The DOS Machine Motherboard to Rule Them All?

[@aescii5711]

100 years from now and the Ultimate DOS machine will still have upgrades

[@Duo2]

that sounds kinda nice

[@MJRSoap]

"Today we will be replacing the old CMOS Battery with this micro-fusion battery. See, these old CMOS Batterys are getting more and more expensive now adays and the Ultimate DOS machines finally decided to die!"

[@nocturnal0072]

FreeDOS ver. 7.1 with 64 bit expansion. Fpga to emulate any x86 CPU, with multiple clock speed dividers. 100mhz to 10ghz, in 100mhz steps.

[@theunknown7683]

why do I feel like that can be true

[@henson2k]

BIOS has 2099 as last year

[@souta95]

That is a dual-CPU system... The second chip is another Pentium CPU, not a coprocessor. All Pentium CPUs had a built-in math coprocessor. This machine was originally designed for Windows NT.

[@jordicoma]

It was puzzling me, a pentium coprocessor? I never heard of one.

[@gorebrush]

Are you sure it's not for a maths co-processor for a 486SX CPU? I.e. a 487

[@adg1355]

@@TiTiTiTiT It's a Pentium Overdrive that's installed on a 486 mobo.

[@Gany1701]

wow...

[@krautcontent1608]

@@adg1355 I do not think this is true at all. Physical dimensions, pin count and heatsink latches make the sockets either S5 or S7. There also is no 90MHz Pentium Overdrive for Socket 3. PS: Found the CPU Card. It's an ALR 9250. This one comes from an ALR Revolution MP/P90 computer. It is definitively a Socket 5 system.

[@DarnElectricalVolts]

Another >1 hour video from Druaga? This is EXACTLY what I live for.

[@Hydr8Man]

Agreed

[@kamild_]

Speaking of length, is there someone who cuts these videos to some less mental lengths?

[@dytractiate]

i want 1 hour drauga vido though >:(

[@Marko-wi1lb]

ever tried Human Relationships?

[@dytractiate]

@@Marko-wi1lb no

[@aaaalex1994]

This seems to be a Dual Pentium system. Second processor is useless on MS-DOS and Win9x because they don't have multiprocessor support. Also these aren't regular ISA slots, they are 32-bit EISA slots (they're compatible with regular 8 and 16 bit ISA though).

[@Hogdriva]

@@JoshOsRocksWindows NT 4.0

[@aaaalex1994]

@@JoshOsRocks In '95 there was already 386BSD, NeXTSTEP 3.3, Windows NT 3.5...

[@dbozan99]

@@JoshOsRocks All versions of Windows NT have multi-processor support

[@TrolleyMC]

@@JoshOsRocks NT. I can confirm.

[@adventureoflinkmk2]

@@dbozan99 I didnt know the home editions had multi processor support...

[@Cynderfan35]

the sheer size of components is so much nostalgia for me from seeing older computers in recycling center. despite them being often beyond repair, taking them apart allowed take closer look of the past computers.

[@raven4k998]

look at that screen real-estate boy!

[@kmemz]

