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780i NB heat fix is here now - Page 4

post #31 of 38
Sorry for the late entry! Just got the XFX 780i version and just put my finger on the northbridge cooler. Ouch. Nearly 70C after it had been working for a while.

I'd like a passive cooling solution. My plan is to remove the cooling fins from the northbridge, but keep the base and heatpipes. That way to cover the small chip next to the northbridge.

Then I'm thinking of screwing a large passive Noktua cooler to whats left of the base with its (small) fins off.....

First question Does it look like the fins will come off to leave a smooth base?

Second:- I'm guessing all the heat IS coming from the northbridge and not the south?




EDIT http://www.overclock.net/intel-mothe...x-mutantx.html
Edited by dogshome - 1/13/09 at 2:58pm
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post #32 of 38
So I turned my 780i into a folding board and found out my MCP would actually cause a reboot because even at a simple 3.6 overclock on a qx9650 the MCP would hit 110 and cause a reboot. I head to bios and even at idle it's sitting high 80's... AIf I go straight to bios after reboot it's still above 100, this is with stock fan on max... So should I remove the heatsink, all foam pads and just re-apply with TX-2?
post #33 of 38
Anyone? Or is my 780i just too old to care about? I would agree lol. But this is for folding.. someone please respond with a simple yes, no or instructions.
post #34 of 38
Yes, get it off and put some Ceramique on the chips (great stuff!). Don't bother with the pads unless you have hands like shovels, no mechanical skills, regulalry spill your beer down your shirt or otherwise poor hand-eye co-ordination :-)
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post #35 of 38
I know this is an older thread, but I'm back to using my 780i board. Only problem I ever had with it was temps on the MCP. I've tried all of those steps, aside from just removing all the pads, and dropped temps from 63-65C on the MCP to 55-57C, which isn't bad, but still too hot for my tastes. I'm shooting for under 50C if at all possible. After reading some reviews I've popped off (litterally) the extra piece of the heatpipe that goes down to the MCP and going to slap on http://www.newegg.com/Product/Produc...82E16835116018. It will still leave room for SLI & Tri-SLI if I decide to in the future, and hopefully get me the temps I'm looking for. I've also used MX-2 for thermal paste, so when it arrives this week I'll hopefully get some nice temperatures for once.
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post #36 of 38
Quote:
Originally Posted by DigitalBear View Post
So I turned my 780i into a folding board and found out my MCP would actually cause a reboot because even at a simple 3.6 overclock on a qx9650 the MCP would hit 110 and cause a reboot. I head to bios and even at idle it's sitting high 80's... AIf I go straight to bios after reboot it's still above 100, this is with stock fan on max... So should I remove the heatsink, all foam pads and just re-apply with TX-2?
Something definitely isn't right if it's getting that hot. Hell, even before I applied Ceramique I wasn't breaching 60 C even at 400 FSB. Definitely pop off the pipes and heatsinks and see what the situation is. Some of the pads are terribly placed and aren't allowing good contact. How much voltage are you putting through the MCP?

Also, I have an Antec spot cooling fan positioned over the MCP so now it idles in the high 40s and never goes above the mid 50s.
Edited by GoneTomorrow - 2/17/09 at 7:47pm
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post #37 of 38
50 to 60C is normal depending on what airflow, cooling and hot SLI'd cards in the case you have. The chipset generates a very great amount of heat in any case. I don't know at least 80W between them at a guess.

When I threw out the stock cooling and made my own, I noticed that the chips were not very level with the board. You would have thought that there would be no room for error with these multi-pin devices, but one was a few visible degrees up one end. I think that is why mine (combined with the rubbish standard chipset fan) approached 70 occasionally.

If you see forty-something to fifty something degrees, you are 'as good as it gets'.
Edited by dogshome - 2/18/09 at 5:05am
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post #38 of 38
Hi guys, first post here. And even later to the game with my 780i board.
During the process of silencing my pc I noticed that the NB fan was very loud and started to pay closer attention to motherboard temperatures. The MCP was running very hot just idling at about 80°C. First I just swapped out the noisy fan and installed 50mm 3000RPM one, temps dropped a bit and the noise was pretty much gone.
Wasn't too happy with the temps though, so I removed the hole heatpipe assembly, pads and cleaned all the excess compound and reapplied with more moderate amounts.

Still, ~70°C and over after idling in BIOS mode. This is the case with and without overclocking, currently at 4GHz with my E8400 but the volts and temps are same as with stock 3GHz.
Anything I can do here? 60mm fan would of course help some, but...
Haven't got any instability issues though, so I'm wondering how worried should I be exactly?
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