1024K reasons to fix this Pentium Pro 1M!

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Bits und Bolts

Bits und Bolts

Күн бұрын

Пікірлер: 226
@stamasd8500
@stamasd8500 13 сағат бұрын
And this is why I sent you that CPU. :) I knew that I wouldn't be able to fix it myself, and I should leave it to the expert. Like I wrote before, it was exactly like that when I got it, including the missing pins. I didn't attempt to straighten any myself because they're so weak. I'm happy that it lives again.
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Sorry that it took so long to make that video. Thank you for the CPU - I am sure it will appear in more videos!
@dim0n1
@dim0n1 11 сағат бұрын
as bits und bolts sad at the end of video, is there any benefit to have a 1m cache version or its just a collection thing please?
@stamasd8500
@stamasd8500 10 сағат бұрын
@@dim0n1 It helps caching a larger amount of main memory, which is/was at the time primarily useful in servers. In a day-to-day retro-gaming-PC scenario, likely slim benefits to none.
@tomteiter7192
@tomteiter7192 10 сағат бұрын
@@dim0n1 useful or not 1M Cache "on package" was insane at the time
@MeriaDuck
@MeriaDuck 9 сағат бұрын
​​@@tomteiter7192absolutely, released in end of 1995! The central Unix system shared by lots of students had 64Mb of RAM and was considered huge. Regular PCs would've had on the order of 4 to 8Mb I'd think.
@paisleyboxers
@paisleyboxers 14 сағат бұрын
I ran a PPro 200Mhz for WAY longer than I ever should have up until 2003 on a windows 2000 box w/ 3DFx Voodoo 2. This video warmed my heart.
@oldschooldude8370
@oldschooldude8370 14 сағат бұрын
That's gangster man.
@madmax2069
@madmax2069 11 сағат бұрын
That's about how long I ran my P200 mmx (non pro) with a voodoo 3 2000, but I never went higher than 98SE.
@xsc1000
@xsc1000 10 сағат бұрын
@@madmax2069 I had 486/160 running NT4.0 :-)
@Lady_Zenith
@Lady_Zenith 10 сағат бұрын
@@madmax2069 It often amazes me how back in the day people had such an imbalanced setups. I had K6-2 350@500Mhz and Banshee, and that was bad enough, but voodoo3 needed at least decently clocked Pentium 3 or early Athlon to stretch its legs. The poor thing must have been so bored on that MMX 200.
@tomteiter7192
@tomteiter7192 10 сағат бұрын
Well, it was an insane monster setup at the time. Hard to let it go, I imagine :D
@lemagreengreen
@lemagreengreen 10 сағат бұрын
Now that is a CPU. 1MB was an insane amount of on package cache for the time as well, so expensive.
@3dfxvoodoocards6
@3dfxvoodoocards6 17 сағат бұрын
It will be interesting to see some benchmarks with this CPU :)
@S9uareHead
@S9uareHead 16 сағат бұрын
@bitsundbolts A request: *please* use Windows NT for Pentium Pro benchmarking. PPro is pretty bad at 16-bit code, so it runs poorly under DOS or Win98.
@boardernut
@boardernut 13 сағат бұрын
it would be interesting comparing it to a regular Pentium (P54) without 3D acceleration in Quake (software rendering)
@2dfx
@2dfx 6 сағат бұрын
Very
@jamesrdgrs
@jamesrdgrs 6 күн бұрын
Nothing better than starting my Friday morning with some BuB CPU repair action!
@sandmanxo
@sandmanxo 11 сағат бұрын
I had a couple of dual PPro 200 512kb systems I built for where I worked at back in the day, but never saw a 1mb cache version. One of them was used until around 2005 due to lack of a budget to replace them, and at 233mhz and 2 cpus it was still decent for office productivity at the time.
@theSoundCarddatabase
@theSoundCarddatabase 2 сағат бұрын
What a ride. Thanks for making this video and having the courage to fix those pins. Your patience is legendary!
@michaelturner2806
@michaelturner2806 15 сағат бұрын
Wow! Getting the solder to just fill in the crack seemed amazing enough, actually transplanting full pins was awesome!
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Thanks! I was surprised that it worked so well!
