AMD FX-8350 Temperature

[Jabulba]

Hi, I've started overclocking my FX-8350 now that I have a decent cooler, but AMD's temperatures seem odd to say the least.

 

CPU is currently at 4.6GHz stable with 1.425ish volts(I think the PSU isn't that great)

I did search and it seems AMD has some crazy way to measure temperatures of the core... at idle mine displays 17ºC and goes all the way to 46ºC when stressing it with prime95, room at 25.0ºC. The motherboard displays 39ºC idle and 57ºC stress

 

Now I looked around and it seems the safe temp the cpu can handle is 62ºC and at 70ºC it starts throttling. Voltage should never go above 1.55v

 

I'm not sure if I should consider AMD's awkward temperature or the motherboard's when reaching the the temperature limit, I'd like to try an OC of 4.8GHz but only if I know the temperature is safe!

 

Specs:

CPU: FX-8350 Black

MB: Sabertooth 990FX/GEN3 R2.0

PSU: Corsair CX750M

RAM: Patriot Intel Extreme Masters DDR3-1600 CL9

COOLER: Nepton 280L

the rest is here: http://linustechtips.com/main/user/154624-jabulba/ not much but improving

And here is a pic of HWMonitor during prime95 stress test, just in case it helps! http://imgur.com/n8nZ35n

[ATryHardTaco]

My stock speed FX-6300 gets higher temps then that for some odd reason, and I have a decent cooler, it's no noctua cooler but it should get the job done.

[AnnoyedShelf]

 

Hi, I've started overclocking my FX-8350 now that I have a decent cooler, but AMD's temperatures seem odd to say the least.

 

CPU is currently at 4.6GHz stable with 1.425ish volts(I think the PSU isn't that great)

I did search and it seems AMD has some crazy way to measure temperatures of the core... at idle mine displays 17ºC and goes all the way to 46ºC when stressing it with prime95, room at 25.0ºC. The motherboard displays 39ºC idle and 57ºC stress

 

Now I looked around and it seems the safe temp the cpu can handle is 62ºC and at 70ºC it starts throttling. Voltage should never go above 1.55v

 

I'm not sure if I should consider AMD's awkward temperature or the motherboard's when reaching the the temperature limit, I'd like to try an OC of 4.8GHz but only if I know the temperature is safe!

 

Specs:

CPU: FX-8350 Black

MB: Sabertooth 990FX/GEN3 R2.0

PSU: Corsair CX750M

RAM: Patriot Intel Extreme Masters DDR3-1600 CL9

COOLER: Nepton 280L

the rest is here: http://linustechtips.com/main/user/154624-jabulba/ not much but improving

And here is a pic of HWMonitor during prime95 stress test, just in case it helps! http://imgur.com/n8nZ35n

 

Sounds pretty normal for the voltage you have.  Don't quote me completely on that, as I have had a few drinks, but 1.4 volts is awfully high.

[TheRunningOtaku]

-snip-

http://www.alcpu.com/CoreTemp/ Try this?

AMD temps are weird. I've seen some review sites add 7-8 degrees on top of the temps there to make it align with ambient, but I'm not sure if that's the way to do it. 

From what I've seen, those seem like pretty normal temps.

[Luke]

 

 

Hi, I've started overclocking my FX-8350 now that I have a decent cooler, but AMD's temperatures seem odd to say the least.

 

I'm not sure if I should consider AMD's awkward temperature or the motherboard's when reaching the the temperature limit, I'd like to try an OC of 4.8GHz but only if I know the temperature is safe!

 

And here is a pic of HWMonitor during prime95 stress test, just in case it helps! http://imgur.com/n8nZ35n

 

 

I believe the "CPU" reading is the motherboards socket temp and the "package" temp is AMD's weird ass algorithm for determining the CPU temp which is apparently actually quite accurate.

 

You will still get the same readings for the most part but i recommend downloading hwinfo64. Every time i've got a inaccurate reading on HWMonitor HWiNFO64 is normal.

[rossbunting35]

The idle temp looks off, if it's 25 degrees ambient in your room then the cpu can't be cooler than that. But your load temps still look good, if you were to increase the difference between your idle temps and room temp to your load temps you would get 54 degrees which is very close to the 57 degrees your motherboard is reading. I would use this as your 'actual' temp and just get it as close to the max temp as you want by increasing the ratio very slowly and stress testing properly after each increase. If you don't have a lot of confidence in your psu don't increase your voltage any more, .3 more of an overclock is not worth frying a component :-) hope this helps

[thebennyboy]

 

Hi, I've started overclocking my FX-8350 now that I have a decent cooler, but AMD's temperatures seem odd to say the least.

