low thunderbird temp?

[dwango]

I just oc'd my tb 800 to 895, and it's idling at 34 C with this generic HSF. Does that seem too low? I looked at my thermistor (KT7-raid), and it seemed to be above the socket.

 

[Skiracer]

IMHO, 34C with a generic HSF is way too low.

I am running a 800 MHz Tbird at 800 MHz with a "stock" coolermaster HSF and it is idling at 54C. (Yes I have good contact, yes I used a small amount of thermal paste.) I know for sure that I have good contact between the thermistor and the CPU- When I release the ZIFF socket (no HSF!) the CPU pops up a little bit due to the spring force of the thermistor. Try bending the thermistor up so that approx. 0.1" protrudes abone the socket and then install the CPU, using the CPU to push the thermistor the rest of the way down. This should guarantee good contact.

 

[Mem]

Not sure on your board,I have the MSI K7T PRO with Thunderbird 900mhz,no cooling in my PC,apart from PSU fan & heatsink/fan,anyway I get 37c for case 40-42c idle with my standard Taisol heatsink/fan & highest is 48c under load.

 

[dwango]

I just bent the thermistor up a little (I think, couldn't really tell if it was bending since it's so hard.). There is definitely a spring-action there. I also took a sweing needle and slid it flat across the socket and it could not slide across the thermistor. The chip is idling at 33 C. It does go up to about 48 after 10 minutes of constant Quake3 demo001. Odd chip or bad thermistor? How accurate are these thermistors anyways?

 

[DaddyG]

Thermistors are usually accurate but, I don't think that the underside of a TBIRD/DURON is a good place to read the temp. These are 'flipped' chips, the heat is at the top. The best you measure is the heat that is absorbed by the ceramic. A thermal probe mounted against the side of the die is the best place IMHO.