@Choralone422
@Choralone422 8 сағат бұрын
Excellent repair on that CPU! The Pentium Pro has a special place in my heart as it was a CPU I had always wanted to own but never did back then due to cost. I did have a friend who had a Pentium Pro in a Gateway 2000 PC that had that same mainboard in it. He had acquired that machine through less than savory ways though and I lost touch with him back in 1999 after he moved out to the west coast of the US.
@Shofotolavski
@Shofotolavski 13 сағат бұрын
Half a month ago, I saw a small laser device for repairing gold necklaces at an exhibition in Shenzhen. My first reaction was that if it could be used to repair CPUs and sockets,
@weedmanwestvancouverbc9266
@weedmanwestvancouverbc9266 Сағат бұрын
You can get incredibly small tig welders meant for Jewelers to tax stuff together so that they can flow gold or silver solder on them
@Shofotolavski
@Shofotolavski 55 минут бұрын
@@weedmanwestvancouverbc9266 That machine is laser welding, the welding material is gold wire, there is a laser indicator positioning, there is an LCD display to view the welding process, the welding speed is about 0.5 seconds, I don't know if it can be used to repair the motherboard CPU socket
@Shofotolavski
@Shofotolavski 51 минут бұрын
@@weedmanwestvancouverbc9266 I know that argon arc welding and laser can weld smaller things. The manufacturer demonstrated on-site welding to repair the smallest chain of a gold necklace.
@ChEd1980
@ChEd1980 16 сағат бұрын
Straightening tiny pins like this can be done using a mechanical/propelling pencil tip/tube if you remove the pencil lead. Gives support all along the pin and doesn't need tiny pliers.
@Clancydaenlightened
@Clancydaenlightened 13 сағат бұрын
.7mm .5mm or .3mm lead size?
@bitsundbolts
@bitsundbolts 11 сағат бұрын
I have tried this method and I agree that it works. Unfortunately, my hands and the pencil will block the view when I work on the pins. I also believe that all the pins that broke off would also break with a mechanical pencil. Those pins are the most fragile pins I've worked on so far.
@drewnewby
@drewnewby 11 сағат бұрын
Having done a few, they're done for when bent at the base. The material stress is too high. A mechanical pencil works only so well. Physics has claimed those pins, time for donors.
@ChEd1980
@ChEd1980 11 сағат бұрын
@@bitsundbolts Yeah if you are trying to film under a microscope not ideal for sure and there's no saving pins that are visibly damaged at the base are done for regardless of method as you say.
@SatansLtlBaby
@SatansLtlBaby 14 сағат бұрын
love the music during that one pin bending attempt
@DefenderOfBoston-yo2tl
@DefenderOfBoston-yo2tl 8 сағат бұрын
Hearing your vocal expressions of joy upon success never gets old. 😄 No idea why you were apprehensive of this repair, it literally went exactly as I expected. But then again, I'm an optimist, haha. Those pins cannot be pure gold, they behave almost like an aluminium alloy. Looks like Intel was trying to reduce costs on those chips, as the huge cache probably made them expensive enough already. On a side note, Knipex are of course the best (not just the flat jaw ones) and these pins were probably all beyond saving so it didn't make a difference here, but generally speaking I believe the toothpick method may be more gentle and yield better results in some cases (esp. pins on pads), as it allows you to apply counter leverage and thereby better focus on the area that force needs to be applied to. Anyway, it's always heartwarming to see another historic piece of computing tech back in action, I'm really looking forward to seeing more content about it in the future! On another tangent, I'd like to rant about the fact that BIOS flashing can STILL be a super irritating process, specifically if it is necessary to flash a board so that it actually supports the CPU that you bought for it (e.g. a B650 board so that it supports a Ryzen 9000 series CPU). At least these days, you can usually flash it without obtaining and installing a supported older CPU first, but the process is usually not sufficiently well documented and often fails without apparent reason. I pity the person that doesn't have a bag of old USB Sticks to try until one is found that works. End of rant! 😉
@envoycdx
@envoycdx 5 күн бұрын
Happy days! Nice to see it running again.
@WooShell
@WooShell 15 сағат бұрын
Glad to see you got it running again. I had a similar experience when reviving one of my 1M PPros, they have significantly weaker pins than the ceramic 256k/512k models. I think these are machined from a rod of brass, while the others are gold plated copper.
