amd761 chipset overheating

[curnow]

after one entire day of "blue screens of death", and random reboots after installing winXP, I went about trouble shooting my system. It only got worse, I was having a freeze, or a reboot, or an application crash every 3 to 10 minutes. The only thing that had changed in my system since this had began to occur was that I had removed my homemade watersink from my athlon 1200C and installed a swiftech MCW462-B. When I decided to begin inspecting the block, I realized although the system was powered down, there was a significant source of heat... My chipset, an AMD 761, on my "MSI K7 master" mainboard was really hot. The chipset has just a very small aluminum heatsink on it, I noticed my roommate, who has an "abit kg7 raid" with the same chipset had a fan mounted on his heatsink. When I powered up the system again, it was too hot to touch for more than 1 or 2 seconds.


So, I've got a k6-2 fan partially screwed onto it and hanging there. I have no more crashes, system is stable again.

I have two questions. Why would my chipset start overheating after installing the swiftech mcw 462, or is it even the waterblocks fault? And if this is not going to go away does anyone have a recommendation on a better way to cool my burning hot chipset? ( I figure it must be damn hot if I can't touch for more than a few seconds.)

[Wega!]

Bump! I would like to know more about this as well. :)

[The Overclocker]

since you have upgraded to water cooling their will be less air flow in your case and the chipest will get hotter, put some artic silver under the heatsink and buy a 486 fan to screw on the heatsink

[Maximus Nickus]

Go to www.overclockingstore.co.uk and buy the Icucle Copper Cooler for about £10, fits on ya N-Bridge and cools AMD Cpu's up to 1ghz!

[donny_paycheck]

CPUFX (http://www.cpufx.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=o&Product_Code=CMHS&Category_Code=CMHS) sells a small heat sink for a north bridge. It takes a 40mm fan. What's cool about it is that it's only as big as the north bridge chips so if you've got other stuff nearby (like a kg7 has capacitors around the chipset) then you can still fit it on. Otherwise you can do something like in the pic, where I fitted a blorb on the KT266A northbridge. Both of these things will cool it pretty well. Some KT266A boards are having those little greenie passive coolers installed on 'em. The KR7A still uses a fan, as do most high quality KT266A boards. As far as I knew, all AMD761 boards used active cooling on their chipsets but I was ill informed. Anyway, try something like this. I have a digital doc thermocouple under that thing measuring the northbridge temp and it's about 80-82F at full load.

[donny_paycheck]

this is it:

[Maximus Nickus]

Originally posted by donny_paycheck
CPUFX (http://www.cpufx.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=o&Product_Code=CMHS&Category_Code=CMHS) sells a small heat sink for a north bridge. It takes a 40mm fan. What's cool about it is that it's only as big as the north bridge chips so if you've got other stuff nearby (like a kg7 has capacitors around the chipset) then you can still fit it on. Otherwise you can do something like in the pic, where I fitted a blorb on the KT266A northbridge. Both of these things will cool it pretty well. Some KT266A boards are having those little greenie passive coolers installed on 'em. The KR7A still uses a fan, as do most high quality KT266A boards. As far as I knew, all AMD761 boards used active cooling on their chipsets but I was ill informed. Anyway, try something like this. I have a digital doc thermocouple under that thing measuring the northbridge temp and it's about 80-82F at full load.


Have u got ramsinks on your board?

[donny_paycheck]

Originally posted by nick_cw
Have u got ramsinks on your board?

The blue one below the socket A just barely covers all the voltage regulators. It's secured to them with AS thermal epoxy. Yeah, it's a ramsink from a thermaltake mem cooling kit.

*edit: Oh yeah, the small one on the south bridge was just for kicks....it does get warm during operation though.