 

CPU is currently at 4.6GHz stable with 1.425ish volts(I think the PSU isn't that great)

I did search and it seems AMD has some crazy way to measure temperatures of the core... at idle mine displays 17ºC and goes all the way to 46ºC when stressing it with prime95, room at 25.0ºC. The motherboard displays 39ºC idle and 57ºC stress

 

Now I looked around and it seems the safe temp the cpu can handle is 62ºC and at 70ºC it starts throttling. Voltage should never go above 1.55v

 

I'm not sure if I should consider AMD's awkward temperature or the motherboard's when reaching the the temperature limit, I'd like to try an OC of 4.8GHz but only if I know the temperature is safe!

 

Specs:

CPU: FX-8350 Black

MB: Sabertooth 990FX/GEN3 R2.0

PSU: Corsair CX750M

RAM: Patriot Intel Extreme Masters DDR3-1600 CL9

COOLER: Nepton 280L

the rest is here: http://linustechtips.com/main/user/154624-jabulba/ not much but improving

And here is a pic of HWMonitor during prime95 stress test, just in case it helps! http://imgur.com/n8nZ35n

 

 

Nothing wrong with that build. Temps are fairly normal too. I'm at 4.7Ghz with 1.425v and it's hitting about 65C on the socket temps and about 50C on the core temps after about 30 mins of prime95. I have a H80i. Are you using the paste that came already on the cooler?

[CalculuS]

Nothing wrong with that build. Temps are fairly normal too. I'm at 4.7Ghz with 1.425v and it's hitting about 65C on the socket temps and about 50C on the core temps after about 30 mins of prime95. I have a H80i. Are you using the paste that came already on the cooler?

 

Damn, i'm at 4.5Ghz with stock cooler and it never goes above 54 degrees (prime95).

 

But yeah the 8350 is a goddamn mobo killer and heat spreader, lots of issues with this cpu because it goes above its advertised 125w tdp.

Thats what happened on my old 880G extreme3, that poor old board could barely hold 125w and a 6 core at the same time but 140W and 8 cores?

 

Also the mosfets on some boards with 4+1 power phase are heating up quite badly, I have a 970 extreme3 r2.0 and it was basically the cheapest I could get that supports the 8350. Had to install a chassis fan just to keep the mosfets safe.

 

Also did anybody notice how much voltage the 8350 needs? I needed to up it from 1.3v to 1.425 just to get it stable at a 500MHz increase.

[thebennyboy]

Damn, i'm at 4.5Ghz with stock cooler and it never goes above 54 degrees (prime95).

 

But yeah the 8350 is a goddamn mobo killer and heat spreader, lots of issues with this cpu because it goes above its advertised 125w tdp.

Thats what happened on my old 880G extreme3, that poor old board could barely hold 125w and a 6 core at the same time but 140W and 8 cores?

 

Also the mosfets on some boards with 4+1 power phase are heating up quite badly, I have a 970 extreme3 r2.0 and it was basically the cheapest I could get that supports the 8350. Had to install a chassis fan just to keep the mosfets safe.

 

Also did anybody notice how much voltage the 8350 needs? I needed to up it from 1.3v to 1.425 just to get it stable at a 500MHz increase.

 

If you have the 8350 on anything less than an 6+2 power phased board you will kill it pretty quickly. A 6+2 board will be perfectly adequate providing the mosfets have a cooler on them and that your CPU cooler is good. It is a bit of a guzzler, especially when overclocked. 

[Jabulba]

Sounds pretty normal for the voltage you have.  Don't quote me completely on that, as I have had a few drinks, but 1.4 volts is awfully high.

For the FX-8350 that voltage is normal, sadly.

 

 

http://www.alcpu.com/CoreTemp/ Try this?

AMD temps are weird. I've seen some review sites add 7-8 degrees on top of the temps there to make it align with ambient, but I'm not sure if that's the way to do it. 

From what I've seen, those seem like pretty normal temps.

I use CoreTemp, it displays on AMDs weird values, I tried offsetting the value with the socket temp but it didn't work that well.

 

 

 

 

 

 

I believe the "CPU" reading is the motherboards socket temp and the "package" temp is AMD's weird ass algorithm for determining the CPU temp which is apparently actually quite accurate.

