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E6300 Vcore

post #1 of 10
Thread Starter 
when i have my cpu @ stock (266*7 = 1866MHz) i have it set to 'Auto' Vcore.

How can i find out what voltage this is? CPUZ shows 1.2v but CPUZ is usually lower than what it is set in BIOS.

if i set it to 1.325v @ 3Ghz CPUZ shows around 1.28v

is it safe to assume that CPUZ is 0.8V lower than the Vcore in BIOS?
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post #2 of 10
CPU-Z is not all that accurate when it comes to voltage reading, I get the same issue and to be honest, I haven't found a software program that is accurate to read the Vc in my system at all, and I've tried 3 different ones.

Just make sure you get enough Vc to the CPU when overclocked for better stability, in your case, the E6300 requires very little Vc to achieve a 3.0ghz+ speed.
post #3 of 10
CPUz is accurate in my experience. It is the VDroop that is dropping the core voltage.

If you wanted you could run a little voltage experiment. Bump it up one notch, check CPUs, repeat once or twice and see what the differences are. You might be able to extrapolate the change based an emerging pattern....maybe?
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post #4 of 10
What you set in the BIOS is probably wrong.

Set your voltage, and then look what the BIOS says in the hardware monitor section.

The P5B has this problem, its called vDroop.

When i set 1.4125v its actually at about 1.36v

And i can guarentee that (in my case) its not CPUZ being crappy.

The hardware monitor in my BIOS shows the same voltage, as does Speedfan, Everest and Asus Probe.
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post #5 of 10
Thread Starter 
Quote:
Originally Posted by Nasgul View Post
CPU-Z is not all that accurate when it comes to voltage reading, I get the same issue and to be honest, I haven't found a software program that is accurate to read the Vc in my system at all, and I've tried 3 different ones.

Just make sure you get enough Vc to the CPU when overclocked for better stability, in your case, the E6300 requires very little Vc to achieve a 3.0ghz+ speed.
yeah i can get to 2.996GHz on 1.325v

im just curious as to what my mobo sets the Vcore at for 1.866GHz

Quote:
Originally Posted by Syrillian View Post
CPUz is accurate in my experience. It is the VDroop that is dropping the core voltage.

If you wanted you could run a little voltage experiment. Bump it up one notch, check CPUs, repeat once or twice and see what the differences are. You might be able to extrapolate the change based an emerging pattern....maybe?
i'll give that a go
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post #6 of 10
Quote:
Originally Posted by tUDJ View Post
im just curious as to what my mobo sets the Vcore at for 1.866GHz
oh! at the stock 266 and Auto Vc, here: 0.850V-1.3525V.

Now, the difference you see there is from when you have EIST and C1E enabled, but those two features go out the window once you have to hit 350fsb+.

Right now my C2D is at 2.0ghz idle and it says that it's running with a 1.05v whereas when it's running at the full 3.0ghz, it consumes 1.38v.
post #7 of 10
Thread Starter 
Quote:
Originally Posted by Nasgul View Post
oh! at the stock 266 and Auto Vc, here: 0.850V-1.3525V.

Now, the difference you see there is from when you have EIST and C1E enabled, but those two features go out the window once you have to hit 350fsb+.

Right now my C2D is at 2.0ghz idle and it says that it's running with a 1.05v whereas when it's running at the full 3.0ghz, it consumes 1.38v.
if EIST and C1E are not needed should i disable them?

also do i need virtualization technology enabled?
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post #8 of 10
I'm running at 3.01 Ghz w/ a Vcore of 1.215, should be much less lower actually with Vdroop. Try lowering those voltages some!
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post #9 of 10
Thread Starter 
Quote:
Originally Posted by TheShehanigan View Post
I'm running at 3.01 Ghz w/ a Vcore of 1.215, should be much less lower actually with Vdroop. Try lowering those voltages some!
so 1.215v set in BIOS ?

are you stable for at least 12hours using prime95 x 2 or Orthos?
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post #10 of 10
Quote:
Originally Posted by tUDJ View Post
if EIST and C1E are not needed should i disable them?

also do i need virtualization technology enabled?
On that first part, it's up to you. Personally I like to use it so that the CPU runs at lower clocks when not needed, as it is, a 2.0ghz runs everything smooth and jumps to 3.0ghz when it needs it.

So, what I do is to overclock the CPU to the max with several settings set to AUTO, except for RAM which I have to set to 2.10v manually and timings which are 4-4-4-8 manually set as well. And go from there.

ViiV? you'd have to reset the BIOS in order to have access to that feature in order to disable it. Once the computer has rebooted twice and you access the BIOS, ViiV will be grey'd out, meaning you won't be able to disable it.

Recently I had to reset the CMOS and I did disable it but there's no performance lost nor gain by disabling or enabling Virtual Tech, as I don't see any.
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