acl wrote on 2023-06-06, 10:03:

Hi, I recently bought a dual Socket 604 (P4 Xeon) workstation motherboard. Quite a deal for 20€ with two 2.8Ghz Xeon, matching a […]
Show full quote

Hi,
I recently bought a dual Socket 604 (P4 Xeon) workstation motherboard.
Quite a deal for 20€ with two 2.8Ghz Xeon, matching aftermarket coolers, 4Gb of DDR, a PCI SCSI controller and a GeForce MX...
Unfortunately, with problems and some bad caps (no boot, beeps)

Screenshot from 2023-06-06 09-37-25.png
http://www.motherboard.cz/mb/tyan/Tigeri7505S2668.htm

Yesterday, i took an hour to replace the most damaged ones, and the card now boots properly (but not yet extensively tested).

But now, should i continue and change all capacitors. Or just keep it like this ?
Because there is still a non zero chance to damage it while replacing caps. By damaging pcb traces, pads, etc...

Will probably replace the two Xeon by two 3.2GHz Gallatin 1MB for a highend 2003 dual socket system. (With FX5900 / 9800 pro ?)

i think you might be answering own question: "Because there is still a non zero chance to damage it while replacing caps."

i'd always be cautious and replace only what is checked and confirmed to be wrong for that reason, i'm not that goof at soldering either so for someone who loves it and is very skilled maybe doing a whole board in one go feels better than risking further cap failures later on, but for average skilled people it takes time and has risks of damage, so keep minimal

Partial, but in groups. Are there 3 capacitors next to the CPU socket and 1 is bulging? Replace those 3 but no need to also replace another group near the IDE connector.

- Turned off the PC
- Removed the side cover of case
- Pulled out all expansion boards
- Removed the motherboard
- Soldered 1 capacitor.
- Assembled PC

After an indefinite period of time - repeat.

If you like the process itself, then you can change one at a time.

usually heavy working caps in hot places die first (cpu regulator near cpu socket or under a radiator like in your picture), and replacing just those will fix the board for a long time

gerry wrote on 2023-06-06, 10:10:

i think you might be answering own question: "Because there is still a non zero chance to damage it while replacing caps."
i'd always be cautious and replace only what is checked and confirmed to be wrong for that reason, i'm not that goof at soldering either so for someone who loves it and is very skilled maybe doing a whole board in one go feels better than risking further cap failures later on, but for average skilled people it takes time and has risks of damage, so keep minimal

konc wrote on 2023-06-06, 10:51:

Partial, but in groups. Are there 3 capacitors next to the CPU socket and 1 is bulging? Replace those 3 but no need to also replace another group near the IDE connector.

rasz_pl wrote on 2023-06-06, 12:25:

usually heavy working caps in hot places die first (cpu regulator near cpu socket or under a radiator like in your picture), and replacing just those will fix the board for a long time

Thanks 👍
There as a few caps with a very not practical placement.

I replaced something like 5 or 6 caps. 1000uf 10v.
At least the two near the cmos battery
and three more around the last two PCI slots.

I may replace a few more but not all.

shevalier wrote on 2023-06-06, 11:28:

- Turned off the PC - Removed the side cover of case - Pulled out all expansion boards - Removed the motherboard - Soldered 1 ca […]
Show full quote

- Turned off the PC
- Removed the side cover of case
- Pulled out all expansion boards
- Removed the motherboard
- Soldered 1 capacitor.
- Assembled PC

After an indefinite period of time - repeat.

If you like the process itself, then you can change one at a time.

I have a lot more motherboards than cases 😁
I almost never use cases. Only for systems i use regularly.

rasz_pl wrote on 2023-06-06, 12:25:

usually heavy working caps in hot places die first (cpu regulator near cpu socket or under a radiator like in your picture), and replacing just those will fix the board for a long time

That's my experience too, replace the caps around CPUs where hot air is blowing on...on all the (3) motherboards I recapped these were the dead ones.