Hello all,
So I upgraded to an FX-8350 from an FX-4100 last September when the prices dropped with the announcement of the 8370 and 8370E.
The first thing I did when I slapped it in my motherboard was to run Prime95 small FFTs to get a baseline off of which I could overclock. I use a Hyper 212 Evo for cooling. With stock voltage (1.275V according to CPU-Z) and frequency (4GHz) settings (turbo off), my CPU got up to 66°C. I had read that 61°C is the maximum for the 8-core chips, so I was fairly disappointed. So seeing that high temp, I started lowering my voltage to try to get to an acceptable temp (found it at 1.253V, 4GHz @57°C). Not to be deterred, I figured I would try to squeeze out a couple hundred MHz more, and was eventually able to get it stable at 1.2375V, 4.2GHz, 60°C. So there is the background, here are the questions:
In case anyone is interested, here is an Excel spreadsheet of the settings I have tried and their results (make sure you're looking at the 8350 page, not the 4100 one).
Also, all of this is happening on an MSI 890FXA-GD70 motherboard (who's vrm temps are holding up like champs at around 30°C).
Thanks a ton for any advice!
Edit: fixed bbcode for list
So I upgraded to an FX-8350 from an FX-4100 last September when the prices dropped with the announcement of the 8370 and 8370E.
The first thing I did when I slapped it in my motherboard was to run Prime95 small FFTs to get a baseline off of which I could overclock. I use a Hyper 212 Evo for cooling. With stock voltage (1.275V according to CPU-Z) and frequency (4GHz) settings (turbo off), my CPU got up to 66°C. I had read that 61°C is the maximum for the 8-core chips, so I was fairly disappointed. So seeing that high temp, I started lowering my voltage to try to get to an acceptable temp (found it at 1.253V, 4GHz @57°C). Not to be deterred, I figured I would try to squeeze out a couple hundred MHz more, and was eventually able to get it stable at 1.2375V, 4.2GHz, 60°C. So there is the background, here are the questions:
■Is that the correct maximum temperature? AMD doesn't seem to list one, but it seems weird that their stock cooler would not meet the requirements, much less a Hyper 212 Evo (I'm assuming the the stock cooler is not better than a Hyper 212 Evo)...
■Are these temps crazy for a Hyper 212 Evo? They seem pretty high to me, as I've seen other people claiming much higher clocks and voltages with similar temps. Furthermore, if my Hyper 212 Evo can only keep it at 66°C on stock settings, surely the stock cooler would fail miserably? That doesn't seem to make sense to me...
■If my temps are abnormal, does anyone have any idea what could be wrong? I'm positive my cooler installation is correct (I've re-installed it with new thermal grease twice with no change to temps). I am using a single CM Jetflo fan in push, which I realize is more optimized for airflow than pressure, but I would think it wouldn't be horrible? I did try two Jetflo 120s in push-pull and temps actually went up a few degrees... Anyone have any ideas?
■I am considering upgrading to water cooling (probably the Swiftech H220-X, but I'm open to suggestions if anyone has any), but am concerned that it may not actually help much if I just got unlucky with my chip. Do you think it would help significantly? Any estimation of changes in temperature would be much appreciated.
In case anyone is interested, here is an Excel spreadsheet of the settings I have tried and their results (make sure you're looking at the 8350 page, not the 4100 one).
Also, all of this is happening on an MSI 890FXA-GD70 motherboard (who's vrm temps are holding up like champs at around 30°C).
Thanks a ton for any advice!
Edit: fixed bbcode for list