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@thomaspatterson5930 Күн бұрын
Are you a Muppet?
@7828191 7 күн бұрын
Hi, good video. What would the specs of this small TVS diode be?. 100 1t NI or 11 NI?. It is installed on a old 3 digit PC Turbo LED MHZ display board (PD 900) and needs replacing. 5V the display gets. Has only one marker at the end and the ->I symbol on the board. Greatful for an answer.
@firephoenix2726 13 күн бұрын
Very nice project! The function principle should be the same like with the "throttle"-tool?! (There the southbridge controls the STPCLK-signal; hints could be e.g. found in the VIA 686B datasheet) That's why I'm also very interested if it has the same problems like stuttering with some soundcards or input devices. Perhaps we can use higher frequencies with the external solution than the internal chipset and for sure the resolution is much better :) Did someone already measured this signal STPCLK when the chipset is used for throttleing to get a comparison? PS: Nice mainboard 8KTA3, have it myself and with Barton & multiplier-change support it's a very nice retro-system!
@DemianTowers 15 күн бұрын
tronco has pensado en sintetizar la voz en lugar de forzarla para evitar su captura? Supongo que no supondrá un problema de salud a largo plazo por no tratarse de algo prolongado, pero puede que te resulte incluso satisfactorio terminar la ofuscación con máquinas anteriores a los dos miles.
@juhani6307 15 күн бұрын
your voice sounds squeeky
@geremychubbuck3730 17 күн бұрын
Best video I've seen on this. Well done and thanks for explaining it so clearly. Keep up the great work 👍
@r4z4m4t4z 21 күн бұрын
very nice! zero means freeze, cool.
@r4z4m4t4z 22 күн бұрын
i knew it
@szyszka8303 27 күн бұрын
i need to buy one!
@albertstorch5224 28 күн бұрын
Perfect! Thank you for the video, it was very helpfull to understand how such types of display work! 👍
@daniellytle3342 29 күн бұрын
Will not replacing a rtc module result in a motherboard not to post? Got one that I assumed I could simply remove it (low battery message reported). Would not boot anything prior to removal either. Now get single repeating beep at power on.
@scrap_computing 26 күн бұрын
Removing it will cause the motherboard not to boot. But you can change its battery. Necroware has an excellent video on how to heat up the RTC module to expose the chip and to replace its battery.
@mikes989 Ай бұрын
There was an article on theretroweb about how to get a Pentium to work on a 386 motherboard. Could you look for it and do the experiment?
@mikes989 Ай бұрын
in V0g0ns there is another one, dont know if the same or one different
@MrHuntR2 Ай бұрын
Hello! Please tell me if there is an opportunity to buy finished products? My competence is not enough to solder it myself.
@scrap_computing 26 күн бұрын
Sorry, but I can't manufacture these myself. But it's not too hard to put together yourself. Just order the PCBs from an online PCB fab, they only cost a couple of dollars. The rest of the parts are equally cheap and you can get them either at your local electronics shop or online. You can also skip the max232 and its capacitors if you are not planning on using the serial port.
@MrHuntR2 23 күн бұрын
@@scrap_computing Hi! I ordered already, tomorrow I’ll go to pick up, see what came :-) And yes, I thought just max232 to use before starting a program.
@josephfrye7342 Ай бұрын
3:22 I know you doing a Beschissen job (pardon my translation swears) I hope you tried your best.
