AMD T-bird 1.2 unstable @ 1.2, but fine at 900mhz

[AncientPC]

Could it possibly be the motherboard? It's an ECS K7S5A with the SiS 735 chipset, but I just find it odd that my system runs incredibly unstable (as in bsods anywhere from once every 5 minutes to at most once every day) at the listed speed.

In other words, I have to underclock the CPU to get the system to run safely.

 

[johnjkr1]

I had a similar problem with an ECS board, check and see what actual cpu voltage it is supplying. I had mine set correctly, but the board was undervolting untill I raised the voltage. Also, make sure you have the latest bios (which you probably already do). Two other questions, what temps is it hitting and what type of memory are you running with it?

 

[alm4rr]

do you have the FSB set to 133 or 100?

 

[monzie]

Have you done the chipset heatsink mod (some boards need it ........others dont... if the heatsink is only luke warm then you need to do the mod as it aint doing its job and overheating the north/southbridge).

http://www.ocworkbench.com/2002/ecs/k7s5aguide/THE%20CHIPSET%20HEATSINK%20MOD%20GUID1.htm

 

[hytek369]

i have the same problem. i got a cheap mobo from compugeeks.com

this is the last time i will buy cheap, dammit