Sign in with
Sign up | Sign in
Your question

Problem overclocking Phenom II 550 BE

Tags:
  • CPUs
  • Overclocking
  • Bus Speed
Last response: in Overclocking
Share
February 14, 2010 4:12:45 PM

I have a 550 BE. I have CPU voltage at 1.52 volts, multiplier at 19.5, and bus speed at 202 in the BIOS. That sets the CPU at 3939MHz. Yet when I boot into windows its at 3960MHz and my bus speed is at 203. CPU-Z says the voltage drops down to 1.504 volts, but doesn't dip below that. So what exactly is happening? I have an MSI NF750-G55 Motherboard. Thanks.

More about : problem overclocking phenom 550

a b à CPUs
a b K Overclocking
February 16, 2010 5:45:25 AM

Hmmm, are you sure your power's clean? You're using a good PSU, right? Also CPU voltage is variable; have you tried looking at it when your CPU is under load?
m
0
l
February 22, 2010 5:07:40 PM

I got it figured out. I have the multiplier at 19.5, voltage at 1.515, and bus speed at 200. Its stable now, with a Prime95 run off 11 hours and 20 minutes, never got over 41 Celsius, never crashed, never errored. Don't think the MOBO could handle the overclock. Its only got a 4-pin CPU power cable vs. some newer at 8-pin. But I am happy with 3.9Ghz.
m
0
l
Related resources
February 24, 2010 11:17:00 AM

pcman09 said:
I got it figured out. I have the multiplier at 19.5, voltage at 1.515, and bus speed at 200. Its stable now, with a Prime95 run off 11 hours and 20 minutes, never got over 41 Celsius, never crashed, never errored. Don't think the MOBO could handle the overclock. Its only got a 4-pin CPU power cable vs. some newer at 8-pin. But I am happy with 3.9Ghz.


Usually when you increase the bus speed you need to increase the HT too, i think. Did you OC that at all?
m
0
l
March 9, 2010 11:07:55 AM

Truhls said:
Usually when you increase the bus speed you need to increase the HT too, i think. Did you OC that at all?


No, didn't want to mess with any other settings too much, but I will think of that too in the future if I do. The OC is stable now.
m
0
l
!