Tyan S2390B Overheating Problem

[mjanspacher]

I'm having a problem with my Tyan Trinity KT-A (S2390B) motherboard, and I hope someone can help out.
The board was shipped with BIOS version 1.10. I built my system with a T-bird 950 processor (MB set to 200MHz FSB) and a Thermaltake Chrome Orb heatsink/fan. I used 1 stick of 128Mb CL2 SDRAM (not cheap stuff!), and I used a nVidia Vanta AGP card. When I first put the system together everything worked fine. However, after flashing the BIOS to ver. 1.11 I immediately started having trouble with the CPU overheating. The CPU temp would start at about 90F, then steadily run up to over 125F. after about 15 to 20 seconds the system would freeze, then the video would disappear. Before flashing the BIOS the CPU temp was about 105F to 110F consistently. The above components mounted on my EpOX 8KTA3 board run fine, with a CPU temp around 110F. The Tyan board has been back to Tyan for diagnosis, but they claim it's fine. However, I don't think they kept the system up long enough to overheat it (the first time it is booted from a dead-cold temp it will run around 45 seconds before acting up).
Has anyone out there experienced a similar situation with this
board? My gut feeling is that I need to re-flash the BIOS back to ver. 1.10 & see what happens. It just seems to me that this is an issue with the MB, not with the other hardware. At this point I'm not getting any help at all from Tyan Tech Support. Any feedback is greatly appreciated!

UPDATE 06-25-02:
I have solved the problem. I installed a CoolerMaster HCC-002 solid copper heatsink/fan and their premium heatsink compound and I re-flashed the BIOS back to ver. 1.10 and the system is now running at 87 degrees F - a HUGE difference!