bit late to the party, but I have an idea for a case to put that system together with. Two slabs of wood, four long screws, a dremel, a drill, measuring tools, and assorted screws and standoffs. assuming you have most of these, it should cost less than $20. 1: Measure the required width and height for the combo of the motherboard, the drives, the PSU, and the card lengths. Measure the thickness of the wood and addthat length to either side of the motherboard. Use that measurement to cut the first slab, Slab 1, to size. 2: Take the other slab, Slab 2, measure the height of the tallest card, add the thickness of the first slab, and add about another half inch, and cut that to size. 3: Drill holes, install standoffs and motherboard, put one card in, and measure how much space there is between the slot and the bottom of Slab 1, and use that to cut out a big hole for the PCI/ISA area. Save the cut out block. 4: Measure the cutout needed to fit the IO area on Slab 2, and cut out a little more than you need, to fit the large cables more easily. 5: Use the block saved from 3, and cut 90° wedges. Screw these into either side of the motherboard using some of the long screws, so that the 90° corner is aligned with the corners of Slab 1. 6: Install all of the PCI/ISA cards, and use the rest of the long screws to install Slab 2 onto the wedges, joining it with Slab 1. If all the measurements were done right, Slab 2 should sit on the PCI/ISA brackets, and be aligned fairly well with the bottom of Slab 1. 7: Use the drill to tap the spots where the PCI/ISA brackets are supposed to be screwed in, and put screws into the tapped spots. you may have to go bottoms up instead of top-down, so the head of the screw actually torques the bracket into place like normal. 8: use whatever rigging method you wish to mount the CD drive, PSU, HDD, Power button, etcetera. First thing that comes to my mind, is double-sided foamy tape or stick-on velcro. 9(opt): You could take the parts out, sand the whole thing smooth, and apply some sort of wood finish paint to make it look extremely nice. Buying and attaching stick-on rubber or foam feet will also make it a lot more desk-friendly. It took me from the introduction of the new (pair of) board(s) to the end of the video to write this comment. I doubt it will happen, but at least the idea is out in the open now. Another idea for videos, is to get a capture card that takes a VGA signal, and using that on a laptop, alongside a decent webcam, in OBS. That way, you can show the direct output of the monitor, without having to adjust the webcam between showing off parts and display output. All the while, being able to switch betweem them on the fly, without editing it together. Well, Druaga1, it's been a good run for me, today in this comment section, I suppose I'm off. Still inspired -Killermemz, formerly Yackaro.

[@raven4k998]

you're over complicating it way too much just use a serial box and some duct tape🤣🤣🤣 after all this is the weed and SSD channel not the woodshop class channel🤣🤣🤣🤣🤣🤣

[@pijussimkevicius6149]

Wow! New video from druaga!!!!

[@denniswoycheshen]

Didn't even get through the ad and I liked it. I know what's coming. :)

[@pijussimkevicius6149]

@@denniswoycheshen Same!

[@denniswoycheshen]

He can run setup on doom and Duke 3d to setup the sound options can't he? Oh wait. Haha. I commented too soon ;)

[@valadi7698]

Lesson learned: - Step 1 Clear CMOS - Step 2 Everything else.

[@nocturnal0072]

Step 1.1: replace the cmos battery.

[@raven4k998]

-Step 3?????

[@raven4k998]

@@nocturnal0072 but but it's an old motherboard why on earth would you do that to the old motherboard it makes to much sense

[@nocturnal0072]

@@raven4k998 Step 3 is always "profit".

[@raven4k998]

could you imagine if that worked

[@hrnekbezucha]

I don't know who you are or why I'm here but I like what I'm seeing. Well done, algorithm

[@raven4k998]

are you sure?

[@michaelfingers7726]

I've never heard someone so excited to hear Fur Elise 1:10:53 Thanks for taking us on this adventure, Druaga! I think I learned something.

[@DxDeksor]

Just enable LBA to fully use the 8GB HDD ! CHS parameters are for really old drives (less than 500MB ^^)

[@raven4k998]

and now you know why hes stuck using 512 mb hard disks instead of 8gb on that machine he does not know any other way

[@DxDeksor]

Dual CPU is pointless. Anything running on DOS (including Windows 9x) can't use more than one CPU. So the second CPU isn't being used at all. Install Windows NT 3 or 4 to use both of them.

[@user-ro1cc8tz6d]

its a coprocessor, they combine to make a single thread which dos can handle pentium itself also includes some coprocessors too.

[@DxDeksor]

​@@user-ro1cc8tz6d No they don't, it's a dual CPU board. Look at the POST screen, it says "dual PROCESSOR configuration" Just like the 486DX, the intel pentium didn't need a coprocessor like the 8088/286/386 did : they already came with it.