 

You will still get the same readings for the most part but i recommend downloading hwinfo64. Every time i've got a inaccurate reading on HWMonitor HWiNFO64 is normal.

 

I do use hwinfo64 as well, but it also displays AMDs weird values, there is not much a software can do if the sensor is putting the values off.

 

 

The idle temp looks off, if it's 25 degrees ambient in your room then the cpu can't be cooler than that. But your load temps still look good, if you were to increase the difference between your idle temps and room temp to your load temps you would get 54 degrees which is very close to the 57 degrees your motherboard is reading. I would use this as your 'actual' temp and just get it as close to the max temp as you want by increasing the ratio very slowly and stress testing properly after each increase. If you don't have a lot of confidence in your psu don't increase your voltage any more, .3 more of an overclock is not worth frying a component :-) hope this helps

AMD seems to use this strange way to measure the temps because it's supposedly more accurate. But not much use if you don't know what to relate it to... I might increase the voltage just a bit more, I can't go above 1.55 so I'll leave it at 1.45, should still be safe!

 

 

Nothing wrong with that build. Temps are fairly normal too. I'm at 4.7Ghz with 1.425v and it's hitting about 65C on the socket temps and about 50C on the core temps after about 30 mins of prime95. I have a H80i. Are you using the paste that came already on the cooler?

The thermal take I'm using is Arctic Cooling MX-2, I'm not sure if the one that came with the cooler is better or not, but this one is very good. About your temps, can I assume 65ºC is a safe value?

 

 

Damn, i'm at 4.5Ghz with stock cooler and it never goes above 54 degrees (prime95).

 

But yeah the 8350 is a goddamn mobo killer and heat spreader, lots of issues with this cpu because it goes above its advertised 125w tdp.

Thats what happened on my old 880G extreme3, that poor old board could barely hold 125w and a 6 core at the same time but 140W and 8 cores?

 

Also the mosfets on some boards with 4+1 power phase are heating up quite badly, I have a 970 extreme3 r2.0 and it was basically the cheapest I could get that supports the 8350. Had to install a chassis fan just to keep the mosfets safe.

 

Also did anybody notice how much voltage the 8350 needs? I needed to up it from 1.3v to 1.425 just to get it stable at a 500MHz increase.

 

If you have the 8350 on anything less than an 6+2 power phased board you will kill it pretty quickly. A 6+2 board will be perfectly adequate providing the mosfets have a cooler on them and that your CPU cooler is good. It is a bit of a guzzler, especially when overclocked. 

The Sabertooth should be able to handle the power with no problems! About the voltage, I was able to run it at 4.5GHz with 1.38v stable. It currently runs at 4616MHz at 1.392v if only I could keep the voltage stable it wouldn't be set at 1.42v, running at 1.428v when idle

The mobo has 8+2 power phases and a heatsink so that's ok

 

 

Finally Thank you all for the help, I'll try to go for a stable 4.8GHz when my Cosmos II case arrives. This is not a new build by any means, it was rushed when my old PC died mode than a year ago, I had little money and the sabertooth to spare. So now that I have a job I can finally upgrade it

Now, if only I could mark more than one post as the answer, because really, it was the combination of them that helped!

[ryeguy]

Your temps are fine. 

I have gotten a fx-8150 to 4.75ghz at 1.45v with max temps on a 15 min prime95 of 75 degrees using a h100 

 

1.38v should net you 4.8 like you said. 

 

For what its worth.  Overclocking the Fx series chips is a dream and you seem to be doing fine. 

[-rascal-]

The "CPU" reading under the 'Temperature' tab is the...more accurate one. At least that's what I use for my FX-8350.

Depending on your overall case airflow, and ambient (room) temperature, 38*C idle and 58*C are normal and expected.

 

Adjust the CPU Load-Line-Calibration so you get the most consistent Core Voltage AND the voltage compensation won't go too overboard (i.e. you get the Core Voltage at 1.39V, and LLC bumps it up all the way to 1.45V is too high). 

 

CPU overclocking results will vary...but...I'm pushing 4.8GHz with 1.4V on the FX-8350 here.

 

Side: Your HWMonitor picture there seems a little shy on readings -- at least, compared to mine  . What version of HWMonitor are you using?

(i.e. CPU/NB voltage, DRAM voltage...SB and NB temperature readings, etc)