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Absolutely agree! Those pins on the black-top model are very fragile. And seems like those pins are one-way bend only. You can't bend most of them back - they'll all break.
@weedmanwestvancouverbc9266
@weedmanwestvancouverbc9266 Сағат бұрын
I remember I was ham fisted in getting a CPU socket, and I used one of those mechanical pencils that use the bare legs that were like 5 mm and they were a perfect fit to straighten the pins
@jeffm2787
@jeffm2787 15 сағат бұрын
I've had a few 1M Pentium Pro's, always ran them on dual socket boards. Fun stuff back in the day.
@jaysonl
@jaysonl 11 сағат бұрын
Wow. Amazing job with the soldering.
@lctasca
@lctasca 14 сағат бұрын
11:40 thriller background music... 🤣
@Stratotank3r
@Stratotank3r 11 сағат бұрын
Perfekt! Geduld zahlt sich aus! Leider habe ich keinen 1MB Ppro in meiner Sammlung aber immerhin einen Slot2 Xeon. Ebenso fehlt ein PentiumII-Overdrive für Sockel8. Wenn die Pins so dünn und empfindlich sind, probier doch mal die Dinger punktuell anzuwärmen, damit sich das Metall etwas entspannt und nicht bricht. Jetzt auf jeden Fall Benches mit Pentium 233MMX gegen PPro in allen Cachestufen und P2-233.
@Alcochaser
@Alcochaser 12 сағат бұрын
Sweet. You would not believe how many of these things labored away in quad or dual CPU boards, well into the P3 era. These were certainly Server CPUs. The replacement for these was the SLOT 2 Pentium II Xeon.
@r4z4m4t4z
@r4z4m4t4z 16 сағат бұрын
at first look i also thought the pins werent too bad. great work, easy for you. bios flash was a little scary.
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Yes, the pins are quite easy to fix. There's a lot of space between them. Indeed, that BIOS flash was scary! Good that it worked.
@stefanmisch5272
@stefanmisch5272 16 сағат бұрын
Congratulations. Really good job. Also cool from you for using a switch on the ATX front panel connector.
@Xpun-oi2zz
@Xpun-oi2zz 8 сағат бұрын
I have never seen a black Pentium Pro. And your soldering skills are very impressive. Great job.
@knightsun2920
@knightsun2920 16 сағат бұрын
I always wanted a dual CPU computer in the day, finally got one in the socket1366. One motherboard CPU combo I would love to see is a dual socket 7 with a pare of K6-3 CPU.
@MrGencyExit64
@MrGencyExit64 8 сағат бұрын
Impressive stuff. I basically just write-off CPUs with any kind of deranged pins, the amount of frustration from such delicate work isn't worth it. Really cool to see what successful CPU repair _can_ look like, lol. I'll never experience the joy myself, but can appreciate seeing others triumph.
@SidebandSamurai
@SidebandSamurai 8 сағат бұрын
Wow you fixed that CPU. Loved watching you revive this old cpu
@NorbertdeRooy
@NorbertdeRooy 15 сағат бұрын
Really awesome. I always loved the Pentium Pro, I found it such an awesome CPU especially using multiple sockets. truth be told I have never seen the 1MB version IRL.
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Ha, that would be a nice find at the scrapyard - a dual PPro board! I do have two matching ceramic PPros that would probably work as well! This black-top 1MB model is really nice. More videos to come in the future 😄
@caleblancaster5471
@caleblancaster5471 16 сағат бұрын
That bios update: Yikes!!!
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Yeah, that was quite scary... I'm glad it worked!
@wskinnyodden
@wskinnyodden 10 сағат бұрын
An empty mechanical pencil tip will do wonders to straighten these CPU pins, you should try it. Put the pin inside up to the first bend then straighten it enough to push it in to the next bend and straighten again, repeat until you get the whole pin inside and can straighten it all.
@teknologyguy5638
@teknologyguy5638 14 сағат бұрын
Nice work, thanks for sharing. Happy to see this recovery completed. Hopefully I will be able to flex some similar skills like this in the future.
