Тёмный

Leaked battery & corrosion: My attempt to restore this 386 motherboard! 

Bits und Bolts
Подписаться 19 тыс.
Просмотров 7 тыс.
50% 1

This SOYO 019L1 had a BIOS battery that leaked and corroded components and traces around the battery. In this video, I will restore the motherboard and remove the damage caused by the battery. I will clean the board, use white vinegar to neutralize the existing corrosion, and fix issues with the solder mask above the traces. If the board works after all this work, I will run a few benchmarks to check if the board performs as expected. This motherboard will be safe to store for many years without risking further damage.
Supported by PCBWay: pcbway.com/g/lF253I
PCBWay provides full feature custom PCB prototyping services, 3D printing, and much more. Check them out using my referral link above and get a 5 USD welcome bonus when you sign up as a new customer!
AliExpress: Mechanic Solder Mask
s.click.aliexpress.com/e/_Ddy...
(this is the exact item I am using)
Amazon US: Solder Mask
US 4pcs + UV light: amzn.to/470ISRw
DE 6pcs: amzn.to/3Dr49WU / amzn.to/43Av6lC / amzn.to/44XIbGB
DE Green + UV light: amzn.to/3O9Xaqa
UK: 6pcs: amzn.to/44GEm92
UK: Green + UV light: amzn.to/452Hc8n
TheRetroWeb (SOYO 019L1):
theretroweb.com/motherboards/...
CPU Galaxy: 286 Board Restoration & Testing [Leaking Battery and Exploding Caps]
• 286 Board Restoration ...
Article about replacing leaking batteries from old motherboards:
pc-restorer.com/replacing-cmo...
00:00 Intro
01:10 PCBWay
01:42 SOYO 019L1
02:38 Remove connectors
03:33 Initial cleaning
05:33 Remove solder mask
07:24 Tinning copper traces
07:47 New solder mask
08:47 Reassemble and build
11:12 Power on
14:36 Install DOS and conclude

Развлечения

Опубликовано:

 

24 июл 2024

Поделиться:

