After gathering all of the information I can handle I still have some questions. Just too much information to process. I know I'm in for some abuse over the brand of board but it is what it is...
I have an Asus P5E-VM DO motherboard out of an machine that I built that needs some capacitors. The board is about 8 years old or so. It has served us well until lately. Although several years ago it did once experience a CPU fan failure that I suspect is the beginning of our current problems. Lately the video driver has been freezing (according to Windows error messaging) and the screen will just go black. After much "Googleing" I ended up here. After tearing it down for inspection I found bulging and leaking Caps all over the place. Obviously it needs some help. I am an automotive technician by trade and am well familiar with electronics repair but we never get down to the level of replacing capacitors. I have re-capped a PSU in one of our monitors in the past so I am familiar with the process though.
My main question is this: what is the "best practice" for replacing electrolytic caps with polymers? My board has 9 really short caps around the cpu socket. I am having trouble finding reliable sourced replacements that fit within the envelope. They cannot be any larger as it would interfere with the cpu cooler brackets. I have no clue what the ESR values are for the existing caps or even how to determine that. I suspect from reading on here that these were the cheapest junk Asus could find at the time. I can easily find polymers that are the same basic specs. Do I NEED to use half the capacitance? The advice on here seems to be a little vague. Anyway, all advice is welcome.
Beyond that, I plan to re-cap the whole board or at least where prudent. There are several (I think 6) polymer caps on the board already. Should I replace these too? Also there is a cluster of tiny (10uf 25v) caps in the corner by the audio chip. Should I source and replace these as well? They look like much different quality but I have no clue to be honest.
Thanks in advance for any help offered. Here are the specs and I'll include some pictures too.
Asus P5E-VM DO
Intel Core 2 Duo e6600 2.4Ghz
4GB Ram
Windows 10 Pro 64bit
Capacitors:
680uf - 4V "tmv" (8mm x 8mm)
820uf - 6.3V "kzg" (8mm x 12mm)
330uf - 6.3V "kze" (6mm x 12mm)
470uf - 16V "kzg" (8mm x 12mm)
10uf - 25V "E79A" (2.5mm x 4mm)
I have an Asus P5E-VM DO motherboard out of an machine that I built that needs some capacitors. The board is about 8 years old or so. It has served us well until lately. Although several years ago it did once experience a CPU fan failure that I suspect is the beginning of our current problems. Lately the video driver has been freezing (according to Windows error messaging) and the screen will just go black. After much "Googleing" I ended up here. After tearing it down for inspection I found bulging and leaking Caps all over the place. Obviously it needs some help. I am an automotive technician by trade and am well familiar with electronics repair but we never get down to the level of replacing capacitors. I have re-capped a PSU in one of our monitors in the past so I am familiar with the process though.
My main question is this: what is the "best practice" for replacing electrolytic caps with polymers? My board has 9 really short caps around the cpu socket. I am having trouble finding reliable sourced replacements that fit within the envelope. They cannot be any larger as it would interfere with the cpu cooler brackets. I have no clue what the ESR values are for the existing caps or even how to determine that. I suspect from reading on here that these were the cheapest junk Asus could find at the time. I can easily find polymers that are the same basic specs. Do I NEED to use half the capacitance? The advice on here seems to be a little vague. Anyway, all advice is welcome.
Beyond that, I plan to re-cap the whole board or at least where prudent. There are several (I think 6) polymer caps on the board already. Should I replace these too? Also there is a cluster of tiny (10uf 25v) caps in the corner by the audio chip. Should I source and replace these as well? They look like much different quality but I have no clue to be honest.
Thanks in advance for any help offered. Here are the specs and I'll include some pictures too.
Asus P5E-VM DO
Intel Core 2 Duo e6600 2.4Ghz
4GB Ram
Windows 10 Pro 64bit
Capacitors:
680uf - 4V "tmv" (8mm x 8mm)
820uf - 6.3V "kzg" (8mm x 12mm)
330uf - 6.3V "kze" (6mm x 12mm)
470uf - 16V "kzg" (8mm x 12mm)
10uf - 25V "E79A" (2.5mm x 4mm)
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