@bitsundbolts
@bitsundbolts 10 сағат бұрын
I'm sure you can! Good luck!
@Ale.K7
@Ale.K7 10 сағат бұрын
Beautiful job. Nice to see this great CPU being rescued!
@RosieBee463
@RosieBee463 3 минут бұрын
I used to work for a Geek Squad warranty fulfillment center during the days of the Athlon 64. Our parts department was so careless, they would send CPUs to the repair line in loose plastic bags with no protective foam and no anti-static bag. They were probably stored that way in a bin I guess. By the time they made it to the repair line, the pins were all bent to hell and I really had no option except to waste 20 minutes straightening them out with a pocket knife. And I had to replace a lot of those Athlons, as I recall they had some problem with the onboard memory controller. Lucky I never had to re-attach any pins like this!
@CheesyX2
@CheesyX2 14 сағат бұрын
I always use a mechnical pencil (the ones you use in school for geometric drawing, i live in austria so please don't ask what they're called in english, we call them Druckbleistift), the tip of those pens fit perfectly onto the pins and the pencil gives you very good yet controlled leverage on the pins (it also fits perfectly between them so you don't nudge another pin accidentially). The pencil method never failed me on bent pins.
@ajdothack
@ajdothack 13 сағат бұрын
Amazing video love your pin repair techniques
@Kirill_Konovalov
@Kirill_Konovalov 10 сағат бұрын
This is a wonderful job done. And a great and rare CPU!
@VicVlasenko
@VicVlasenko 7 сағат бұрын
I use syringe needles for straightening pins - it is much more convenient than a toothpick: - find the needle of the right size (one that just slips over the pin); - clip off the tip (do not mash it); - put the needle over the pin and bend it back. For thick pins of older CPUs a mechanical pencil can be used instead of needle.
@AceMcCrank
@AceMcCrank Сағат бұрын
In the past, I've found the best tool for bent pins is a mechanical pencil, and to make sure the pins have been warmed up first to minimize cracking. Not too hot to melt the mechanical pencil, but like, hair dryer warm.
@Adrian_Finn
@Adrian_Finn 9 сағат бұрын
You could also the mechanical pencil trick, just remove the graphite and slide the pencil over the pin and you can easily use it to straighten the pins. You managed it though, wonderful work.
@mesterak
@mesterak 16 сағат бұрын
Amazing repair thank you for sharing 👍
@bikeforever2016
@bikeforever2016 11 сағат бұрын
Awesome rescue.
@damouze
@damouze 12 сағат бұрын
36:58 It is highly likely that the CPU threw an exception, without there being a handler for it. I would run it with EMM386 or something similar loaded into memory. My guess is that DOS will then bail out with exception 6 or something similar, since it is, technically, trying to execute an invalid instruction.
@daoutbox9884
@daoutbox9884 6 сағат бұрын
An invalid opcode 06, or general protection 0D, run these in real mode. And patch in an exception handler. Lucky you still have interrupt enabled STI then youll need cold boot if interrupt off CLI
@idahofur
@idahofur Сағат бұрын
Those older cpu's was nice. Big fat pins to solder broken one's back on.
@RuruFIN
@RuruFIN 14 сағат бұрын
The master of pin-fixing strikes again. :)
@bitsundbolts
@bitsundbolts 10 сағат бұрын
Haha, thanks 👍
@SidneyCritic
@SidneyCritic 8 сағат бұрын
5:50 On that 850, the pins have small heads so you should be able to solder them back on, it's just that you'll have to carefully soldermask that top copper layer. See if that top layer is connected to a GND pin, or just scratch off some soldermask, then test continuity to it after soldering. Maybe even sand it back further for more isolation/clearance.
@Mazlem
@Mazlem 7 сағат бұрын
You might know this, but the 1mb PPro was not flat and needed a special heatsink to match. I sanded one down years ago but didn't have a way at the time to check any difference in temperature.
@naturelmania
@naturelmania 16 сағат бұрын
Awesome cpu repair video. As always good to watch but just where is background music??? 😢
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Eh, I need to put some smoothing jazz again. I'll keep that in mind for the videos after the next one.