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист
Посмотреть позже
Комментарии : 79   
@drPeidos
@drPeidos Год назад
Using an engraving pen is a great idea to remove small areas of mask. I should buy one. Thanks.
@bitsundbolts
@bitsundbolts Год назад
It worked quite well. I got this idea from RU-vid channel NorthridgeFix.
@OpenGL4ever
@OpenGL4ever Год назад
Yes, i played X-Wing and its successor Tie Fighter in 1993 and 1994. I had the floppy disk versions and i completed both games. For X-Wing i also bought the two Addons B-Wing and Imperial Pursuit. With X-Wing i've ruined my joysticks multiple times. After the first one broke, I bought a second one. Until that one broke too. Then I changed my strategy and unscrewed the joystick and tried to fix it. That was one of my first repair attempts, I was still a child. The joysticks were constructed quite cheaply and did cost less than 40 DM. The dealer didn't have any others for sale either. Back then the choice was very limited. The cables from the ground plate to the buttons on the stick were torn apart. So I routed new cables through the very tight stick. But they were too stiff, so that the joystick was quite stiff and uneven. Fortunately, at some point a new joystick the CH Flightstick was offered. It had to be good, because it was three times as expensive at over 120 DM. This joystick has lasted far longer. But since it used 50k potentiometers with sliding contacts for the axes, these also broke at some point. Luckily those were a lot easier to repair because I just had to buy new potentiometers and swap them out. I did that 2-3 times and then also played through Tie Fighter with this joystick. The CH Flightstick was basically a good joystick, but it only had 2 buttons and 2 axes and lacked USB and was therefore no longer suitable for later games. Oh, one more thing. I also bought X-Wing Alliance sometime around the turn of the millennium, but I haven't played through it until today. I didn't have the time and inclination for that anymore. But I still have my old savegame files, so I could finish the game at any time.
@kasimirdenhertog3516
@kasimirdenhertog3516 Год назад
I played Star Wars: X-Wing vs. TIE Fighter from 1997 for many, many hours. It was the first game that I played in multiplayer over the internet. Microsoft offered the Zone as an online matchmaking service/community and although it could be rough getting it going with dial-up modem, it was lots of fun.
@the_beefy1986
@the_beefy1986 Год назад
I spent countless hours on X-Wing, and before that, Rebel Assault. I re-acquired them a year or two ago when all Star Wars games on Gog went on sale. :)
@OpenGL4ever
@OpenGL4ever Год назад
I still have the original Rebel Assault CD-ROM. But i sold my DOS X-Wing games in the 90s. I do still have X-Wing Alliance on CD-ROM and of course i also bought the sold DOS X-Wing games on GOG again. Sadly they had a quite nice packaging box. That's something you don't get with GOG.
@T3hBeowulf
@T3hBeowulf Год назад
I completely agree with the "bios must be blue" sentiment. Great job! It's always fascinating to watch this hardware come back up life.
@tony359
@tony359 Год назад
I did not know those ugly colours could be changed!!!! LOL!
@christopherjackson2157
@christopherjackson2157 Год назад
I've noticed corrosion tends to follow copper traces and vias through a pcb. I'm not sure whether this is capillary action or just a result of the chemistry. Its astonishing how far it can travel along a trace without any effect on the intervening sections of pcb
@KrzysztofC-1
@KrzysztofC-1 Год назад
Exactly, there was such board recently on Adrian's Digital Basement channel. Corrosion travelled through traces throughout entire board. I'd assume not fixable easily without hundreds of patch wires.
@indimopi
@indimopi Год назад
Excellent repair! I did play x-wing as a kid but never managed to finish the first level. I just remember the first fmv.
@OpenGL4ever
@OpenGL4ever Год назад
I destroyed the death star. It was so much fun, that i repeated that mission several times. The best thing you can do, when you are inside the death star trench is to put all power into your speed and fly at 400 speed to the goal. To reach that speed you have to stay in the trench. It doesn't work if you leave it.
@catvaska1627
@catvaska1627 Год назад
Nice Cyrix math on board! ))
@helldog3105
@helldog3105 Год назад
Not only is an external battery connector an option, but there is a PCB you can make called not a varta which plugs into where the Varta Battery would go and has circuitry to allow the use of a cr1220. It's a cool project.
@JamesPotts
@JamesPotts Год назад
I never played X-Wing, but I loved Tie Fighter.
@FritzchensFritz
@FritzchensFritz Год назад
I have no experience with 386 bios menus, but I really like the colorful default colors. Clean works as always!
@hernantuduri3102
@hernantuduri3102 Год назад
Great job!, and you remember me when I was young and play that game. 😅
@ruthlessadmin
@ruthlessadmin Год назад
Always a joy to see an old board brought back to life.
@upgrade1373
@upgrade1373 Год назад
I hope you can keep this machine running for many years
@allezvenga7617
@allezvenga7617 Год назад
Thanks for your sharing
@SianaGearz
@SianaGearz Год назад
I've never actually seen even a badly abused, dead and swollen cr2032 leak! And it's easy enough to re-engineer the circuit so it does't try to charge it. I'm also fairly confident in NiMH replacement cell types being OK in the leakage department. It's spectacularly difficult to leak them. The leaky cells were all NiCd. But it's also perfectly fine to have a different risk assessment.
