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2600k High Temps Stock

gpse

gpse

Senior member
Hey guys, using core temp I was monitoring my temps at idle and full load, this is what I found.
temps:
idle: around 30-35*c
full load (prime95): 88-91*c

voltage:
idle: 0.9v
full load (prime95): 1.32v

My question is, why are my voltages so high under full load!? I'm not over clocking, and everything in the bios is set to default/auto.

Hardware:
Intel Core i7 2600k
Gigabyte Z68X-UD3H-B3
Stock Intel Heatsink/Fan
Antec 300 Case
21*c Ambient
 
Not sure about what Gigabytes bios does by default. I know some boards will try to overclock your cpu if you use xmp profile.

What are your cores running at when you fire up something like prime?

Stock vcore should be around 1.2v's or so I'd think.
 
sorry i forgot to add that:
idle: 1600mhz,
full load (prime) all 4 cores at 3800mhz
is there a bios setting I can change to lower the voltage under full load? At first I thought my cooler was defective, but my idle temps are normal for the stock cooler.
I also verified all 4 pins are in properly because I took a look at the rear of the mono
 
Idle I'd say they are OK. You have the stock Intel HSF? It's crap at torture/stress runs like prime but under normal circumstances it should hold. Try a handbrake encoding, it loads all your cores to 100% see what you get. Is the fan enabled to go 100% in BIOS?
The voltage is way to high for stock. You should have around 1.25v at full load.

Wait a minute. You say it's 3800 on all cores? Default turbo for 2600K is 3500 on all cores, 3.8 on one, 3.7 on 2 and 3.6 on three. So the settiongs in the bios might be altered.
 
Idle I'd say they are OK. You have the stock Intel HSF? It's crap at torture/stress runs like prime but under normal circumstances it should hold. Try a handbrake encoding, it loads all your cores to 100% see what you get. Is the fan enabled to go 100% in BIOS?
The voltage is way to high for stock. You should have around 1.25v at full load.

Wait a minute. You say it's 3800 on all cores? Default turbo for 2600K is 3500 on all cores, 3.8 on one, 3.7 on 2 and 3.6 on three. So the settiongs in the bios might be altered.
 
gpse said:
Hey guys, using core temp I was monitoring my temps at idle and full load, this is what I found.
temps:
idle: around 30-35*c
full load (prime95): 88-91*c

voltage:
idle: 0.9v
full load (prime95): 1.32v

My question is, why are my voltages so high under full load!? I'm not over clocking, and everything in the bios is set to default/auto.

Hardware:
Intel Core i7 2600k
Gigabyte Z68X-UD3H-B3
Stock Intel Heatsink/Fan
Antec 300 Case
21*c Ambient
Click to expand...

I would reseat your cpu cooler those temps look way too high for stock

EDIT. To put things into perspective I torture tested (intel burn test) one of the 2500k rigs I built at stock on the stock intel cooler and was maxing out around 55-60 degrees.
 
Last edited:
IMO thats not normal for stock hsf,thats 20c higher than mine when i was using stock on 2600k w/ linx.ambient here is 29-31c.

i think its the vcore causing temp.
 
thanks for the replies everyone, I have reseated the cooler twice already, making sure to clean off the CPU and heatsink, then applied a tiny dot of Arctic Cooling MX-4 in the middle of the cpu. I guess you can say I used the grain of salt method, since I just applied a tiny dot in the middle, and used the heatsink pressure to spread it out. I'm very confident the heatisnk is seated, as both time I've done this have made zero difference with themps. So my question now is, why is the BIOS applying so much voltage to my CPU under load? How can I fix this.
 
gpse said:
thanks for the replies everyone, I have reseated the cooler twice already, making sure to clean off the CPU and heatsink, then applied a tiny dot of Arctic Cooling MX-4 in the middle of the cpu. I guess you can say I used the grain of salt method, since I just applied a tiny dot in the middle, and used the heatsink pressure to spread it out. I'm very confident the heatisnk is seated, as both time I've done this have made zero difference with themps. So my question now is, why is the BIOS applying so much voltage to my CPU under load? How can I fix this.
Click to expand...

Your BIOS by default is overclocking you CPU. Your 4 core load frequency is too high which combined with auto voltage = higher vcore/ temps.

You need to carefully look thru BIOS settings. Make sure bclk is 100.0 and look for maybe max Turbo multiplier?
 
gpse said:
I guess you can say I used the grain of salt method, since I just applied a tiny dot in the middle, and used the heatsink pressure to spread it out.
Click to expand...

Are you certain that you haven't been a little too conservative with the amount? Have you viewed any installation videos online to compare your work to? "Grain of salt" just seems to be not quite enough, if I'm taking it literally.

The intent is to displace air pockets between the cooler and the heat spreader, as the paste is a better conductor of heat.
 
the first time i put quite a bit, a little too much I think, so the second time I made sure to put a small amount. Either way the temps were too high. Does anyone have a chart that shows how turbo boost works on the 2600k, because in the bios I couldn't find anything that looked as if it's overclocking the CPU.
 
1 core 3.8GHz*
2 cores 3.7Ghz*
3 cores 3.6 GHz*
4 cores 3.5GHz***

Not familiar with your BIOS so wouldn't be able to steer you in the correct direction. Maybe someone with your board will pop in and help.

You can edit title. Edit first post click advanced add MB model and maybe Turbo help to title.
 
Last edited:
What software is reporting the 1.32v? Also what software are you using to report your cpu speed. I have no doubt your board is running too much voltage looking at those temps but I'm wondering if you are actually running at stock speed and if not why not.
 
Kenmitch said:
1 core 3.8GHz*
2 cores 3.7Ghz*
3 cores 3.6 GHz*
4 cores 3.5GHz***

Not familiar with your BIOS so wouldn't be able to steer you in the correct direction. Maybe someone with your board will pop in and help.

You can edit title. Edit first post click advanced add MB model and maybe Turbo help to title.
Click to expand...

I went into the bios again, and you were right, the memory was set to XMP. After changing it from XMP to standard everything is good!
temps when running prime95:

8 cores/thread:
3.5Ghz, 74*c max

1 core/thread:
3.8Ghz, 74*c max

thanks again for all the help, everything is running perfect now!
voltage dropped to 1.27 under load (1-8 threads, doesn't matter)
idle 0.9v
 
gpse said:
thanks for the replies everyone, I have reseated the cooler twice already, making sure to clean off the CPU and heatsink, then applied a tiny dot of Arctic Cooling MX-4 in the middle of the cpu. I guess you can say I used the grain of salt method, since I just applied a tiny dot in the middle, and used the heatsink pressure to spread it out. I'm very confident the heatisnk is seated, as both time I've done this have made zero difference with themps. So my question now is, why is the BIOS applying so much voltage to my CPU under load? How can I fix this.
Click to expand...


Grain of salt? Should be about the size of a grain of rice.
 
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