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vdroop? screen shot

P

Putz

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Jul 8, 2002
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im using 1.45v in the bios right now (not the same as the screen shot)
the asus utility reports 1.41v
watching the occt charts i noticed this
2008082205h57vcorekd1.png
 
Supposed to disable it for 45nm cpus so im told

although im not sure what the hell this 1.6 spike is..could have something to do with the thunderstorm we had when i was testing i guess lol

2008082316h46vcoreal1.png
 
According to Anand's study, you are supposed to have some Vdroop to protect from momentary overvoltages when the system switches from idle to load. They have an article over there that goes into it.
 
Vdroop is caused by the way the circuits are made.
Any resistance will drop voltage across it.
Everything has resistance.
The higher the current flow, the larger the voltage drop.
Circuits with less voltage drop are being included on motherboards that can be quite effective.

ps dont trust the results from PC voltage sensors to be accurate.
If you really want to know what is going on, get a meter/scope on the voltage rail.
 
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