@OpenGL4ever
@OpenGL4ever Год назад
I agree on the NiMH. If they leak, then they leak hydrogen. That's a gas and shouldn't be a problem for the motherboard. I would never trust NiCD, Zinc-carbon and Alkaline batteries, they tend to leak and if they do so, it will get a mess. But i never had this with NiMH cells.
@rodhester2166
@rodhester2166 Год назад
these old boards and works of art.. thanks for the video.
@3dfxvoodoocards6
@3dfxvoodoocards6 Год назад
Nice, like ! Those old 386 / 486 motherboards look so different from later ones from the Pentium 2 / 3 era.
@OpenGL4ever
@OpenGL4ever Год назад
The main reason is THT vs. SMD. And the switch from ISA to PCI.
@boardernut
@boardernut Год назад
good tips, great video.
@benjaminwirth5192
@benjaminwirth5192 Год назад
Very nice. Good job 👍
@bitsundbolts
@bitsundbolts Год назад
Thank you!
@pvc988
@pvc988 Год назад
Replacing solder mask after tinning is not needed. Solder itself does pretty good job at protecting copper traces from oxidation.
@Michael_Brock
@Michael_Brock Год назад
The solder mask, or lacquer or transparent nail polish can add more physical structure to badly damaged traces/mobo surface, reducing chance of breaking the connection if used heavily, or accidents happening. IE the tinned trace separating from M/B. NB if I were fixing a power trace, IE higher current. I would solder a bare copper wire on top of damaged/broken solder track. And still varnish it afterwards.
@CryWarhead
@CryWarhead Год назад
You always get a like from me. Once again a perfect job, keep it up.
@bitsundbolts
@bitsundbolts Год назад
Thank you!
@Nukle0n
@Nukle0n Год назад
All those button cell holders people use have a diode so they don't recharge.
@boydpukalo8980
@boydpukalo8980 Год назад
Really cool restoration. Sadly my very first computer a Dell P90 is long gone to the obsolete electronics landfill. The 1990's were exciting times with computer advances and the new fangled thing called the internet! I got into computer just as 3D gaming became a reality with consumer voodoo hardware. Doom was mind blowing when it came out.
@GigAHerZ64
@GigAHerZ64 Год назад
As always, check if there is a MR-BIOS for this chipset on the motherboard. If there is, i strongly recommend to switch out the bios. Amongst other things, you will get support for multi-gigabyte HDDs, too.
@bitsundbolts
@bitsundbolts Год назад
Thanks for reminding me. I'm reading up on it. Would be nice to have larger HDDs and other updates!
@blackIce504
@blackIce504 Год назад
@@bitsundbolts or you could use a bootloader to get larger disks they are still on websites.
@tony359
@tony359 Год назад
oh that sounds very interesting thanks for mentioning that! I'll look up!
@asanjuas
@asanjuas Год назад
The thing is what bios not very much mr-bios outside there!!
@OpenGL4ever
@OpenGL4ever Год назад
There is a better way than a new BIOS. Just buy a SCSI Controller and use SCSI devices. They don't have that 512 MB limit and are btw much more comfortable and they also relieve the CPU of work. That's what i did in the 90s.
@raysgarage2351
@raysgarage2351 Год назад
I had this & Tie fighter . Thise games cist me a fortune in broken joysticks . . 😂
@Jack7277
@Jack7277 Год назад
love tie fighter, played it on my cyrix pr166mx in 98
@OpenGL4ever
@OpenGL4ever Год назад
Did you play the special edition version? This one came with SVGA support, texturing and gouraud shading. The original version had only VGA with gouraud shading but no texturing.
@Jack7277
@Jack7277 Год назад
@@OpenGL4ever original in vga
@dazamad
@dazamad Год назад
Im currently working on my 386. Same thing. Ive re tinned the taces and just waiting for my formal coating to arrive. Nive video Should point out i have a motherboard that only has external battery connector and it does have charging on it. It was by design i guess
@Geomanb
@Geomanb Год назад
Soldering time! 😊
@SuperHamsterGaming
@SuperHamsterGaming Год назад
I did play it on a 16mhz 386sx. Now that computer has suffered the same fate as your motherboard with a leaking battery. I hope I can fix it because it was my first PC.
@bitsundbolts
@bitsundbolts Год назад
Best of luck and hope you will succeed!
@spavatch
@spavatch Год назад
Nope, never played X-Wing. My first SW title was TIE Fighter on my cousin's P100 ;)
@OpenGL4ever
@OpenGL4ever Год назад
Tie Fighter is better, but it doesn't have a death star trench run. In X-Wing this is the last mission of the campaign.
@GuillermoReisch
@GuillermoReisch Год назад
Use fiberglass pen to remove solder mask
@bitsundbolts
@bitsundbolts Год назад
I have fiberglass pens, but to be honest, I like the engraving pen much more! Plus, it doesn't cause any health problems that come with fiberglass residue you can inhale.
@tony359
@tony359 Год назад
I have an identical motherboard which I fixed on a video on my channel. It works but every time I run DOOM, it's like one of the keyboard keys gets stuck. I attempted many things but never managed to fixed it. It would be great if I could borrow your keyboard controller chip - as the one installed is not compatible with one of the "generic" installed in similar boards. I will send you an email. Great job with the yellow solder mask, my solution was much less accurate than yours! :)
@mattparker9726
@mattparker9726 Год назад
OOOOOH maybe this can help me repair my 286.
@briangoldberg4439
@briangoldberg4439 Год назад
i played some tie figher. i was more of a dark forces fan though
@TheAtariSan
@TheAtariSan Год назад
You could had used ML2032 instead, those are rechargeable CR2032 used in the sega dreamcast
@gianniskaravasilis9464
@gianniskaravasilis9464 3 месяца назад
