Hi, hoping somebody can help. I Don't seem to post much, only when I get my self into trouble but it's worked out so far. Heres my problem. I am running an
Athlon II x4 Black Edition 965 cpu with a MSI NF750-G55 AM3 NVIDIA nForce 750a SLI motherboard. There is an overclock switch on the motherboard that has been disabled or turned to off.
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130235
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103727&cm_re=965-_-19-103-727-_-Product
Here is my problem. I cannot set the stock bus speed in the BIOS back to 200MHz. The lowest it goes is 240. Even at fail safe. I have tried everything disabling cool and quiet and core calibration. This is making the 4th core unstable and giving me blue screens I believe. I have run it as low as 2.4GHz with the bus at 240 and multiplier at around 10 and still blue screens. Usually happens when running multi-threaded applications like extracting files. A Prime 95 test shows an unstable 4th core within seconds. I believe not being able to set the cpu bus speed in BIOS in the culprit. Thanks in advance for any help.
Athlon II x4 Black Edition 965 cpu with a MSI NF750-G55 AM3 NVIDIA nForce 750a SLI motherboard. There is an overclock switch on the motherboard that has been disabled or turned to off.
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130235
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103727&cm_re=965-_-19-103-727-_-Product
Here is my problem. I cannot set the stock bus speed in the BIOS back to 200MHz. The lowest it goes is 240. Even at fail safe. I have tried everything disabling cool and quiet and core calibration. This is making the 4th core unstable and giving me blue screens I believe. I have run it as low as 2.4GHz with the bus at 240 and multiplier at around 10 and still blue screens. Usually happens when running multi-threaded applications like extracting files. A Prime 95 test shows an unstable 4th core within seconds. I believe not being able to set the cpu bus speed in BIOS in the culprit. Thanks in advance for any help.