@wettuga2762
@wettuga2762 7 сағат бұрын
Now that's what I call a save! I think the BIOS could have been flashed normally by booting from the floppy. The jumper being called BIOS Recovery leads me to believe it's only meant as a safeguard in case the board doesn't boot normally due to BIOS corruption. In most benchmarks, the Pro 233 completely crushes the 233 MMX and it's very close in performance to the Pentium ii 233. If only I had a Pentium Pro 200 instead of a sad Pentium 166 without MMX when I was young...
@MeneGR
@MeneGR 8 сағат бұрын
Wow great fix for a great CPU! Am I the only one that got dizzy with the fast movements under the microscope?
@nathanahubbard1975
@nathanahubbard1975 11 минут бұрын
I remember using a fine size mechanical pencil (without the lead obviously) to easily straighten the pins on chips like these.
@minombredepila1580
@minombredepila1580 15 сағат бұрын
Quick suggestion that worked for me: when the crack is just between the pin and the base (like two of yours), I put some solder on it FIRST to create a solid base and then straight it up in second place, so the weak base do not break when you straighten the pin, and it will be already fixed. It's just a suggestion that worked for me...
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Interesting. That would definitely work if the pin isn't too far bent so it would bridge with the solder. I might have been able to save some of the original pins that way. But I'm still happy that the PIII pins are a perfect match as well.
@minombredepila1580
@minombredepila1580 10 сағат бұрын
@@bitsundbolts You are correct. Happy that you were able to save the processor !!! Those used to cost an arm and a leg in 1997-98. Never seen one in person. Hope to see it back in another video ;-)
@xephorce
@xephorce 13 сағат бұрын
awesome job. thank you for the great video. way to save these old chips. so what are the plans for this little gem?
@bitsundbolts
@bitsundbolts 10 сағат бұрын
Most requests are to run some benchmarks on Windows NT/95/98. It may show the strength and weakness of this massive CPU.
@jbinary82
@jbinary82 9 сағат бұрын
​@@bitsundboltsit might perform good for some cpu demanding games, like pod?
@shaunclarke94
@shaunclarke94 14 сағат бұрын
The toothpick method puts all the force on a single weak point which is why it's so destructive. If you can get the pliers to grip the pin it can provide some bracing and support as well as spreading the load.
@ToTheGAMES
@ToTheGAMES 12 сағат бұрын
The problem is that the metal already is work-hardened by the initial bend. The bending back will fracture it more, no matter the method, I think.
@bitsundbolts
@bitsundbolts 11 сағат бұрын
I tried this same method on a ceramic PPro - no issues there. It must be the material used for those pins that make them so weak.
@DreamsOfTheMind-video
@DreamsOfTheMind-video 16 сағат бұрын
Nice job again! Love it!
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Thanks!
@Megatog615
@Megatog615 8 сағат бұрын
at first i really liked that heatsink+fan combo but after you showed the thermal camera footage it's obvious that it kinda sucks. it seems like the airflow doesn't get passed over the edge fins.
@wkrick
@wkrick 3 сағат бұрын
Do you ever "load setup defaults" after flashing a new BIOS? I remember that being a recommended procedure due to possible differences in the layout of saved user settings between BIOS revisions.
@viscountalpha
@viscountalpha 58 минут бұрын
i've had good luck fixing pins with a mechanical pencil and using it as a pin straightener. Going slowly and gently bending pins and straightening them slowly.
@unmountablebootvolume
@unmountablebootvolume 15 сағат бұрын
That P3 is actually quite likely to still work even with the damage, as this is a single layer chip (like nearly all modern silicon, as far as I know multi-layer is still very experimental), so only the bottom few nanometers are actually relevant, the rest is just a piece of glass. So if you can fix those pins (maybe with the help of uv solder mask to prevent solder from connecting to the wrong places), there is a good chance it still lives. I have actually seen worse chips still work, including some fairly modern gpu (3060 I think), which is still completely fine despite the damage.
@bitsundbolts
@bitsundbolts 11 сағат бұрын
I tested all those chips before I put them in a box for scrap pins. I'm afraid, this chip is dead. Some have visible cracks through the entire die. But you're right, from chipped corners, you can't tell that a CPU is dead. I have many CPUs with chipped corners that work perfectly.
