BTW , nice hdd on the floor 😁

Can you bridge the power button pins? see if it starts? don't reflow with hair drier , not worth the risk.

did you try manual fsb+volt setting ? see manual http://dlcdnet.asus.com/pub/ASUS/mb/sock370/8 … /tusl2c-104.pdf

did you reposition the CPU? clear the cmos? (with no cpu in) , plug new 3v bat?

did you clean with contact cleaner or acetone the traces in photo? did you check the continuity of the traces?

bogdanpaulb wrote on 2023-03-07, 09:51:

Area 1 is the super i/o chip near the bottom next to the last pci connector , 2 is with the ps2 ports .
You can leave the trace but that one looks bad and i had cases of the protective layer being above cooper that was already eaten by corrosion . You can scrape it on the surface with a sharp tool just to be sure that you still have cooper underneath. And if it checks out use a protective lacquer / nail polish / whatever you have at hand and does not react with cooper .

Pictures as per your request, I hope those are satisfactory:
https://imgur.com/a/KB730c4

I do not have nail polish or whatever, just acetone, ipa and lithium grease.

ediflorianUS wrote on 2023-03-07, 09:52:

BTW , nice hdd on the floor :D […]
Show full quote

BTW , nice hdd on the floor 😁

Can you bridge the power button pins? see if it starts? don't reflow with hair drier , not worth the risk.

did you try manual fsb+volt setting ? see manual http://dlcdnet.asus.com/pub/ASUS/mb/sock370/8 … /tusl2c-104.pdf

did you reposition the CPU? clear the cmos? (with no cpu in) , plug new 3v bat?

did you clean with contact cleaner or acetone the traces in photo? did you check the continuity of the traces?

I can do that but if there is a short it will blow up something...

I didn't try the manual fsb+volt settings because motherboard didn't start anymore
Reposition and switch cpu and ram was tried before open the topic. Clear cmos is not possible since the jumper is missing but without the lithium battery it gets cleared easily.

I cleaned the traces with ipa, no alcoohol if there is a corrosion that goes on it should be wise to understand if it is acid or basic, I doubt acetone will be of any use?

how can it blow up anything more than the button ? it's same thing , use a button if you are more comfortable. Seems a ground thing somewhere or a failing part. Take out a jumper from your hdd or dvd-cd drive temporary , you need all jumpers appearing in manual (for bios clear you only need a few seconds of contact of the pin's). set the fsb at 66 , and voltage to stock for chipset manually then 3.3v se if it starts (pages 18-21) . For God's sake mount a battery , it's 3 v , even 12v won't blow up anything.

Use acetone , brake cleaner , wd40 , or best contact cleaner(car contact cleaner or I use DUE...CI Electronic contact cleaner G-20 or R10 or R11) you can use vinegar + alcohol to evaporate if nothing else.

not sure lithium grease is wise to use , that's for cars , and may traspher electricity.

Nemo1985 wrote on 2023-03-07, 01:49:

Resistance resistance between pin 4 and ground is 0.535 fixed value.
Resistance pin4 to ground: https://youtu.be/7QS1SPjUz9o

we went from short to 1.5Kohm 😀

Nemo1985 wrote on 2023-03-07, 01:49:

Continuity between pin 1 and i\o (in this video I also show you the beep of when proper continuity is present): https://www.youtube.com/watch?v=smFxTRuoAFY
Continuity between pin 5 and i\o: https://youtu.be/y6s1i2hytz0

sadly looks right, all keyboard/mouse signals go thru 68ohm resistor pack + 4.7Kohm pullup

Nemo1985 wrote on 2023-03-07, 06:35:

I would gladly do but apparently the motherboard doesn't turn on now...

problem solved itself ;o] but seriously, I think liquid damage might be the main cause of this board slowly dying on you. Your measuring skills and lack of soldering skills might be the end of this board journey, but you could probably still recover some $ selling it "for parts/not working"

bogdanpaulb wrote on 2023-03-07, 06:39:

Then can you do this ? 'Can you measure '2'3'4'5'

on ps2 port? why pin 2?

bogdanpaulb wrote on 2023-03-07, 06:39:

('5' is next to '4' and not the jumper)

?

ediflorianUS wrote on 2023-03-07, 09:52:

BTW , nice hdd on the floor :D […]
Show full quote

BTW , nice hdd on the floor 😁

Can you bridge the power button pins? see if it starts? don't reflow with hair drier , not worth the risk.

did you try manual fsb+volt setting ? see manual http://dlcdnet.asus.com/pub/ASUS/mb/sock370/8 … /tusl2c-104.pdf

did you reposition the CPU? clear the cmos? (with no cpu in) , plug new 3v bat?

did you clean with contact cleaner or acetone the traces in photo? did you check the continuity of the traces?