[@user-ro1cc8tz6d]

@@DxDeksor so as i researched a little bit; coprocessors used like a acceleration card and it wasn't used for executing programs. But curtain applications used it specifically for accelerating some calculations: www.reddit.com/r/dosgaming/comments/8ydi7e/prequake_games_that_use_a_math_coprocessor/ so i was wrong in the first comment but that doesn't mean they are full blown processors. newer nt kernels might make use of it by using it in mathematical acceleration without asking to application. i need to search a bit

[@DxDeksor]

​@@user-ro1cc8tz6d Math coprocessors are called "x87" because they all end by "87" (8087, 80287, 80387) and they were usable by any DOS application. But the 486DX included the "487" in its heart, so the pentium did. 486s and Pentiums have no external FPU due to that (the 487SX doesn't count for many reasons I won't explain here, but just to give you an idea, it's a 486DX in disguise). What druaga really has is a Dual CPU motherboard, with Two Intel Pentium running at 90MHz (they both use the same socket as you can see, the only thing different is that they use different coolers for some reasons). Since this board was made for server usage, this is perfectly normal to see that (just like modern servers can have more than one CPU socket to install multiple CPUs on one motherboard) ALR is know to have made several servers with x86 CPUs. Few years later, they made a server that could use up to 6 Intel Pentium Pro (The original P6, ancestor of the Pentium II, Pentium III, Pentium M and Intel Core 1)

[@adventureoflinkmk2]

Hmm.. wonder if you could put a couple Pentium 166 or even 200s in there, then put some more RAM inside, then windows 2000 aka NT 5.0 would be possible.. perhaps even XP Pro aka NT 5.1

[@vwestlife]

Those are actually EISA slots, not ISA. And 500-ish megabytes (either 504 binary megabytes or 528 decimal megabytes, depending on how you count it) was a BIOS limitation of most pre-mid-1990s PCs, not a DOS or FAT16 limitation. If the hardware supports it, FAT16 can support up to 2 GB partitions (or even up to 4 GB in Windows NT 3.x). With either a BIOS upgrade or the use of drive overlay software, you can get around this limitation on older PCs and allow the full capacity of the drive to be recognized and used. (A similar BIOS limitation of 8 GB maximum drive size applied to many late '90s PCs.)

[@jimmyhopkins1]

Hello Mr vwestlife

[@whoisntwhoisit2126]

Love your personality while your chatting along, enjoyable video, thanks!

[@johnathanmcdoe]

This brings back so many memories of a time when troubleshooting your hard and software *for days* to make that damn game work was a game in itself.

[@WOSArchives]

The "512 MB" limit you were talking about refers to the limit of old DOS computers to a 504 MB drive due to early BIOS's having a limit of 63 sectors, 16 heads, and 1024 cylinders, leading to the 504 MB restriction for a hard drive. Starting in mid 90s, enhanced BIOS's and, by the 2000s, Logical Block Addressing, bypassed the restriction.

[@lavenderfox2430]

"this board came with a case - but it was too massive" But...how can you fit that board in any other case?

[@nathanhamman418]

He should get a custom made case for it, using modern tech, he could save a lot of space compared to what it used to be.

[@cosminraduta8267]

he'll invest in more lego blocks

[@xaenon]

Server case. That might very well be a 'server' board he has. Back when 486-class rigs were the hottest things out there, you could get these absolutely huge tower cases, which were referred to as 'server towers'. I had one; it was a computer manufactured by Laser, and in its former life, it had been used to run those old NYSE and Wang dumb terminals in a telemarketing company. My tower was very nearly as tall as my desk, and the case, when empty, probably weighed 25 lbs. It had a freakishly huge power supply (I don't mean just big capacity, either - picture a typical AT power supply, but about a foot in length, with a fan on either end!) and it easily added 8-10 lbs to that box. The case was set up with six bays that could used for up to three - count 'em, THREE - full-height 5-1/4 inch hard drives, or up to six half-height drives, or some combination thereof. In addition to this, there was the obligatory 3-1/2 inch floppy bay. The case had provision for up to TEN peripheral cards (the motherboard that was in it had eight, all ISA). The ridiculous thing was, the motherboard had a 486dx/33 processor. Probably one of the fastest things available when it was built. The mobo had no built-in drive controllers, no built-in ANYTHING. It was JUST a processor, memory, chipset, and a whole bunch of peripheral slots.

[@juhasto91]

This is the druaga1 content that i'm always waiting for. Saved my saturday morning

[@DxDeksor]

You shouldn't hold the AT power switch that way. I used to do this and I almost killed myself. AC power is getting through that button so you DO NOT want to accidentally touch the cables ends on there ... I zapped myself once with that, thankfully it only went through my finger and not through my whole body ...

