Vcore fluctuates. Pc wizard is probably just reading what you BIOS is told to set the Vcore to, and not actually reading the Vcore. But .07 is a large flux....
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Nice, I'm just learning so Ive been going slow for 2 days now
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when I'm not at work but.
I'm running sp2004x2 right now. Its at 1.4 vcore
4205.2 MHz x14.0
FSB 300.4
BUS SPEED 1201.6
42c 20 min into stress test
just crashed
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I had 4066 stable. I think I need to up the vcore more, thats why I was asking
I'm running sp2004x2 right now. Its at 1.4 vcore
4205.2 MHz x14.0
FSB 300.4
BUS SPEED 1201.6
42c 20 min into stress test
just crashed
2
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Intel and AMD Processors for some time now have carried a technological enhancement called "Multiple VID". Multiple VID (Voltage IDentification)is a Code Set Instruction for raising and lowering Processor Core Voltages [utilizing a 6-bit digital-to-analog converter (DAC) for Intel and a 5-bit DAC for AMD] housed in the CPU. This DAC uses a VID-code provided by the CPU to program the desired CPU core voltage. Thus the regulated output voltage can be dynamically adjusted by changing the VID-code "on the fly" and giving a "boost' to the core voltage when needed or dropping it when not needed. This helps to keep the processor cooler as lower voltages usually equal lower processor operating temperatures.
You will not have a static voltage with modern processors and any program that gives you a static readout is reading from BIOS the core voltage setttings and restrapping them. Do not trust any program that gives you a static readout of your voltage. The best programs (that I have found) for the "On the Fly VID" are SpeedFan and Motherboard Monitor. ASUS has a PC Probe II that works quite well but I can not speak for other motherboard manufacturer's utilities.
Do not worry about this movement. Don't be a "Spike Obsessor"
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j/k
R
Originally Posted by Nasgul I have the same issue, at idle the Vc jumps all over the place, once I start to do some heavy task then the Vc is red accurately. |
You will not have a static voltage with modern processors and any program that gives you a static readout is reading from BIOS the core voltage setttings and restrapping them. Do not trust any program that gives you a static readout of your voltage. The best programs (that I have found) for the "On the Fly VID" are SpeedFan and Motherboard Monitor. ASUS has a PC Probe II that works quite well but I can not speak for other motherboard manufacturer's utilities.
Do not worry about this movement. Don't be a "Spike Obsessor"
R
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Its not the movement that bothers me, its the fact I want to up my vcore and it says I'm upping to one thing in the bios settings but then when I get to windows my vcore is a lot higher then what I wanted. If I'm just idling and it tells me I'm at1.5 when I set it to 1.43 it freaks me out. I don't want to fry anything!
Don't be a "Spike Obsessor" j/k |
I have the same board you do and noticed a similar thing. Posted about it in the PSU area as I was wondering if my PSU was bad.
I set my BIOS to 1.2875 (IIRC) and in PC Probe, AIBooster, CPU-z, ect, all read as idleing at 1.31-1.34. Under load, this drops to 1.23-1.24. I up my Vcore to 1.3 in BIOS and it still shows 1.34 or so at adle, then it drops to 1.26-1.28 under full load.
As has been mentioned here, I was told this is normal....
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However, I don't have the discrepencies you are seeing..... PC PRobe 2 and AIBooster are both showing the same Vcore as CPU-z, sometimes they fluctuate a little off, 1.31 on PC Probe while CPU-z says 1.34.....but then they match up again, it seems like just a polling time delay........
I set my BIOS to 1.2875 (IIRC) and in PC Probe, AIBooster, CPU-z, ect, all read as idleing at 1.31-1.34. Under load, this drops to 1.23-1.24. I up my Vcore to 1.3 in BIOS and it still shows 1.34 or so at adle, then it drops to 1.26-1.28 under full load.
As has been mentioned here, I was told this is normal....
However, I don't have the discrepencies you are seeing..... PC PRobe 2 and AIBooster are both showing the same Vcore as CPU-z, sometimes they fluctuate a little off, 1.31 on PC Probe while CPU-z says 1.34.....but then they match up again, it seems like just a polling time delay........
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I'ts not about worring but the Vc fluctuation, mostly seen in the P5WD2-Premium and P5WD2-E Premium, I'm not sure about the 945Ps because AFAIK when I had my 650 in the ABIT AG8-3rd Eye, the Vc was alway dead on....1.223v-1.388v.
Put the 650 in the P5WD2-P and Vc was fluctuating a lot till I started to do some heavy task then the AIBooster and CPU-Z showed the correct Vc. Put my new/used 660 and it did the same thing....CPU VID? Weird because no CPU Vc fluctuation in my AG8-3rd Eye 915P, always accurate.
There's a Vdroop for the P5WD2-Premium but I'm not doing that, I may screw something up and be out $200.
Originally Posted by Ropey Do not worry about this movement. Don't be a "Spike Obsessor"
R |
Put the 650 in the P5WD2-P and Vc was fluctuating a lot till I started to do some heavy task then the AIBooster and CPU-Z showed the correct Vc. Put my new/used 660 and it did the same thing....CPU VID? Weird because no CPU Vc fluctuation in my AG8-3rd Eye 915P, always accurate.
There's a Vdroop for the P5WD2-Premium but I'm not doing that, I may screw something up and be out $200.
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I got 4.2 solid today
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My first overclock
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have you tried getting 4.23ghz out of that 560 yet? My 660: look at the Vc fluctuation. |
My first overclock
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Here's the thing Nasgul. I do not trust any readout that gives "solid readings" as the VID does not allow the CPU solid instructions for PLL readout of the Vcore. It is a multiple instruction set and if you are doing multiple tasks (remember your cpu in the background is performing multiple tasks at any rate) then your Vcore will fluctuate. It is only when the system is performing intensively does the Vcore stabilize and it stabilizes at the needed Vcore for the intensive application and this Vcore can change with different intensive applications.
Thus it is more "weird" that your AG8-3rd Eye 915P does not fluctuate. This is not an accurate reading of the CPU VID. Yes, a vdroop will deal with droop voltages but much of the droop modification is geared towards stabilizing the readout, not the VID flow. So if one wishes a stabilized readout then they can perform a droop mod but if the droop has to do with the CPU VID instructions then they are not accomplishing anything other than stabilizing the readout of the PLL.
Great Overclock Stump
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R
Originally Posted by Nasgul Put the 650 in the P5WD2-P and Vc was fluctuating a lot till I started to do some heavy task then the AIBooster and CPU-Z showed the correct Vc. Put my new/used 660 and it did the same thing....CPU VID? Weird because no CPU Vc fluctuation in my AG8-3rd Eye 915P, always accurate. |
Thus it is more "weird" that your AG8-3rd Eye 915P does not fluctuate. This is not an accurate reading of the CPU VID. Yes, a vdroop will deal with droop voltages but much of the droop modification is geared towards stabilizing the readout, not the VID flow. So if one wishes a stabilized readout then they can perform a droop mod but if the droop has to do with the CPU VID instructions then they are not accomplishing anything other than stabilizing the readout of the PLL.
Great Overclock Stump
R
That sounds right, as I said, my readout jumps a bit normally, but as soon as both CPU cores are loaded at 100%......it doesn't move really.
As long as my system tests stable, I'm not going to worry about it
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As long as my system tests stable, I'm not going to worry about it
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