Thanks for sharing this! I have the exact same motherboard. The corrosion damaged the trace that connects the C2 capacitor (5:37 on your video) to the 2nd pin of keyboard controller. I fixed the trace and also removed all the components starting from keyboard connector going all the way until the resistors just right after keyboard controller. Continuity is there, no broken traces. ISA is having all the correct voltages but when using the POST analyzer card I am getting indication only on +12V rail. I am running out of ideas of what else might be broken there. Capacitors look ok. There are two transistors, both between ISA 8bit and ISA 16bit slot. I cannot identify them though. Maybe this is the problem? Any ideas how to identify them?
@bitsundbolts
@bitsundbolts 3 месяца назад
Do you get +5v and +3.3v on the AT power connector? Maybe there is a short somewhere. If you're using an ATX power supply, it should shut off due to it hopefully having an overcurrent protection. In that case, you're using an ATX to AT power adapter. Make sure all pins of the adapters work. Sometimes, the pins get pushed out from the plastic housing and they don't make proper contact. If none of this helps, then it's probably a broken trace or faulty component. I'd first try to find broken traces.
@gianniskaravasilis9464
@gianniskaravasilis9464 3 месяца назад
@@bitsundbolts Thanks for you reply, I appreciate it. I tried both AT and ATX psu with adapter. I can also measure with a multimeter all voltages on ISA which is weird since the POST card LED is not showing indication. POST card works on other boards though. Almost ready to give up on this one. I believe the problem might be in the two transistors, tried to measure them with multimeter set to diode mode, on one of them getting voltages on both directions which is wrong I think
@solar3mpire
@solar3mpire Год назад
X-wing collector CD.
@markcarson6451
@markcarson6451 Год назад
What brand is that solder mask and where did you get it? I've been looking for translucent but can't seem to find it.
@bitsundbolts
@bitsundbolts Год назад
It is called Mechanic UVH900-YY (yellow). I got a bundle with Yellow, Blue, White, Red, Green, and Black. Is this something you are looking for: "Mechanic SU3 Transparent Curing Solder Mask"
@OpenGL4ever
@OpenGL4ever Год назад
12:30 What is the name of that tool, you are using here?
@Jack7277
@Jack7277 Год назад
External battery voltage must be higher than 3.6v, afair 4 to 6 volts
@bitsundbolts
@bitsundbolts Год назад
The voltage of the battery pack I use is around 3.95v and it works fine at the moment. I thought this voltage is actually on the high side. There is nothing mentioned in the manual either.
@reidster87
@reidster87 Год назад
@@bitsundbolts If you continue to get the low battery warning during POST and would rather not, you could try using AAA alkaline cells or a four cell AAA holder with the rechargeables. There are usually two diodes in series with the external battery connection to prevent the motherboard from charging an external battery. Each diode will drop the voltage by approximately 0.7 volts. Originally, the most common external CMOS/clock batteries were the Rayovac 840 and 844. These were a cube with three rectangular, flat prismatic alkaline cells sealed inside. They had a nominal voltage of 4.5v and an initial voltage of closer to 4.7v. With two diodes in series, the CMOS/clock circuit is supplied with 3 to 3.3v from a new battery. If your fully charged 3xAAA NiMh cells are at 3.95v, that's likely being dropped to about 2.55 volts, which is close to the lower threshold of operation for the circuit.
@bitsundbolts
@bitsundbolts Год назад
After the first boot, I never got the low battery warning anymore. But I see your point. If I get the time, I will check around the battery connector and see where those traces and the supply power goes.
@BaguetesGarage
@BaguetesGarage Год назад
I use a CR2032 battery with no problems for years, the battery pack will last even more.
@usermanico
@usermanico Год назад
Guys, my copper cord doesnt absorb the tin, do I need flux?
@gianniskaravasilis9464
@gianniskaravasilis9464 3 месяца назад
Yes, you do. Apply some flux and then try to tin it. It will be like painting, the flux does all the magic and guides the solder on the copper
@Jackpkmn
@Jackpkmn Год назад
Mmm nice and early.
@krzbrew
@krzbrew Год назад
You got away rather unscattered with this board...
@bitsundbolts
@bitsundbolts Год назад
Yes, I got lucky that it was not that bad.
@krzbrew
@krzbrew Год назад
@@bitsundbolts Mine on the other hand has all kinds of damage, missing components, burnt pcb etc
@bitsundbolts
@bitsundbolts Год назад
Ouch, sounds like your board went through quite a lot!
@ninedogs2418
@ninedogs2418 Год назад
386 boards is new bitcoin
@bitsundbolts
@bitsundbolts Год назад
I should try an MS-DOS miner :) See how many hashes I get...
@Jack7277
@Jack7277 Год назад
the next step will be xt-ide on an ethernet card ))
@bitsundbolts
@bitsundbolts Год назад
Yes! Some day, I will do that :)
Далее
3dfx Voodoo Memory Upgrade Board - Revision 1.1
12:35
МЕГА ФОКУС С КАЛЬКУЛЯТОРОМ
00:33
Я ПОКУПАЮ НОВУЮ ТАЧКУ - МЕЧТУ!
39:05
Every Component of a Switch Mode Power Supply Explained
23:10
Storage Media Life Expectancy: SSDs, HDDs & More!
18:18
ROCKET that LITERALLY BURNS WATER as FUEL
19:00
Просмотров 1,5 млн
A CPU ahead of its time: The Pentium Pro
24:12
Просмотров 37 тыс.
Inside the B-17 Ball Turret
18:59
Просмотров 2 млн
Damascus Steel From Milling Chips!
15:47
Просмотров 783 тыс.
286 motherboard repair - VARTA battery leaked
49:28
Просмотров 66 тыс.
This or That 🛍️
0:52
Просмотров 11 млн