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Old January 30, 2008, 07:48 AM
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Default ds3r SB heatsink

Someone pointed out that my p35-ds3r mobo is missing the SB heatsink. I emailed Gigabyte, and I won't get a response until after the Chinese new year.

Can anyone recommend SB heatsinks that I can buy, that will fit on the board? There's alot of confusing products out there, and apparently some 2-pin SB heatsinks do not all fit on the ds3r. I can't afford the downtime to RMA this board...

Thanks folks.
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Old January 30, 2008, 10:03 AM
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It was me. I would go for the Thermalright HR-05 (http://www.ncix.com/products/index.p...e=THERMALRIGHT), with a 70mm fan on it. I have the SLI version, works great.

Compatibility page: http://www.thermalright.com/new_a_pa...cl.htm#gigap35.
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Old January 31, 2008, 12:57 AM
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That's a little overkill for an ICH9 southbridge, isn't it?

I'd measure the distance between the mounting pins, but something like THIS might do the trick without getting in the way of anything else. I've seen a lot of people use this, and it keeps the SB temperatures just fine without even bothering with the fan.
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Old January 31, 2008, 04:28 AM
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Overkill? I own 2 Gigabyte P35s and both run high FSBs - 400 and 465. Using a laser thermometer, the passive SB block temps under load are high to my liking: 47 and 49C respectively. Changing the block made a huge difference. And it runs passive too.
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Old January 31, 2008, 07:19 AM
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Quote:
Originally Posted by MpG View Post
That's a little overkill for an ICH9 southbridge, isn't it?

I'd measure the distance between the mounting pins, but something like THIS might do the trick without getting in the way of anything else. I've seen a lot of people use this, and it keeps the SB temperatures just fine without even bothering with the fan.
I used the non-fan version of that on my P5N-E SLI southbridge, it didn't quite fit though so I had to drill out the mounting holes some more...

It was the highest quality heatsink I ever saw though. Absolutely perfect.
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Old January 31, 2008, 10:24 AM
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Fantastic, thanks everyone!

Other than providing some safety to my ICH9 SB, this wouldn't really reduce the temps in the case (e.g. my CPU load temps) much would it?

(wow that thing is huge...)
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Old January 31, 2008, 10:57 AM
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Quote:
Originally Posted by 3.0charlie View Post
Overkill? I own 2 Gigabyte P35s and both run high FSBs - 400 and 465. Using a laser thermometer, the passive SB block temps under load are high to my liking: 47 and 49C respectively. Changing the block made a huge difference. And it runs passive too.
really? wow, maybe I wont sell my hr05 sli...

I just figured it was such a small HS that it must run cool (stock ich9 one)...
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Old January 31, 2008, 11:02 AM
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They are great boards, but I don't think they were designed for high FSBs. The SB HSs are too small, same problem for the NB on the DS3L. The NB on the DS3R is better, but still needs a fan. And it's the same for my 965P board.
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Old January 31, 2008, 02:24 PM
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Interesting. I wouldn't have expected so much variance between manufacturers. On my own board, the SB hovers around 30 degrees, and it's a pretty scrawny heatsink with a faceplate covering the top. Maybe those heatpipes actually do something after all. Under heavy burn, my temps go up to about 35 degrees, but I suspect that it's just getting a heat dump from the regulator area.
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Old January 31, 2008, 02:50 PM
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Well you are comparing a SB cooled by a simple block (DS3L, DS3R) to a SB cooled by a block with more fins and heatpipes. It has to make a difference. I know that if I remove the Spot Cool fan from my 965P running at 490FSB, it BSODs. But the DS3L with the HR-05 runs cool passively, at 465 FSB - which reminds me I have to update my sig...
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