[@isaacbushnell2663]

I'd imagine it's a low power signal to talk to the board and power supply?

[@AiOinc1]

@@isaacbushnell2663 AT power doesn't communicate in any way with the motherboard. This is long before the advent of safe soft power switches. This is what we call a *hard* power switch, it connects the power supply to the wall pretty much.

[@DxDeksor]

@@AiOinc1 yeah that's why I'm warning him. I've been zapped before by inoffensive things, but this, this was MUCH stronger, and it left some little burn marks on my finger. Thankfully it was really short. I didn't know wall power went through this before, that's how I know x) That's also why they put 4 cables (instead of 2) in a big black protection, and that the cables themselves are much thicker than the other.

[@im.a.nickel]

Can agree I found this out the hard way as a kid. The one in my machine didn't have the heat shrink around it.

[@AiOinc1]

@@im.a.nickel Usually they don't have any kind of cover because they expect only qualified service personnel to be inside your computer, or that you're smart enough to unplug it first.

[@jangelelcangry]

Reggie or not, My body is ready.

[@markusTegelane]

:D

[@FrezzyYT]

“Get your body ready” best quote from him 😭

[@NJRoadfan]

That machine is begging for NT 4.0 or even Windows 2000/XP if you throw more RAM into it. Its a Dual Pentium 90, so it'll be a bit snappy. EISA slots are a nice touch, they make 10/100 ethernet cards for the bus if you want to conserve PCI slots.

[@AN-yy9cq]

But he wants a dos machine

[@udirt]

and pretty decent raid controllers, too. after so many years I don't really remember the brands anymore... I think I had a DPT, probably mylex could also be found. I loved EISA after I found you could do the IRQ assignments via software AND validate them!!!

[@AureliusR]

@@AN-yy9cq if he wants a DOS machine he picked the wrong motherboard, this is just stupid

[@ask4kobebeef]

will a p90 even run windows 2000? i think i ran a beta copy of nt4 on a p100 back in the day. but w2k sounds a bit far.

[@NJRoadfan]

@@ask4kobebeef Of course it can, even a 486 can run Windows 2000 given enough RAM. P90 can even run XP if you wanted.

[@mickaka]

I’ve just been asked why I keep shouting “DO A #$!* FRESH INSTALL DUDE!!” at the TV.

[@sonixthatsme]

Well that is the easy way, not fun at all.

[@TrolleyMC]

That ruins the integrity of the ultimate dos machine. That install has been cloned, on different drives in the span of 10 years. If that install dies, a piece of druaga dies too.

[@sonixthatsme]

@@TrolleyMC Exactly!

[@whilhelm9511]

i love your channel man, so many days of just saurbraten alone in my room on my freebsd laptop while listening to your videos in the background. keep at it mang.

[@SamSanai]

Highest fat16 volume size compatible with dos is 2 GiB

[@eduardoavila646]

Kinda, above 1gb its usually buggy at least in my experience

[@tin2001]

I used to use piles of 2GB partitions. Never had any issues aside from the insanely large sector size (so lots of water space).

[@clashblaster]

this frankenstein pc is cursing you for not letting it rest in peace

[@nocturnal0072]

Oh gawd. 😂

[@TtEL]

7:08 - I just noticed the Kirby plushes!

[@Nick-ef8tu]

I wish Kirby was smoking a stick of ram :/

[@solarstrike33]

He did in the 2018 4/20 video.

[@raven4k998]

be careful what you wish for kid

[@TrialMacameau]

1:15:11 Oh the speakers are turned up~ *loud windows sounds start, 1sec later interrupted by an error* Oh deniiiiiied~ - Dragua 2019

[@simonvannarath]

The EISA Configuration Utility was a floppy disk specific to that system, that would have detected the cards and given you access to the (E)ISA configurations (IRQ, I/O, etc.), but at least you got your expansion cards working by clearing the EISA config data.

[@stefanlemanski9141]

just wanted to add exactly this. oh, and you need a cfg-file for every component, including the mainboard. mr_slug is the source. don't know why clearing the eisa config works for him Oo

[@simonvannarath]

I'm having a guess it came from an AST Manhattan server? I had one that had a very similar board configuration (dual Pentiums); it was given to me with case... it was a huge black box with mostly missing drives. It was almost 20 years ago since I had it, then junked it some time after.

