Turning OC off on FX8350
Turning OC off on FX8350
It seems like this might be an unusual issue, but I can't disable the OC on the FX8350. There’s no option available in my motherboard BIOS (MSI 970), and I didn’t find anything in the AMD Overdrive tool either. I lowered the frequency and set the voltage to its defaults, but it’s still not stable. I’m satisfied with the stock 4.0Ghz setting and would appreciate any advice from you.
AltSk0P :
Yes, thats the one.
The sympthoms I've seen were severe game crashes (all of them with mostly Access violation or Invalid pointer errors) and some rare random bsod's. Their occurance frequency varies with OC settings, so I just figured it must have been it.
If you reset the BIOS to its default settings, there should be no OC involved. Like I say, Turbo Mode isn't really OC'ing. It is simply increasing the clock speed of some cores when others aren't needed. At any rate, there's no reason you would need to disable TM if you aren't OC'ing the processor yourself.
Your symptoms don't necessarily point to an OC'ing issue, and wouldn't be caused by OC'ing if you don't in fact OC. How is the rest of your system for software...
Turn off Turbo Mode in BIOS to prevent the CPU from exceeding its base clock speed. This setting can be located on page 3-14 of your manual.
I've already turned it off and it hasn't helped; it remains unstable even after resetting it to its original settings. It seems it's already overclocked by default. Would increasing the voltage be the solution?
AltSk0P :
I already disabled it, didn't help, it's still unstable. Even though I put it back to its base clock (200x20)... Apparently its overclocked by default, isn't it? Should I just increase the voltage?
Its base clocks are not OC'ed, exactly. As fewer cores are needed, the ones that are in use may have their clocks increased a bit... as long as the CPU stays within its power envelope (TDP).
Nevertheless, there should be no reason the CPU is unstable at stock clocks, unless you got a bad one. Highly unlikely, but possible. More likely the motherboard. What exactly are your instability indications?
Is this your board?
http://us.msi.com/product/motherboard/97...o-overview
Yes, that's the one. The symptoms I observed included serious game crashes, mostly due to Access violations or invalid pointers, along with some uncommon random BSODs. Their occurrence depends on the OC settings, which is why I thought it was likely this issue.
What are your temperatures? You might also experience issues with a flaky RAM stick. You should be able to use this.
The temperature rises to 30-40 degrees. I also completed a memtest, and it didn't detect any issues.
I've noticed that with a large amount of RAM, memtest doesn't always detect issues immediately. This is why I recommended testing each memory module individually to encourage error detection.