@unmountablebootvolume
@unmountablebootvolume 10 сағат бұрын
@@bitsundbolts That's unfortunate, but it is vintage hardware, so not entirely surprising. Interestingly, I remember the P3s to be fairly reliable (unlike xp-era AMDs and celerons, and more recently the ryzen 3600), but shorted voltage regulators and bad ATX supplies weren't rare back then, so that might have been it. But whatever broke it, at least its parts help you save other chips, so I guess that's the best possible ending for a dead CPU.
@GadgetUK164
@GadgetUK164 13 сағат бұрын
Brilliant repair!!!
@johng.1703
@johng.1703 13 сағат бұрын
I really did love building servers with the Pentium Pro 200, but I did prefer the ceramic one over the black board ones.
@lpopescu07
@lpopescu07 7 сағат бұрын
Amazing work and video! One question: Pentium Pro heatsink and cooler seems impossible to find...what alternatives/compatible we have for this issue?
@SeanBZA
@SeanBZA 16 сағат бұрын
Those old pins were fully formed, not just a cut and polished wire.
@johnmay4803
@johnmay4803 16 сағат бұрын
you made that look easy pal good job
@bitsundbolts
@bitsundbolts 11 сағат бұрын
I guess I had some good practice before! This was quite easy. Thanks 😊
@johnmay4803
@johnmay4803 10 сағат бұрын
@@bitsundbolts i bow to your skill my good man
@AndrewFremantle
@AndrewFremantle 16 сағат бұрын
I'd be interested to see performance comparisons between the PPro and a Pentium(/MMX?) PPro was garbage at running 16-bit code, just how much of a difference is actually there? Running a pure 32-bit environment (say, Unreal on WinNT), what performance difference is there?
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Good idea. I'm curious too. Sounds like a future project!
@Bedfford
@Bedfford 8 сағат бұрын
Fantastic. Microscope needed now.
@tony359
@tony359 8 сағат бұрын
Hello Mr pin straightener!
@chrislowe3799
@chrislowe3799 6 сағат бұрын
The PPro 1M are also stable at 3.5 x 66MHz = 233MHz (if your board supports 3.5x). I have two of these PPro 1M running on a Tyan S1662 board at 233MHz. :)
@stevvieb
@stevvieb 13 сағат бұрын
The pin whisperer strikes again
@speelydan
@speelydan 14 сағат бұрын
8:46 (ish) - I remember reading on some forum somewhere, someone saying they had very good luck un-bending CPU pins by using a mechanical pencil with the lead removed. I suspect that might be too small for pins this size, though.
@pvc988
@pvc988 9 сағат бұрын
I just had an idea. I wonder if soldering tip made out aluminium would help with repairs like this. It would be shaped like a normal conical tip but with the tip shaved off and hole for the pin drilled. It should also have very litle thermal mass. It would be used by placing replacement pin inside the hole and adding solder paste to the CPU. After putting both parts together the paste should melt and create a joint. Then the iron should be cooled down as fast as possible (to avoid CPU damage) while still holding parts together. The fact that the tip is made out of aluminium should make it impossible for solder to wet the tip and this way making it possible to be removed while cold. Small thermal mass would help with cooling it down quickly with freeze spray. If the joint is not satisfactory it could be then reflowed with extra flux with regular iron or hot air. I need to get my hands on some scrap PGA chip and try it.
@datainoit
@datainoit 10 сағат бұрын
I feel like holding my breath when you solder the pins
@MSteamCSM
@MSteamCSM 16 сағат бұрын
Have you tried to heat up bent pins with soldering iron and then try to unbend them? Maybe heat will help with brittleness...
@bitsundbolts
@bitsundbolts 11 сағат бұрын
I tried this on 486 CPUs. Unfortunately, heating pins doesn't help much - if at all. Those metal pins would require a lot more heat which most likely will damage the plastic body of the CPU.
@mstrVLT
@mstrVLT 15 сағат бұрын
I think (just a guess) that silver-containing solder wire (Sn62Pb36Ag2) is slightly better in such situations. low soldering temperature, greater strength. Anyway, excellent work!
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Interesting. I use my regular solder wire and it worked white well. Maybe some day I'll be able to test something like that.