[@ReshiLuna]

Idk where to upload it, (I have no social medias!) but would you like some fanart of a shades-wearing Oddish holding an SSD?

[@adventureoflinkmk2]

Photobucket or imgur?

[@orinokonx01]

ISA slots are 1 to 1 pin compatible to the next slot over, so there are no specific IRQs for each slot, they all share the same signals. Moving cards around to different slots does not select a different IRQ.

[@TrolleyMC]

You need an IDE controller card. Moat dos builds include them for reasons. They accept big sizes, dont need to input the settings of the drive, and dont run on a battery.

[@DxDeksor]

What are you talking about ?

[@EvilTurkeySlices]

Deksor to get past 504mb on older boards. Also they don’t need to have the setting input for the hard drive and aren’t affected if the cmos battery dies.

[@DxDeksor]

@@EvilTurkeySlices it doesn't work that way. If your motherboard has a capacity limitation, you need to update the bios if you can or to install boot software such as Ontrack Disk manager or EZ-Drive to get over the limitation. I can use any IDE controller from the 80's on my 486 from 1994 and I'll be able to use drives bigger than 500MB because the BIOS is newer. My other 486 from 1993 can't do that, so I need to install a boot software as I mentioned.

[@TrolleyMC]

@@DxDeksor It is easier to just use a controller card.

[@EvilTurkeySlices]

Deksor it does definitely work that way.

[@xaenon]

500-odd megabytes was a BIOS limitation in these early machines. To put a larger drive in, you had to either get a custom BIOS made (there were companies who could do that for you), install a third-party interface board with its own BIOS, or run drive-overlay software. A second limitation was the FAT16 file system, which max'd at 2047 megabytes in DOS. Allegedly under some operating systems, FAT16 could be extended to four gigabytes? I think? but I never had to deal with any of that, and when 486s were 'cutting edge', a two-gb drive was ridiculously expensive (this is part of how the Iomega Zip became popular overnight; it was a comparatively-cheap alternative to buying a bigger and/or second hard drive!).

[@DxDeksor]

ISA slots don't have fixed IRQs. IRQs are configured on the cards themselves ^^ Moving the same card from slot 1 to 8 won't change anything. That IRQ thing is true for PCI though, but it's not the same thing as IRQs of ISA. Since AWE64 is a plug and play card, some software is configuring the Address/IRQ/DMA settings automatically. You should check which one of these the software sets your card at and then configure your games to use the same settings. If you disabled sound in duke 3d for example, it would have started right-away.

[@udirt]

There's a bit more to it in a EISA board, some could do PnP, others not. (I didn't sit through the video now, I sold a similar EISA monster to a friend in '99. I suppose i also invested the money in good cocktails, so EISA...? it's a bit spotty memory)

[@DxDeksor]

@@udirt Well probably, but he didn't use any EISA card, so I guess it doesn't matter

[@steingat]

Gonna love plug and play. Resetting the cmos forced it to redo all of its PNP configuration

[@pvc988]

Coprocessor is just different name for FPU (or math coprocessor; to make floating point operations faster). I don't think that there were any Pentium class CPUs without an FPU. There were 486s with and without it. And everything earlier had external FPU which was optional. And both of these large chips are regular Pentium CPUs. That's what was there before multicore. BTW. I think WindowsNT should be able to utilize both of them.

[@k1stnberger234]

This is not what I needed to discover at midnight. Now I'm staying up till 1 am. G r e a t.

[@watiserdannogover]

Used those motherboards a lot back in the dos days and it was great. Had a big tower with 11 or 12 ISA slots and only needed to change the cpu card when I upgraded 😎 But the cpu cards where almost as expensive as a whole pc so when VLB slots where introduced I replaced everything.

[@raven4k998]

yeah, but back in the day it wasn't a boot lottery due to the fact that back then the hardware was brand new and not old and worn out to the point that sometimes boot boots and other times it crashes like this system does🤣🤣🤣

[@Ariannus]

You can set the drive to AUTO instead of user and it will detect the disk settings. ISA cards usually have their IRQ set by a jumper on the card or sometimes set through a software utility and saved on an eeprom, the slot shouldn't matter.

