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AMD Phenom II X4 955 Voltage

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Hello everyone,

I have a question. Before I overclock, I would like to know if this is normal.

Here is my setup: my CPU [read title] and my board is MSI 790GX-G65. I am using Xigmatek 750W modular PSU.

By default, voltage is set to normal. With CPU-Z, I notice that on load, the VID can bump up to 1.392V. Is this normal? How much overclock headroom could I possible have?

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CPUs Master
Overclocking Expert

alikum said:
Hello everyone,

I have a question. Before I overclock, I would like to know if this is normal.

Here is my setup: my CPU [read title] and my board is MSI 790GX-G65. I am using Xigmatek 750W modular PSU.

By default, voltage is set to normal. With CPU-Z, I notice that on load, the VID can bump up to 1.392V. Is this normal? How much overclock headroom could I possible have?

1. This is normal

2. It varies from CPU to CPU. If you do not overvolt the CPU at all, expect no more than a stable 20% overclock.
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CPUs Master
Overclocking Expert

alikum said:
Does that mean that in order to overclock, my bare minimum VID should be set to 1.392V?

No. Most of the time the VID is much higher than it needs to be. For example, in my laptop I was able to reduce my VID to 0.9625V from 1.something volts and keep my stock speeds.

That is good news. Thanks Enzo. At first I was worrying that at min 1.392V might limit my overclock potential. Currently on load, with ambient temp @ 30C, my CPU can run up to 52C and 30ish C at idle, using CM V8.
CPUs Master
Overclocking Expert

alikum said:
That is good news. Thanks Enzo. At first I was worrying that at min 1.392V might limit my overclock potential. Currently on load, with ambient temp @ 30C, my CPU can run up to 52C and 30ish C at idle, using CM V8.

Well, it will reduce your potential overclock but I usually find to get anything higher, you need to significantly up the VID while getting only a relatively small return on your CPU clockspeed increase.
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