@TSteffi
@TSteffi 11 сағат бұрын
Don't let those chipped corners fool you. I have at least one AMD chip from the Athlon XP days that has a corner chipped way worse, but still works perfectly fine. I don't think they put transistors all the way to the edge of the die. If only to allow for some tolerances when cutting the wafer.
@RealGengarTV
@RealGengarTV 7 сағат бұрын
An interesting note about the pentium pro line of CPU's is that they are true 32 bit but with a 16 bit translation layer in a time where consumer cpus and windows itself were 16 bit. This CPU should work better with Windows NT or Unix/Linux.
@W.D.Keeper
@W.D.Keeper 12 сағат бұрын
Hi! Use pen refill for straightening bent pins and you'll notice how much better it is than pliers
@xrror
@xrror 16 сағат бұрын
tl;dr - I think the jumper you moved to flash was actually for BIOS recovery mode - no harm done but it skips any verification and is why you didn't see anything during the flash. If you had just normally booted from the floppy w/o moving that jumper, I think you'd get a more normal experience of it loading a flash util and you see progress on screen? Assuming this board is like how many later Intel reference boards are the jumper you moved to flash was actually the "bios recovery mode" which I think was intended to be used if you accidentally bricked the mobo (assuming the BIOS boot block still lived). I know of it because with at least with Intel socket 7 and later Slot 1 boards you could also use that to "cross-flash" between various OEM "flavors" of firmware - for instance if you wanted to change from the Intel branded to Gateway branded bios. Sometimes OEM versions (like Gateway) would fix things like sleep or resume that the Intel "original" didn't work right. Note that since it seems to skip verification yes you can also blind flash totally wrong firmware too which can be entertaining - I think as long as the boot block still lives you can recover from that also, but obviously not recommending you test that unless you have an eeprom programmer handy =)
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Hm, interesting. I didn't try to flash the BIOS without changing the jumpers. I think I read this procedure in the manual. I really don't want to experiment with those BIOSes - they're those flat BIOS chips that would be a pain to remove and flash. Good that it worked like this too.
@Lilithe
@Lilithe 15 сағат бұрын
Yeah I'm not sure. It's been forever since I coded in x86 assembly for DOS, but you might need to do some kind of call to return control to DOS. It's clearly not hung if you can Ctrl+Alt+Del.
@bitsundbolts
@bitsundbolts 11 сағат бұрын
I thought I did add the fifth byte to the code that should return, but it was just weird that it didn't exit properly. It works under Windows though.
@daoutbox9884
@daoutbox9884 5 сағат бұрын
If returning to DOS you have to call INT 21 exit to dos function. Really old dos let you exit with INT 20. Windows likely handles bad exits silently.
@Pulverrostmannen
@Pulverrostmannen 7 сағат бұрын
13:33 Dude the whole base of that pin is moving inside the CPU structure!! I wonder why? is the pin like recessed into the CPU maybe 🤔
@Jordan4Ibanez
@Jordan4Ibanez 20 минут бұрын
That was incredible
@jirikajzar3247
@jirikajzar3247 16 сағат бұрын
Yet there are people who destroy perfectly fine Pentium Pros for gold...
@iamperplexed4695
@iamperplexed4695 15 сағат бұрын
Gold is more valuable.
@unmountablebootvolume
@unmountablebootvolume 15 сағат бұрын
Makes me want to puke. And they trash a rare, valuable piece of computer history for what? Maybe $5? Idiots!
@iamperplexed4695
@iamperplexed4695 15 сағат бұрын
@@unmountablebootvolume 5 dollars is A LOT of money in some places of the world.
@unmountablebootvolume
@unmountablebootvolume 15 сағат бұрын
@@iamperplexed4695 But much less than the $70+ that a working pentium pro is worth.
@iamperplexed4695
@iamperplexed4695 14 сағат бұрын
@unmountablebootvolume I am just going to assume that you don't know about the recycling and reclamation methods that electronics use and the path through the word that they follow.
@Blade2086
@Blade2086 14 сағат бұрын
Just an idea - wouldn't it be easier if you heat up the pin before attempting to bend it? I think this way the material will be softer and more flexible and perhaps not break? Otherwise amazing video as always!!!! :-)
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Unfortunately, extra heat doesn't help. Those pins would require a lot more heat to get softer. I tried that on a 486 CPU, but that might also be a different material there.