[@TommyCrosby]

People these days are always complaining about how buggy is Windows and Plug n Play is still too hard to understand. Clearly they never knew how it was before...

[@FeelingShred]

What amazes me the most is how that same generation who lived through the DOS days settle for modern Windows 10 "automated" bullshit and lack of control over their machines.

[@joefish6091]

they could try to install BSD to get a flavor of the old days...

[@fuentescgabriel]

That´s a Dual Pentium system. All Pentium processors have the coprocessor (FPU) built-in. Look at the bios at boot. It says Dual Processor Configuration Detected. Coprocessor or Math Coprocessor was the name of the FPU back then.

[@ABGamingAdam]

Wahay druaga! I love your videos man, keep doing what you're doing!

[@kokodin5895]

lba support is needed for fat 16 partition bigger than 512mb and smaller than 2gb and you can still have multiple fat16 partitions under 2gb for bigger drives on older motherboards, type in cylinders, heads and tracks and sectors and use harddrive suppoer overlay software to place compatybile layer in memory

[@EpicTyphlosionTV]

Even more stuff for the ultimate DOS machine?

[@scheitinjebroek]

FAT16 goes to 2GB. The 512MB limit is most likely a limitation of the C/H/S system

[@doq]

1:00 FAT16 is limited to 2 GiB partition size. It's FAT12 that's limited to ~512M

[@eduardoavila646]

Me: Oh yeah a druaga1 video! Also me: OH WAIT 1:17h F*CK YEAH!

[@LastofAvari]

I'm a simple man: I see a Druaga video, I hit the like button :)

[@raven4k998]

Denied Breaks the like and dislike buttons no button for you now sir

[@nxtfighter7425]

New video!! I was waiting so long. Thank you!

[@Axctal]

You can plug your CF card via USB-2-CF card reader to a linux machine and read or reconfigure your C/H/S on the CF using a usual fdisk (switch to expert mode when inside)

[@sinchrotron]

Why didn't you enable LBA?

[@AiOinc1]

DOS has shit support for LBA, about the best you can get is making a million 2GB partitions of a drive.

[@DxDeksor]

@@AiOinc1 that's not DOS having a problem with LBA, it's just limited to FAT16

[@AiOinc1]

@@DxDeksor Unless you install something like 4DOS or some other later modification of it, youre not going to find a version of DOS with much larger disk support. Using FAT16 and never having the option for another file system could very well mean that LBA support was never fully implemented in order to save valuable time and disk space at the time.

[@DxDeksor]

​@@AiOinc1 what about DOS 7.1 (and 8 but nobody cares about DOS 8) which is in Windows 95 OSR2.x and 98. These two support FAT32. You can make 4 FAT16 partitions with DOS 6.22, no matter what drive/interface is behind that (as long as it's big enough of course) The biggest HDD DOS7.1 can handle without needing third party programs is 128GB (to format it, because I think I remember hearing people say that DOS 7.1 can use any FAT32 partition if you pre-format it with something else)

[@keithwhisman]

Do you remember the Cubic MOD Player? I spent hours listening to .MOD midi music back in the day.

[@bobograndman]

I love the amalgamation of technology used to birth this dos monstrosity

[@ReshiLuna]

You should see the PC I'm trying to build, lol. It basically just scrap parts. (I only have hand-me-down parts I'm slowly building up from where family gives me spare stuff when I fix their PC's. )

[@yabobay]

dostrosity

[@mattj65816]

@15:40 If he turns it on and the thrust from the CPU fan causes the whole riser board to torque over and break, this will be the greatest Druaga1 video of all time. Fingers crossed...

[@joeshmoe000]

52:30 I've had similar problems with a bad IDE cable. After pulling them out enough times, they fail.

[@thevividyoshi]

Omg I was just watching your videos and I saw you upload a new vid, yay!

[@cuddleslapine]

hey, @Druaga1, can you upload somewhere or point me where I can find this boot up sound at 8:40? I can't find it for sooooo long. Thanks!