You can't 'reflow' with a hair drier not in a million years but you can use it to evaporate faster ipa in case some went under the south bridge.

bogdanpaulb wrote on 2023-03-07, 06:39:

Then can you do this ? 'Can you measure '2'3'4'5'

on ps2 port? why pin 2?

bogdanpaulb wrote on 2023-03-07, 06:39:

('5' is next to '4' and not the jumper)

?
[/quote]

Open the pic that's attached to the message , look , and you will understand ('1'2'3'4'5' are not the pins of the ps2 port but points to measure ).

Ok so I shorted the 2 gnd with the green cable, made the motherboard turns on, nothing blew up but that being said now the debug card show the infamous ---- code.
The psu turns off as soon I remove the jumper between the 2 cables.
Definitely something else has gone bad since yesterday.
ok time to put it on dishwater machine and give it a full clean before trash it...
Probably the ipa on the corroded zone did something (bad)
Could it go under the sb? I was pretty careful to "wash the corroded zone only.

About the clear cmos which happens anyway without lithium battery and connection to the psu. I probably bad explained my self, it's not possible because there aren't the jumpers:

bogdanpaulb wrote on 2023-03-07, 11:28:

Open the pic that's attached to the message , look , and you will understand ('1'2'3'4'5' are not the pins of the ps2 port but points to measure ).

sorry my bad, I only read Re: Asus board went nuts, pic was two posts above

>Probably the ipa on the corroded zone did something (bad)

IPA wouldnt do any damage, but often any disturbance of corroded area is enough to "break" the board. For this reason when fixing liquid damage its important to inform users their hardware is already garbage, even if it still seems to partially work, so there is no misunderstanding in case repair failed and someone complains "hey It still turned on when I gave it to you, you broke mah stuff give me all your moneys"

Nemo1985 wrote on 2023-03-07, 11:34:

ok time to put it on dishwater machine and give it a full clean before trash it...

You can try that , but be very careful to dry it well before testing . Leave it for a few hours somewhere hot after surface drying it to seat in a angle , rear i/o connectors at base ( there is water under the slots chips and in the connectors so it takes more time for that to evaporate ) .

bogdanpaulb wrote on 2023-03-07, 11:53:

Nemo1985 wrote on 2023-03-07, 11:34:

ok time to put it on dishwater machine and give it a full clean before trash it...

You can try that , but be very careful to dry it well before testing . Leave it for a few hours somewhere hot after surface drying it to seat in a angle , rear i/o connectors at base ( there is water under the slots chips and in the connectors so it takes more time for that to evaporate ) .

Yes, don't worry I usually shake it and then leave it for like a day or two.
Nothing that was working has ever died from that and nothing ever came back to life 🤣

Thanks

rasz_pl wrote on 2023-03-07, 11:44:

sorry my bad, I only read Re: Asus board went nuts, pic was two posts above […]
Show full quote

bogdanpaulb wrote on 2023-03-07, 11:28:

Open the pic that's attached to the message , look , and you will understand ('1'2'3'4'5' are not the pins of the ps2 port but points to measure ).

sorry my bad, I only read Re: Asus board went nuts, pic was two posts above

>Probably the ipa on the corroded zone did something (bad)

IPA wouldnt do any damage, but often any disturbance of corroded area is enough to "break" the board. For this reason when fixing liquid damage its important to inform users their hardware is already garbage, even if it still seems to partially work, so there is no misunderstanding in case repair failed and someone complains "hey It still turned on when I gave it to you, you broke mah stuff give me all your moneys"

Black to ground:
2: v0,993
3: goes up to v1.9xx and slowly increase
4: went up to v1.812
5: v0.97x slowly decrease

Red to ground:
2: begins from 0,6xx and slowly decrease
3: v0.7xx and slowly decrease
4: v0.753
5: v0.65x and slowly decrease

He has resistance to ground both ways when measuring in diode mode , something is conducting resistively to ground that shouldn't . Black lead to ground , red to measure points he should have nothing in diode mode .

Nemo1985 wrote on 2023-03-07, 11:57:

Yes, don't worry I usually shake it and then leave it for like a day or two. Nothing that was working has ever died from that an […]
Show full quote

bogdanpaulb wrote on 2023-03-07, 11:53:

Nemo1985 wrote on 2023-03-07, 11:34:

ok time to put it on dishwater machine and give it a full clean before trash it...

You can try that , but be very careful to dry it well before testing . Leave it for a few hours somewhere hot after surface drying it to seat in a angle , rear i/o connectors at base ( there is water under the slots chips and in the connectors so it takes more time for that to evaporate ) .

