GA-7VA need help poly modding

[c_hegge]

I have a Gigabyte GA-7VA to refurbish. It has a vented Rubycon MBZ (the one with the white arrow pointing to it) next to a coil. I suspect that the coil has been hot and overheated it. I'm thinking about poly modding this board. I've mentioned what the current caps are in the pic. I'm considering the following caps:

Red - 680uF poly (http://cgi.ebay.com.au/4-NCC-PSA-6-3...item439b794284)
Yellow - 820uF Poly (http://cgi.ebay.com.au/4-Sanyo-SEP-6...item439c82586e
Green - 1500uF Poly (http://cgi.ebay.com.au/2-Sanyo-SEPC-...item45effd88cc)
Blue - 1000uF Poly (http://cgi.ebay.com.au/4-Fujitsu-RE-...item45ed32bfdb)

Can someone tell me whether or not these are appropriate replacements?

[c_hegge]

Re: GA-7VA need help poly modding

Hello? Anyone?

[c_hegge]

Re: GA-7VA need help poly modding

I've ordered the caps. I ended up going with 820uF for the blue ones and 560uF for the yellow ones. Will post back with results.

Sorry for not using getting them from here, but topcat doesn't have all those sizes

[c_hegge]

Re: GA-7VA need help poly modding

I've done the poly-mod and so far so good, although I haven't given it much stress testing yet.

[c_hegge]

Re: GA-7VA need help poly modding

Here's a pic

[shadow]

Re: GA-7VA need help poly modding

It looks like a good job.

I have a spare GA-7VA revision 1.0 board to offload...I was going to recap mine but never got around to it. And now I have no use for the system.
The original Choyo caps are known to bulge. There is a picture on these forums somewhere where they have bulged so far that the caps were at 45 degree angles compared to the motherboard!

[c_hegge]

Re: GA-7VA need help poly modding

It's been running overnight in a Prime95 Blend test and no problems yet. It was quite a pain to get some of the caps in there since the legs are slightly thicker. Also, the 820uF 6.3v Polys are 10mm diameter while the original lytics were 8mm, so it was a tight squeeze in some places, but it works. I think it should now be called a GA-7VA-DS3L

[Scenic]

Re: GA-7VA need help poly modding

I think it should now be called a GA-7VA-DS3L

the L usually stands for Light/Lite (stripped down cheapo board, fewer options in BIOS) .. doesn't quite match
(if you don't count the missing onboard LAN)

edit: wtf happened to the NB fan screws?

[Topcat]

Re: GA-7VA need help poly modding

Sorry for not using getting them from here, but topcat doesn't have all those sizes

it's ok, I forgive ya. I'm working on some poly sourcing, so in time, I will have these in stock.

Looks like a great repair, well done!!

[c_hegge]

Re: GA-7VA need help poly modding

the L usually stands for Light/Lite (stripped down cheapo board, fewer options in BIOS) .. doesn't quite match
(if you don't count the missing onboard LAN)

edit: wtf happened to the NB fan screws?

I call it a DS3L and not DS3 since there is no onboard lan. The board didn't originally have a northbridge fan, but it got hot so I added one.

[c_hegge]

Re: GA-7VA need help poly modding

Still going strong after ~44hrs in Prime95 (24Hrs Blent test, 20Hrs In-Place FFT). I'll run memtest overnight and see how it goes there. If still no problems, it should be safe to say it's fixed.

[c_hegge]

Re: GA-7VA need help poly modding

It's looks like it's going to be OK. I'm posting from it now.

[c_hegge]

Re: GA-7VA need help poly modding

We found another GA-7VA at work. This one had no bad caps, but the middle DIMM slot was faulty (wouldn't detect any RAM in it). I re-soldered the pins and now the slot works. I also gave it a full poly-mod and, rather than putting a fan on the northbridge heatsink, I replaced it with a bigger passive cooler.