@scrap_computing 26 күн бұрын
Haha yeah, awesome soldering job :D
@kemencegaming Ай бұрын
Why you sound like Kermit the frog
@g4z-kb7ct Ай бұрын
I think your shorts are a bit too tight, loosen them off a bit hehe! ;-)
@g4z-kb7ct Ай бұрын
I left this comment on Epictronics latest video about this adapter but I'll paste it here for you too with some additions. When talking to epictronics I offered to help with the PCB re-design, but since you can do that easily I may as well talk directly to the horse rather than the jockey ;-) There is a very easy way to make the PSU better. Use the same pin header points that the mini buck converter board uses but make your own little power board that is larger and uses all the space inside the PGA socket. The board will sit up on the header pins so you can put parts on both sides of the board. The larger board can have more heatsinking (larger full copper internal power planes) and also have more and larger tantalum capacitors and some inductors which really are necessary for a proper SMPS PSU to work correctly. When mounting the little psu board put a thermal pad under the psu board so it touches the interposer board, push down then solder it down. Those thermal pads can be bought cheaply and cut to any size. A 4mm pad would work well. It really should also be a 4-layer board with vcc and gnd on the inside using large copper planes. The boards are not that big so the cost increase for a 4-layer board won't be too much but it will make a massive difference to power stability, especially with a new larger buck board and more tantalums and inductors.
@svadis22 Ай бұрын
probably the wrong driver is installed 3DMark99 performance should be 3 times higher more details on vlaskcz channel Worst Game Graphics Cards - SiS 6326 8:49 SiS 6326/ SiS 530(6306) have the same core
@ShrineOfLife Ай бұрын
one question of an solder unexperianced - would it be possible not to remove the solde from the pads first, but just heat it up and use it as is, and force the pins in the designated spot?
@scrap_computing Ай бұрын
That would be tricky but I guess if you heat the pads long enough it might work.
@MrGencyExit64 Ай бұрын
Don't take this the wrong way... is that your real voice? The whimsical music in the background makes me wonder :)
@M8R3rojcq Ай бұрын
What an interesting video! That BIOS work was quite a feat.
@404annonymouscontent3 Ай бұрын
How did you find out about how to install the Isa slot? Can’t find documentation online
@scrap_computing Ай бұрын
The ISA slot just needed a 74245 chip which is common in many motherboards of that era.
@rasz Ай бұрын
Those pins just sticking in the air are insane :o Surprised it worked this well at all. You could try grounded copper foil between rows of pins to minimize cross pin coupling.
@stuartcrawshaw3922 2 ай бұрын
Great project!! I question could a TXS0108E be used in place of the 74LVC245 for the level shifting without any mods to the PCB?
@scrap_computing Ай бұрын
No, they have a different pinout.
@stuartcrawshaw3922 2 ай бұрын
Great project!! I question could a TXS0108E be used in place of the 74LVC245 for the level shifting without any mods to the PCB?
@toseltreps1101 2 ай бұрын
You should use AI narration. Your voice and accent are very unattractive.
@sonysve 2 ай бұрын
Good video dude. did you voice act this guy? kzbin.info/www/bejne/jWOUl6OJbbhopdU
@Thales_WH 2 ай бұрын
1 279 / 5 000 In the mid-1990s, I had a very strange processor in my hands, for which I still have no explanation. It was an AMD 486 that had a pretty damaged print showing the AMD logo and a very bad 100. So I set up a 3V power supply and nothing. I thought the processor was dead or something with the board. But the processor in another board didn't run either, but another processor ran in this board without a problem, so I knew it wasn't the board. The Internet was not available at that time, so I wondered if there were any 5V DX4s. I thought I had nothing to spoil and set 5V. the processor started up and worked without a problem. I tried it on another board and with 5V also without a problem. It reported as DX4 100MHz on both. it just didn't work on 3V. That's a very strange combination that I've never seen before. According to all the materials I could find, AMD never made a DX4 that had a 5V supply. Even if it was 5V DX2 and I read the 100 on the surface of the processor stupidly, it wouldn't report as DX4 100MHz. However, it was clearly not a record. So either the CPU was somehow kicked (but it functioned without problem for a friend for a few years and was discarded only when he bought a better PC) or I had a very special processor in my hand, but then I would be interested in what it was?
@scrap_computing Ай бұрын
This is very interesting. I have never heard of a 5V DX4. The highest clock 5V CPU that I am aware of is the DX2 @80, but I think those are very rare too. Maybe some folks at vogons could help you identify the part.