Yes, don't worry I usually shake it and then leave it for like a day or two.
Nothing that was working has ever died from that and nothing ever came back to life 🤣

Thanks

Pass it on to someone else, throwing away is definitive.
Maybe it is still possible to repair.

Nexxen wrote on 2023-03-07, 12:11:

Pass it on to someone else, throwing away is definitive.
Maybe it is still possible to repair.

That makes sense!

I'm willing to ship it to someone with proper skill to repair it if he is willing to posts updates of the repair process here.
@bogdanpaulb or @rasz_pl maybe?

rasz_pl wrote on 2023-03-07, 11:44:

IPA wouldnt do any damage, but often any disturbance of corroded area is enough to "break" the board. For this reason when fixing liquid damage its important to inform users their hardware is already garbage, even if it still seems to partially work, so there is no misunderstanding in case repair failed and someone complains "hey It still turned on when I gave it to you, you broke mah stuff give me all your moneys"

bogdanpaulb wrote on 2023-03-07, 12:07:

He has resistance to ground both ways when measuring in diode mode , something is conducting resistively to ground that shouldn't . Black lead to ground , red to measure points he should have nothing in diode mode .

Want to take it?

Edit: I will also send the killer card as a bonus

ediflorianUS wrote on 2023-03-07, 10:24:

how can it blow up anything more than the button ? it's same thing , use a button if you are more comfortable. Seems a ground thing somewhere or a failing part. Take out a jumper from your hdd or dvd-cd drive temporary , you need all jumpers appearing in manual (for bios clear you only need a few seconds of contact of the pin's). set the fsb at 66 , and voltage to stock for chipset manually then 3.3v se if it starts (pages 18-21) . For God's sake mount a battery , it's 3 v , even 12v won't blow up anything.

Use acetone , brake cleaner , wd40 , or best contact cleaner(car contact cleaner or I use DUE...CI Electronic contact cleaner G-20 or R10 or R11) you can use vinegar + alcohol to evaporate if nothing else.

not sure lithium grease is wise to use , that's for cars , and may traspher electricity.

Actually the start function of a ATX motherboard is used also as a protective circuitry (that's why you see pc's that turn on for a few seconds and then they shut down ) . Powering forcefully a system like that (shorting 'power on' to ground ) can lead to permanent damage/smoke .

Nemo1985 wrote on 2023-03-07, 12:34:

Want to take it? […]
Show full quote

rasz_pl wrote on 2023-03-07, 11:44:

IPA wouldnt do any damage, but often any disturbance of corroded area is enough to "break" the board. For this reason when fixing liquid damage its important to inform users their hardware is already garbage, even if it still seems to partially work, so there is no misunderstanding in case repair failed and someone complains "hey It still turned on when I gave it to you, you broke mah stuff give me all your moneys"

bogdanpaulb wrote on 2023-03-07, 12:07:

He has resistance to ground both ways when measuring in diode mode , something is conducting resistively to ground that shouldn't . Black lead to ground , red to measure points he should have nothing in diode mode .

Want to take it?

Edit: I will also send the killer card as a bonus

No , but it is my opinion that the board can be successfully repaired . Give it a wash and try it , if still not working then you can send it to someone else .

Necroware could give it a go too.
Depends on where you live, shipping could be steep in price.

Oh I forgot, I took a video of the turn on with the bridge (nothing exploded or something like that, nothing could be seen and nothing smelled as burnt):
https://youtu.be/t77o8QqyTM4

Nexxen wrote on 2023-03-07, 12:39:

Necroware could give it a go too.
Depends on where you live, shipping could be steep in price.

Honestly I prefer to give it to someone here who has been so nice to help me to troubleshoot the issues. I once sent a pm to mister necroware (scorp) and he neither replied to me.

I can understand.
😀

Thank you but , at least i , don't need it . I have a socket a with ISA for dos/win98 and QDI P6V8602/A6T-L (ADVANCE 6T) to buld a small factor one if i want . It's pointless for me to get it just to repair it and then sell it . I'm more interested of a pci FX5200/Voodoo for my QDI board .

bogdanpaulb wrote on 2023-03-07, 13:07:

Thank you but , at least i , don't need it . I have a socket a with ISA for dos/win98 and QDI P6V8602/A6T-L (ADVANCE 6T) to buld a small factor one if i want . It's pointless for me to get it just to repair it and then sell it . I'm more interested of a pci FX5200/Voodoo for my QDI board .

I will wash it in the next days then let it dry and give it another try
Thank you again

Sometimes, after insisting too much, you get burnt.
Maybe stop for a few days.