@阿綸的全勳學院
@阿綸的全勳學院 15 сағат бұрын
Good job!
@DJSammy69.
@DJSammy69. 11 сағат бұрын
Retro Web is magical place!
@nalinux
@nalinux 9 сағат бұрын
I think using low melting solder for SMD would be a good choice, instead of regular soldering wire.
@Consequator
@Consequator 15 сағат бұрын
10:20 That's because you jinxed it, that's how that works :)
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Yeah, I wasn't aware that those pins on this CPU are so fragile. They're very different from their ceramic brothers.
@britlion
@britlion 15 сағат бұрын
I always thought the best tool for this job was a mechanical pencil with no pencil lead in it - it's a tube that supprts the pin fairly well as you bend it back. Also I'd think getting the pins hot would help them bend more than break?
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Yes, a mechanical pencil does work. Unfortunately, it would block the view white a bit when I'm working under the microscope. That is why I decided to use the pliers. They also work very well! I tried heating pins on a 486, unfortunately, I never noticed a difference when heating up those pins. It just makes it harder to work on the CPU because it also gets hot.
@NLTheGreater
@NLTheGreater 10 сағат бұрын
Extra tip, use a credit card on the not to hard bend pins.
@KG4JYS
@KG4JYS 16 сағат бұрын
Seems like it might be helpful to warm the chip up before straightening pins. Maybe 150c on a hot plate
@bitsundbolts
@bitsundbolts 11 сағат бұрын
I tried to hear pins on a 486 CPU before. It doesn't seem to make any difference - but it would make working on the CPU a lot harder because of the heat - which could also destroy the CPU.
@drewnewby
@drewnewby 11 сағат бұрын
Once the metal has exceeded it's yield point, it's strain hardened. Temperatures high enough to reset it's plasticity would do too much harm to the die.
@emilypeters8888
@emilypeters8888 16 сағат бұрын
Nice first time here excellent
@bitsundbolts
@bitsundbolts 11 сағат бұрын
Hello and happy to hear you found your way here! Thanks for watching
@ayan.debnath
@ayan.debnath 16 сағат бұрын
You could have added a horror BG music :P
@billchildress9756
@billchildress9756 3 сағат бұрын
My Brother has a dual pentium pro board that I'm trying to get him to set up again. BTW, He has one of those 1M chips that I gave him about 20 years ago that is suffering from the same problem.
@RussellSenior
@RussellSenior 3 сағат бұрын
what model knipex pliers are those?
@joseledo9431
@joseledo9431 16 сағат бұрын
👍Good Job !
@sk0mi
@sk0mi 6 сағат бұрын
Those players are great legit tool for straightening cpu pins. I used many improvised tools for straightening pins on cpu, like blades, credit cards etc., the best results I got was with techincal mechanical pencil with which use 0.5 mm graphite inserts, like Staedtler graphite mechanical pencil or other brand same product, I don't know how you call those in English... Anyways the pencil is long enough to be good lever, so you get to make very short or long moves slowly and get pins back at originial position...long industrial syringe needle can be good, I mean any kind of "long enough very thin pipe like object" could do the job imo, it's just those technical mechanical pencils are like they are made for the job 🙂 🤷‍♂️
@quittessa1409
@quittessa1409 13 сағат бұрын
I've got a matched pair of these :)
@therealjammit
@therealjammit 2 сағат бұрын
If you type in "sys c: a:" it will always copy the system files from "C" to "A" regardless of the drive or directory you're in.
@matthewday7565
@matthewday7565 13 сағат бұрын
Why is the L1cache not showing up on READ - the line is flat up to 1024 ?
@awilliams1701
@awilliams1701 14 сағат бұрын
I don't know if you could see that Ohhhh yes I saw that. That was nice
@Phil-D83
@Phil-D83 13 сағат бұрын
Crazy expensive in the 90s
@awilliams1701
@awilliams1701 12 сағат бұрын
So according to wiki this bug is supposed to be an exception if properly implemented. So I'm wondering if dos being frozen is a normal exception and then windows just flat out catches it. So that may actually be the correct behavior for the fix.
They fooled so many: Fake cache chips!
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