Amd Fx 8120 4.2Ghz Temps

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Q

Quadriladder

Honorable
Nov 4, 2013
14
0
10,510
Hey.
Im not sure if this is normal, or i just got a really good chip, but i overclocked my 8120 to a stable 4.2 ghz, on a cougar cmx700w psu modualr bronze, and a asrock extreme 4 970. i didnt want to go any further, becuase i dont want to risk it on a 4+1 phase mobo, or should i??? i also have a Thermaltake water 2.0 performer to cool it in a Zalman Z11. At idle, which is 4.2Ghz, it is at about 15-20 Degrees Celcius, and at load, on prime 95, it never goes past 37 Degrees, why is this. Is it a really good chip or something, becuase i reasearched it and people say that at 3.8 Ghz, with better coolers than me, they idle at 35ish degrees. Im happy but confused.
Thanks
 
Solution
C
Coretemp and, if you have a Radeon GPU, AMD Overdrive will both read the Core CPU temperatures, usually. Since it is when your CPU at load that concerns you most at the moment, those are the most important to worry about.

HWMonitor will generally give you the readings for both set of sensors, but not always. Speedfan is a mixed lot. I use either HWMonitor or my onboard motherboard program (AI Suite) for monitoring idle temperatures.

1.38 is pretty good for the amount of gain you've achieved. That is just above what my FX-4170 eats up running at stock. (4 cores running at 4.2 ghz, factory overclocked.) I think you may be safe where you are at. You might be able to push a bit ahead, but, be mindful of that 4+1...
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Calculatron

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Apr 3, 2013
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Unless you're in someplace really cold, you're monitoring the wrong temperatures for idling - don't worry, it's the right ones for when under a load, though! Yeah, it's confusing, but CPUs usually have two sets of temperature sensors. The CPU core sensors are fixed by a "weighted" equation that allows them to be more accurate at high temperatures, but at lower temperatures they can give weird (usually sub-ambient) readings. The other set of temperature sensors are good for idle temperatures.

So, that explains that. As for whether or not to push further... what kind of voltage are you already feeding it?
 
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Q

Quadriladder

Honorable
Nov 4, 2013
14
0
10,510


Hey, im pumping 1.38v into it, and its stable, can i go any further on my mobo? And also, i downloaded 5 more programs and all had them running, then i turned on prime 95, and they all read the same? What is the most accurate way of measuring the cpu temp?
 
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C

Calculatron

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Apr 3, 2013
2,240
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12,460
Coretemp and, if you have a Radeon GPU, AMD Overdrive will both read the Core CPU temperatures, usually. Since it is when your CPU at load that concerns you most at the moment, those are the most important to worry about.

HWMonitor will generally give you the readings for both set of sensors, but not always. Speedfan is a mixed lot. I use either HWMonitor or my onboard motherboard program (AI Suite) for monitoring idle temperatures.

1.38 is pretty good for the amount of gain you've achieved. That is just above what my FX-4170 eats up running at stock. (4 cores running at 4.2 ghz, factory overclocked.) I think you may be safe where you are at. You might be able to push a bit ahead, but, be mindful of that 4+1...
 
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Solution
Q

Quadriladder

Honorable
Nov 4, 2013
14
0
10,510


Ok, I think I might not push it any further, it's a 20% performance increase! I rendered a Sony Vegas video at stock and it was 15m, the overclocked it was 12, so I think it's ok. As for the temps, core temp was one that I was using and overdrive as two of the five that I tested, and they all measured the same. So I guess that I got a extremely good chip? :D

 
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Calculatron

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Apr 3, 2013
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Lucky you!

Tell me when you want to upgrade, I'll buy that off from you. :p I'm probably going to have my FX-4170 for a bit, and although I can get it up to 4.6 on stock voltages, I have to go up to 1.4v to get to a stable 4.7. I haven't bothered to go beyond that, but I have a feeling I won't ever reach 5.0ghz.
 
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