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New G0 - It's the dog's danglies

If you look at the Voltage CPU-Z is reporting now it shows 1.326V as opposed to the 1.296V earlier. I have not changed the CPU voltage in BIOS.
Click to expand...

cpu-z 1.49 shows correct voltage for G0 chips now :)
 
Vdrop - The term used to describe a voltage drop from the one set in the bios to the 'actual' reported voltage.

I have a drop of 0.05v from what I set in the bios

Vdroop - The term used to describe the difference of a voltage reading of a component under idle to a component under load.

i.e

My board droops 0.05v under load

;)
 
This can't be that difficult

At idle CPU-Z shows 1.328. Under load it shows 1.296. That's a differential of 0.032V.

So to me that's Vdroop.

In addition to that the BIOS Setting of 1.375 showing as 1.328 under idle with CPU-Z, a differential of 0.047V is Vdrop.

As an aside CPU-Z 1.49 is mentioned above. I can only see a link to 1.40.5 on the CPU ID website. Anyone have a link to 1.49 ?
 
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Asus P35 and 680 boards (aswell as other brands) droop from what you set in bios to what you get in Windows @ idle and again on load.

I set 1.6v in bios, I get 1.55v in Windows @ idle, it droops more to 1.52v on load, a simple pencil mod fixes this totally.

The new Asus Blitz models have a circuit and bios setting to stop droop, hopefully will be on their future high end mobos.

BTW, CPU-Z has never read my AMD Crosshair or Intel Striker E set up correctly for Volts.
 
w3bbo said:
iirc its actually in the intel specs to have vdrop/droop. Why I have no idea.
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Yep, from what I've read it was to reduce the stress on the CPU on load.

:confused:

If it's stable at the reduced voltage then why use a higher voltage when idle?

Jokester
 
Droop is a bad thing, its because most mobos do not have a circuit and bios settings to avoid. (cost saving).

Who wants to 2nd guess at what bios volts is needed to get stable in Windows at X Clock and X Overclock, and I had same droop on the AM2 Crosshair, infact it was massive so its not tied to only Intel mobos.

We had to use AVR's (Automatic Voltage Regulators) at work to avoid droop, they had Trim pots for gain and Droop

If you started plugging devices into mains and the volts dropped way bellow the 220v-240v they require you could get problems.
 
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helmutcheese said:
Droop is a bad thing, its because most mobos do not have a circuit and bios settings to avoid. (cost saving).
Click to expand...
Intel boards specifically have circuitry to add Vdroop in, it's not something to cut costs as it's an Intel specification. Most if not all Intel boards can be modified by adjusting a resistance in the PWMIC circuitry to tell the voltage controller not to droop with increasing current.

Asus were particularly bad for it, as they actually followed the required Intel specifications.

Jokester
 
When I say INTEL Mobos, I mean one that use a Intel CPU ie not AMD CPU's.

I do not mean Mobos made by Intel, sorry for confusion

Asus have changed that with Blitz's, there is a circuit and bios setting to eliminate droop.

Asus Mobos were actually famous for overvolting, ie NF2 etc.
 
Sorry when I say Intel mobos I mean ones that use an Intel CPU as well. The P5K Deluxe boards have the same option as well, it basically toggles on/off the Vdroop circuitry. The lesser P5K boards can have the Vdroop circuit overriden by adjusting a resistance in the circuit.

Jokester
 
Whilst I'm very interested in all aspects of droop / drop :D, this thread is going off topic somewhat. It's not intended to be a discussion on the intricacies on Intels voltage specs.
 
Hey!

I've just got my QUAD core Q6600 it arrived today from OCuk :)


FPO =

L725B020 Pack date 08/16/07


Same as OP.

Whats the likelihood of getting 3ghz on air with 1.3V?

It says on the box 1.35V max.
 
I wasn't confused was misinformed someone posted that you need
to add +15c to coretemp 0.95.0 for the new G0 chips
but that it is correct on 0.95.4.
 
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You wern't misinformed.

The TDP for G0 chips is incorrectly reported by coretemp by 15c iirc so its temp reading is 15c off. Speedfan is wildly inaccurate in any case and sometimes is the same as coretemp sometimes its below ambient (which as we know is impossible unless phase is used). The new coretemp apperently corrects this;)
 
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