[@linksmith1057]

It's weird how fantastically happy when I saw "IRQ set at 5 Successfully" even though it wasn't my computer. And when windows boots up, he turns into Cheech Marin

[@hugosimoes5119]

I must admit.. I haven't watched all the video but ... did you tried updating the bios of those boards? from my experience, updating bioses will enhance things like usage of big hdds.... and there is LBA mode at 32:30...

[@jschryver27]

like he would be able to find a bios for this old board i mean it sounds good but the problem is can he find a newer bios for the same board

[@hugosimoes5119]

@@jschryver27 all is possible. there are repositories for old motherboard bioses and drivers. some boards never got a bios flashed even there are updates. other boards simply dont see a bios update release.

[@AiOinc1]

@@hugosimoes5119 You can't "Flash" a board like this. This is before flash memory was really a thing, and it was incredibly expensive. You'd probably have to either replace the BIOS ROM with an updated version or get an equivalent PROM/EPROM/EEPROM and write the updated file to it before you could get anything out of it, and even then there's no guarantee it'll work.

[@hugosimoes5119]

@@AiOinc1 Yeh ok. Things got better since then and we can flash bioses.

[@Dark_eVader]

This wouldn't have been a Druaga1 video if everything worked the first time.

[@seqfreq]

You should definitely do a video of that sample recording process. I'd watch it.

[@kippenkopjes]

Whats up with these short uploads, what to do with my life. ill guess i re-watch this again.

[@waycic]

Look at that, two ads in an hour. Druaga is a god

[@soleroks]

*God rejoins the game*

[@raven4k998]

Druaga1: it's going to crack the board oh shit God: that will teach you to use bottle caps as a motherboard stand lol

[@corywhitesell4829]

That 341MB drive wasn't autodetected, it was manually configured by the previous owner of that machine

[@retroretiree2086]

I don't know if anyone said this below but to uncompress the files ending in a underscore you need a DOS utility called expand. Then for example type expand xxxxxx.ex_ xxxxxx.exe. Also if i may say so - you have a unique approach to trouble shooting :)

[@RaimarLunardi]

Motherboards usually have a jumper to clear cmos... no need to remove the battery...

[@nocturnal0072]

I second that. Also removing the battery doesn't always work right.

[@charlesdorval394]

Wow, that BIOS brought back so many memories

[@pentiummmx2294]

that alr board is some fancy server board with tons of ISA and PCI slots

[@EweToobUsername]

3rd power connector? I think it's called an AUX power and it predated the 4 pin P4 power connector. I had a Pentium 60 with one of those because it had 5 ISA and 4 PCI slots, and needed extra juice to run all the cards.

[@martinturner5484]

528MB is the first actual drive limit you come across in old drives due to the limited addressing registers old BIOSs had. 512MB is obviously the highest size flash storage that will still fall under this limit. www.dewassoc.com/kbase/hard_drives/drive_size_barrier_limitations_2.htm

[@goeiecool9999]

Could you have put a loud noise warning at 40:30 with the high pitched noise? Nearly blew my ears out.

[@mmgamer9276]

always leave the hard drive settings on auto and make sure the cd drive and hard drive ribbon cable are in the same connector like the black ide connector for the hard drive and the cd drive on the white ide connector that is on the motherboard or on the slot cards

[@xenonkay]

Windows has a dosmode setup program you can run at any time just like most of your drivers and games. You should never have to manually edit config or ini files just to change the video driver. And that's a classic resource conflict. That motherboard brings a lot of extra hardware you didn't have before with its own resource settings, and it probably handles interrupts differently with the coprocessor installed. You can put your ISA cards wherever you want. It doesn't matter except for maybe audio interference based on trace length and what your sound card is physically near to. The slots are all electrically linked together in series and you can verify this with a multimeter set to continuity test. This is also why old servers could daisy-chain ISA backplanes; it's all essentially one long set of wires. It's the cards themselves that have to be configured to use non-conflicting resources. IIRC ctcu shipped with AWE and later SB16 cards for the purpose of setting their resource configuration while diagnose shipped with earlier cards. Also if you want to get really greedy with the video settings that Cirrus Logic card can take two more SOJ40 DRAM chips to bump up the VRAM. You'd just need to get something with similar specs to the soldered chips on the board.