@Thales_WH Ай бұрын
@@scrap_computing Maybe one day some information about the strange DX4 will appear. I have had other encounters with strange hardware. Maybe it will turn out like when I used to have a Pentium 50MHz. When I told someone, everyone told me that it was nonsense, that there was no such thing. Even in the age of the Internet, nothing about this could be found for many years. It was only much later that information appeared that it existed - there were engineering samples. But what I still haven't been able to identify was the record I had for it. It had 1MB L2 cache and switching 50/60/66MHz, form factor half AT. I couldn't find any board with socket4 on the retroweb that would allow 1MB L2 or that information is not listed.
@scrap_computing Ай бұрын
@@Thales_WH Yeah 1MB L2 on a socket 4 sounds too much, but you never know. It could have been a workstation part.
@Thales_WH Ай бұрын
@@scrap_computing I would expect some atypical format for a workstation, but who knows? That board did not have 1MB L2 when it came to me. It had less, I just don't remember if it was 256KB or 512KB, but I remember that it had an unusually large number of empty sockets, so I filled them as much as I could :D
@waytostoned 2 ай бұрын
Considering interposers now for 486 cpus are insane priced now , I get why. Me im thankful I got that trinityworks one years ago for under 30 bux.
@PROSTO4Tabal 2 ай бұрын
Your voice is so funny lol your nd2 life you should be a singer
@toseltreps1101 2 ай бұрын
it sounds like an ugly gay cartoon character
@Megatog615 2 ай бұрын
In the next version, do you think it would be possible to have a built-in 5v header for a fan? This would make for a very tidy cooling solution with say a 40mm 5v Noctua fan so you don't need to use a molex connector from the PSU.
@scrap_computing 2 ай бұрын
That's a great idea. I will try to fit a header for a fan, not sure if there will be enough room for a proper molex connector though.
@Megatog615 2 ай бұрын
@scrap_computing no need for a molex connector, just a 3-pin(it could even be a 2-pin) fan connector. make sure you leave room for the off chance that someone might want to use a 4-pin fan.
@Pickle136 2 ай бұрын
at 3.29 did you intend to skip that pin?
@scrap_computing 2 ай бұрын
Good catch! No, I fixed it later but I just went over all the pins ones more and I did find some dodgy looking ones :)
@RetroErik 2 ай бұрын
Can you explain how you reduced the Multiplier to 2.5X. kzbin.info/www/bejne/mnyzhWZsYsuhrdU
@scrap_computing 2 ай бұрын
I meant to say 2x, sorry about that. I just move the CLKMUL jumper from "MOBO" position to the other which reduces the multiplier from 3x to 2x on the DX4.
@RetroErik 2 ай бұрын
Wow, really nice. I will try to make one soon. Maybe also a ThrottleBlaster
@scrap_computing 2 ай бұрын
Please keep in mind that it's quite experimental. I am not sure why it's not stable on my older motherboard. Perhaps it's better to just solder the two parts together instead of connecting them with male/female headers. This adapter also includes a STPCLK pin which is meant to be used with the Throttle Blaster, though I haven't tested it yet.
@RetroErik 2 ай бұрын
@@scrap_computing Do you believe that distance between the two board is the instability cause? How would you solder it directly? Are there other pins/connectors that are shorter? Will you be trying this out?
@scrap_computing 2 ай бұрын
@@RetroErik I am not sure what is the cause. It seems to be board-specific. I will try soldering the two parts together in case this fixes the issue.
@TheCj71984 2 ай бұрын
Need one of these for socket 7 cpus
@scrap_computing 2 ай бұрын
That would be great, but the pins are more dense on the Socket 7 so we can't use off-the-shelf headers for the pins as we do here.
@rs-qq3os 2 ай бұрын
Wow, really good work , thanks for the video.
