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post #41 of 59
Quote:
Originally Posted by firestorm1 View Post
your right. the temps were the same. thanks for clearing that up. but theres no option in the msi nf750-g55 bios to disable any cores though. i looked through the manual and still got nothing. so the OP wont be able to disable those cores.
Maybe you could check if there is a bios update available to your mobo.
I would also google for your mobo model + disabled cores to see if anytbody has ever done it with it.

Furthermore, If worse comes to worse you could contact MSI and see if it's posible to implement that on a next BIOS update
Sometimes the board is capable of doing things that they simply don't program them to do
post #42 of 59
Quote:
Originally Posted by EduFurtado View Post
Maybe you could check if there is a bios update available to your mobo.
I would also google for your mobo model + disabled cores to see if anytbody has ever done it with it.

Furthermore, If worse comes to worse you could contact MSI and see if it's posible to implement that on a next BIOS update
Sometimes the board is capable of doing things that they simply don't program them to do
msi hasnt released a bios update for that board since back in march. it is running the latest which is v1.7 ill contact msi and see what they have to say.
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post #43 of 59
Try Advanced Clock Calibration/ACC. Mine are hidden there.
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post #44 of 59
Ok, my board is ga990fxa ud5.
in bios it deisplays my cores as these:

core 0
core 1
core 2
core 3
core 4
core 5

If i disable core 4 & 5 , my temps drop a little bit. but if it enable back core 4 & 5 then disable core 2 & 3. my temps jump higher

how comes? i noticed core 2 & 3 are the ones usually failing during prime95 when i try for a higher OC. so i wanted to disable those cores. but when i disable temps raise.
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post #45 of 59
Thread Starter 
Quote:
Originally Posted by Devilmaypoop View Post
Try Advanced Clock Calibration/ACC. Mine are hidden there.
There isn't an option like that on our board. I just got mine a month ago, and had to flash it to the newest bios because the NVRAM was corrupted, so it wouldn't boot. They haven't released any update for a while. Still, wouldn't "idling 2 cores" in Windows still help overclocking?
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post #46 of 59
Quote:
Originally Posted by yappy View Post
Ok, my board is ga990fxa ud5.
in bios it deisplays my cores as these:

core 0
core 1
core 2
core 3
core 4
core 5

If i disable core 4 & 5 , my temps drop a little bit. but if it enable back core 4 & 5 then disable core 2 & 3. my temps jump higher

how comes? i noticed core 2 & 3 are the ones usually failing during prime95 when i try for a higher OC. so i wanted to disable those cores. but when i disable temps raise.
Raise compared to when all 6 cores were enabled of when you disabled 4 and 5?


It can make sense. I stated before that if I'm not mistaken, the cache memories is what draws most the power in a CPU, hence output most of the heat. So if you disable cores 4 and 5 then you would have a cool spot between the enabled cores and the biggest caches, just like somebody has suggested before.
post #47 of 59
Quote:
Originally Posted by lostmage View Post
There isn't an option like that on our board. I just got mine a month ago, and had to flash it to the newest bios because the NVRAM was corrupted, so it wouldn't boot. They haven't released any update for a while. Still, wouldn't "idling 2 cores" in Windows still help overclocking?
No. That would be a complete waste. The way I see it is that if you are running an application that only uses 2 cores, the other 4 will be already idle.
If you use one that can take advantage of all cores, maybe you will have 6 cores at 50% load, and not 4 at 100%.
Just keep them enabled....
post #48 of 59
Quote:
Originally Posted by lostmage View Post
There isn't an option like that on our board. I just got mine a month ago, and had to flash it to the newest bios because the NVRAM was corrupted, so it wouldn't boot. They haven't released any update for a while. Still, wouldn't "idling 2 cores" in Windows still help overclocking?
Yes, it would help with overclocking

Quote:
No. That would be a complete waste.
No, it wouldn't.

The other 4 cores would be able to reach higher clocks if the 2 other were holding them back, since they are now just idling at 800mhz and 1.2v.
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post #49 of 59
Quote:
Originally Posted by EduFurtado View Post
Raise compared to when all 6 cores were enabled of when you disabled 4 and 5?


It can make sense. I stated before that if I'm not mistaken, the cache memories is what draws most the power in a CPU, hence output most of the heat. So if you disable cores 4 and 5 then you would have a cool spot between the enabled cores and the biggest caches, just like somebody has suggested before.
yes temps were going higher than with all 6 enabled. that normal ?
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post #50 of 59
Thread Starter 
And it would reduce the amount of stress on the vregs I would assume since 2 would be idling at a lower voltage, my 4+1 phase wouldn't have to put out as much power at the same OC, I think...
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