[@DontScareTheFish]

@Druaga1 CHS (Cylinders Heads Sectors) had a 500MB limit, to get past that limit you needed to use LBA. en.wikipedia.org/wiki/Cylinder-head-sector will give you some useful info. If you can switch the BIOS to use LBA instead of CHS you should be able to use a CF card larger than 500MB

[@TheHermitHacker]

This brings back so many memories.

[@Xrayscope1]

love your dos machine videos, please make more of them :)

[@Mr_Meowingtons]

512 is for Normal any thing over that you need to use LBA settings in the Bios 2GB is the limit for FAT16

[@kaylaandjimbryant8258]

Dude, those are EISA slots. They are backward compatible with ISA, so you are cool putting 16 bit ISA cards in them, but they will also take 32 bit EISA cards. The fact it has the PCI slots shows it to be a transitional period board when PCI was coming on the scene. You may want to look for two capital Sigma letters on the P90 there. If they are absent, you have a FDIV issue.

[@pilgrimm23]

regards disk size: Fat16 max is actually 546mb I used to do a lot of DOS hacking 20+ years ago. I forget the Track, Sectors used back when on the various drive venders. You are right 512 is about the max USABLE space.

[@JessicaFEREM]

I wonder if there's a BIOS update

[@rubeusvombatus]

I'm very interested in seeing what case this came with

[@orinokonx01]

Duke3d uses a setup.exe program to select (or disable) sound card options. Try that and you'll be able to play it with no sound. Back when I used to play duke3d multiplayer over modem with a friend (back when I was a wee little kid), we had to disable music playback in the setup program otherwise we would get out of sync errors. It was almost like the game was trying to sync the music on both ends, or it had timing issues trying to play the game, send and receive object data over dialup, and play midi music via the SB card...

[@Nitro_0999]

Dude that looks awesome!! Druaga1 for life!!

[@keithwhisman]

Your videos are far more entertaining when I’m high. Marijuana is amazing shit.

[@sebastianramadan8393]

As I recall, the last Pentium processor to come with an MS-DOS-booting OS by default on PCs was one that used Windows 98 SE, or an MS-DOS boot of Windows ME. Those were Pentium IIIs with between 500-1500mhz or so... though you shouldn't have much of a problem booting an early Pentium 4 into MS-DOS... maybe disable hyperthreading if that's on it... or you could try one of the original (single-core) AMD Athlons of the same era... they were freaking great for their time!

[@bundesautobahn7]

The computer can only see apparently 504 MB per harddrive and is due to a BIOS limitation. Doesn't seem to matter if it is an AMIBIOS, Award or Phoenix BIOS.

[@NonsensicalSpudz]

What I'm having annoyance with right is, creating a bootable win 10 usb on a Mac. win 10 is 5gb so fat32 is not happening.

[@deborah_chrysoprase]

This was one hell of a wild ride

[@intel386DX]

What is the max RAM this beast supports?and does it support dual 233MHz p1

[@Ryan-go7qs]

That motherboard in the beginning looks a lot like one of the computers my dad has back home.

[@marccaselle8108]

I have never seen the alpha version of doom. The regular shareware version of doom, won't fit on one 1.44 megabyte floppy disk.

[@torafuma]

You know that the BIOS on the first 486 monthboard has a Hard Drive Detection tool built in, right? Its in the Hard Disk Utility menu.

[@Natures_Intentions]

It would be cool to make a case to fit it

[@sarreqteryx]

file extensions ending in underscore (*.??_) are an old Microsoft per file compression format, it has nothing to do with Adobe, except that maybe Adobe also used it in their old installation disks. also, you technically have no ISA slots, those are EISA, which are backward compatible.

[@szponiasty]

Why do u set disk parameters to "user" instead of "auto"?

[@Jigglenomicon]

Fyi, there is a Setup.exe in the duke3d folder, run it and select no sound and it should have run as fine as it would on a 90 mhz cpu

[@Jigglenomicon]

nevermind, im a dumbo and only watched half before you ran the setup

[@solar3mpire]

in Bios onboard com-2 serial irq 7 (irq conflicting with SB PNP detection)

[@Melkizidor]

Might need to make a case out of legos, or similar blocks.