@laudennn 2 ай бұрын
A+
@joaoc_PT 2 ай бұрын
PC tower of power
@Epictronics1 2 ай бұрын
Great experiment! Could you redesign the original socket blaster with a more powerful onboard voltage regulator? Unfortunately, even the larger buck converter isn't powerful enough for higher clock speeds. At least that's what I think is the cause of the crashes. Keep up the good work! This is a great project
@llamallarry 2 ай бұрын
The late 486 CPUs sometimes required more than 3.3v, like 3.45v. perhaps they also require a smaller ripple than the older CPU models?
@llamallarry 2 ай бұрын
After a bit of research, the most current these 486 cpus could draw when extremely overclocked is 3.1 ampere, AFAICT. And a theoretical maximum power draw of 10.8 watt at 3.6v in extreme overclocking. In other words the buck converter should support 3A and 10w to allow for heavy overclocking, like 166 Mhz.
@llamallarry 2 ай бұрын
And, for reference, the Intel 486 dx4-100 drew at most 7.5w at 3.3 volts, according to its specs. That means a maximum current draw of 2.3A. The buck converter must support this load as a minimum.
@n.shiina8798 2 ай бұрын
@@llamallarry the AP7176 he use wasn't enough apparently. it was spec'd with 1.7W maximum power dissipation. at 2.3A, the voltage drop should be 560mV at most to satisfy the spec
@Epictronics1 2 ай бұрын
@@llamallarry I noticed when I ran a 5x86 with the large buck that the voltage dropped. They are spec'd for 3A on eBay and Ali but I'm not sure that can be trusted. I'll see if I can find the time to test one
@SudosFTW 2 ай бұрын
This sort of thing needs done with the Socket 423 to 478 adapters as well. When they do show up they go for hundreds of dollars, and there is no open-source project to replace it with. pin-compatible sockets for Socket M/P still exist and can be used instead, and the only difference would be figuring out how to wire up such an adapter so that any socket 423 board can get a socket 478 CPU installed. Ideally, an SL7EY 2.8GHz Northwood.
@GadgetUK164 2 ай бұрын
Great video! The instabilities will be the length and routing of the traces with the 2 tier approach! Brilliant work! I think your original version is better, even if its hard to assemble!
@scrap_computing 2 ай бұрын
Yeah, that's what I am suspecting too. I am also not sure about the connection between the male/female headers, perhaps it's better just to solder them, which could also reduce the height of the adapter.
@Vanessaira-Retro 2 ай бұрын
When that Duke Nukem remix kicks in.
@cowrevenge 2 ай бұрын
Space Quest!!!!!, I know that sound anywhere!
@DoomWarriorX 2 ай бұрын
I wonder why you use 1206 SMD Caps between the pins. If you would use 1608 metric / 0603 the caps should fit without angeling.
@scrap_computing 2 ай бұрын
I prefer using 1206 parts because they are easier to handle, but yeah a smaller part would fit better for sure.
@Choralone422 2 ай бұрын
Great work! I still wish I had my 486 PC from way back when. I had a 3.3V adapter on it in order to use an AMD 5x86 133 MHz CPU as it was a fairly early 5V only board. I think I found the socket adapter via Computer Shopper or PC Magazine. Would be handy to still have it to use it for reverse engineering purposes. I too ended up creating a little tower of sorts in the socket as I also had a heatsink and fan on top of the CPU.
@darthtripedacus1 2 ай бұрын
Always a pleasure to see an upload from you good sir.
@HJ-vu6ek 2 ай бұрын
your sound card works perfectly
@szyszka8303 2 ай бұрын
Amazing!
@emchodevetkov9438 2 ай бұрын
always use the farthest slot for audio and closest for vga - first pc lesson back in 1998 😀
@joyman2000 2 ай бұрын
man.. you are a genius! awesome! i was learning about dreamblaster x2EG but i found this one i never ear about mt-32 pi and all other projects! its cool when you have isa sound card, but why this dissapear on new cards? i dont know but, there is external soundard usb for pc with capacity for connect wavetable daughterboard cards? that should be nice!!