Does the P35C-DS3R memory overvault?

spluff

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spluff

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Been reading loads on this on other forums and it seems like the P35C overvaults memory by around .1V so

1.8V +0.1 = 2V
1.8V +0.2 = 2.1V
1.8V +0.3 = 2.2V
1.8V +0.4 = 2.3V

If this is the case then this is extremely worrying as it could damage memory. I recently changed my memory to +.3 as the corsair memory is rated at 2.1V but according to this I could really be putting 2.2V into it!!!!!!!!!!

Any other P35C owners please care to comment and have gigabyte got an official word on this (Can OCUK find out?) - I guess gigabyte will deny it as they will have many angry customers.......

:mad::mad::mad::mad::mad:
 
Yes but googling this and reading a lot of forums- a lot of people are sayingt that it aint :S

I dont wanna damage my memory - but I also dont wanna undervolt it and cause instability!
 
Depends if the vdimm sensor as seen in everest, gigabyte ETC, etc. is accurate or not (I would hope so) it shows the same as what you'd expect from setting say +0.1 in the BIOS.

What I do know is I have a set of RAM that needs 2.3v to be stable at 1000MHz on other boards, if I put it in the DS3R at 1000MHz I have to use +0.5 (2.3v) to get it stable if I drop back to +0.3 it isn't stable... which would indicate that there isn't a 0.1v overvolt but not conclusive.

EDIT: Ooops meant +0.5 not 0.4
EDIT2: Ooops [drinks another cuppa] overvolt not droop
 
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Rroff said:
Depends if the vdimm sensor as seen in everest, gigabyte ETC, etc. is accurate or not (I would hope so) it shows the same as what you'd expect from setting say +0.1 in the BIOS.

What I do know is I have a set of RAM that needs 2.3v to be stable at 1000MHz on other boards, if I put it in the DS3R at 1000MHz I have to use +0.4 (2.3v) to get it stable if I drop back to +0.3 it isn't stable... which would indicate that there isn't a 0.1v droop but not conclusive.
Click to expand...

+0.4 should be 2.2v (the default being 1.8v), so if there is a 0.1v overvolt +0.4 is giving you 2.3v as you required, and taking it down to +0.3 is 2.2v.

My P35C-DS3R reads as +0.2v overvolt on vdimm, presuming speedfan (vcore2) and everest (vdimm) are reading correctly. Not sure how much stock to put into 3rd party apps though. Maybe it explains all the trouble I've been having with OCZ memory being faulty.

Anyone got the necessary equipment to give a definitive answer as to what the difference is between indicated vdimm and actual?
 
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Great lets get this topic going......... what would be ideal if gigabyte or ocuk could confirm this or not........

my memory was not stable at +.2 needs 2.1 (+.3). Which I have now set it to and its running fine......

Just worried that it may be overvolting the memory and cause problems in days/weeks/months!!!!
 
Ooops I meant +0.5 (just took it off your first chart without realising you'd adjusted them for a 0.1v overvolt... as I was in the middle of something wasn't gonna reboot to check.
 
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if your memory is based on micron D9s then it should handle 2.3v without any fuss but I'd still put a fan on there just to be sure...
 
Well that may be true, but at least when you overvolted you actually were asking it to, yes? Not so good when it does it when you set what should be safe settings in the BIOS.

It complicates matters if your memory isn't stable and you're trying to eliminate possible causes, an overvolt that you didn't actually ask for probably won't help much. If I set the BIOS at +0.5 (so 2.3v) according to speedfan and everest I get 2.51v instead.
 
Robbie G said:
I bet you most motherboards are + / - 0.1V on their memory settings. That's probably counted as acceptable tolerance in the industry standard!!
Click to expand...

I'm sure there are tolerances but I personally don't know what magnitude they'd be. I mean, if you look at the OCZ I was using http://www.ocztechnology.com/products/memory/ocz_ddr2_pc2_8500_sli_ready_edition_dual_channel
it's rated at 2.3v with 2.35v EVP, then goes on to say:

**OCZ EVP (Extended Voltage Protection) is a feature that allows performance enthusiasts to use a VDIMM of 2.35V without invalidating their OCZ Lifetime Warranty.

That doesn't sound like 2.4v is within expected tolerances to me?
 
Crusader- said:
Well that may be true, but at least when you overvolted you actually were asking it to, yes? Not so good when it does it when you set what should be safe settings in the BIOS.

It complicates matters if your memory isn't stable and you're trying to eliminate possible causes, an overvolt that you didn't actually ask for probably won't help much. If I set the BIOS at +0.5 (so 2.3v) according to speedfan and everest I get 2.51v instead.
Click to expand...



I really think your making a mountain of a mole hill.

0.1V on a ~ 2V setting is 5%, which is within standards. Plus were these measurements using a multimeter? I bet not.


Doesn't hinder over clocking at ALL. If it needs 2.2V setting to be stable then thats it, without this "droop" it would have to be 2.3V, so wheres the problem?

Keep the ram cool and under 2.4V and all will be good.

CR.
 
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