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Volt Droop

post #1 of 21
Thread Starter 
Ok guys, I have been seeing a lot of talk about volt droop. What is it and what does it effect in our rigs?
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post #2 of 21
it is where your Vcore drops under load and cause instability when overclocking most of the time. the mod used to get rid of this makes your vcore go up when under load
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post #3 of 21
Thread Starter 
Quote:
Originally Posted by G|F.E.A.D|Killa View Post
it is where your Vcore drops under load and cause instability when overclocking most of the time. the mod used to get rid of this makes your vcore go up when under load
How would I know if it's effecting my system?
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post #4 of 21
I don't think AMD rigs suffer much from this, seeing as how it's an Intel thing. It is basically a drop in the Vcore, than what it is actually set in the BIOS. The vcore drops in even more when under load. I still don't understand the whole concept of it either, but I'm sure a more knowledgeable member will inform us.
    
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post #5 of 21
Thread Starter 
Quote:
Originally Posted by aksthem1 View Post
I don't think AMD rigs suffer much from this, seeing as how it's an Intel thing. It is basically a drop in the Vcore, than what it is actually set in the BIOS. The vcore drops in even more when under load. I still don't understand the whole concept of it either, but I'm sure a more knowledgeable member will inform us.
That's good know. I wasn't sure about that.
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post #6 of 21
Quote:
Originally Posted by aksthem1 View Post
I don't think AMD rigs suffer much from this, seeing as how it's an Intel thing. It is basically a drop in the Vcore, than what it is actually set in the BIOS. The vcore drops in even more when under load. I still don't understand the whole concept of it either, but I'm sure a more knowledgeable member will inform us.
So why does my vcore increase on my TA 770 under load but not on my Crosshair.
Unconfirmed but the AMD chip sets may address this.

FYI
TA770: AMD chip set
Crosshair: Nforce
Edited by The Duke - 6/16/08 at 8:05pm
    
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post #7 of 21
vdroop: it when the vcore drops under load. It can be spot on when idle, but droop sometimes by as much as .1v.

Problem: this can cause a perfectly stable rig to become unstable when testing.

I have experienced this on my p5n-e sli board and on this gigabyte board when testing voltage past 1.4v
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post #8 of 21
Quote:
Originally Posted by The Duke View Post
So why does my vcore increase on my TA 770 under load but not on my Crosshair.
Unconfirmed but the AMD chip sets may address this.

FYI
TA770: AMD chip set
Crosshair: Nforce
Well from what I read Vdroop was made by Intel, to reduce power consumption and heat. I haven't had much experience with AMD, but I have heard of other members actually having their vcores rise with their AMD rigs.
    
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post #9 of 21
Thread Starter 
Is there a program I can run to test this? The reason I ask is becuase I have ran a 12 hour Orthos test at 3Ghz. Now I can run the same test with the same settings and fail 15 minutes into it, then I'll run it again for 12 hours with no issues. None of the hardware or BIOS settings changed. I'm guessing there is a voltage issue or software issue. I'm trying to determine which it is. I'm clueless as to why this is happening.
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post #10 of 21
Quote:
Originally Posted by GuardianOdin View Post
Is there a program I can run to test this? The reason I ask is becuase I have ran a 12 hour Orthos test at 3Ghz. Now I can run the same test with the same settings and fail 15 minutes into it, then I'll run it again for 12 hours with no issues. None of the hardware or BIOS settings changed. I'm guessing there is a voltage issue or software issue. I'm trying to determine which it is. I'm clueless as to why this is happening.
I bet if you have the patience to watch the voltage when full loading there will be an additional drop... I noticed that on some systems where as under full load a first drop will occur then occasionally and slight second temporary drop will occur and the likes of Orthos or Prime will fail.
Solution, usually, slightly more vcore.
    
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