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RAM voltage

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kkpudge7

Member
Joined
Jul 2, 2008
Location
Michigan
Hey all, I'm trying to get my rig up to 3.2Ghz from 3.0. I had it running stable in prime95 with no errors for 15 minutes, but i stopped the test when i realized that my ram was only tested at 1.9v on g skill's website. Here are the settings that I ran

Vcore= 1.20625
CPU GTL= auto
VTT (FSB V)= 1.10
NB V= 1.25
SB V= 1.05
RAM V= 2.2

I tried running the ram at its 1.9v stock voltage, and I get a thread#1 error in about 10 seconds. I tried it at 2.0v and I got multiple errors while trying to boot.

Is my ram safe at 2.2v? I dont really want to fry a $280 set of ram thats only 2 months old lol.
 
It's hard to say with them being rated at 1.9v. But in general DDR2 should not be pushed above 2.3v or damage will occur, but not all RAM is made the same. I would still check with G Skill about that rating though.

FWIW all my DDR DIMMS are rated at 2.2v and refuse to work at anything less. They are from Patriot and are rated at that voltage.
 
Any ideas on what I can do to get this thing stable if the RAM is left at 1.9v?
Ive had the Vcore up around the 1.28-1.31 range, and it was still unstable. Maybe up the FSB volts a little?
 
kkpudge7, you're running those G.Skill DDR3 sticks in your sig? Put them back to their rated voltage, and try increasing the NB voltage a notch or two.
 
Yup, I'm running 2 sticks of DDR3 PC12800. Rated at 1600Mhz. I'll up the NBv a lil and see what that does. I'm on my way to class right now, so I'll report the findings when I'm done with classes for the day.
 
Ugh, Im taking a break because I'm starting to get frustrated with this. and bad things usually happen when frustration kicks in. So i'm walking away for an hour or two. Anyway I kept close track of what I was doing so here you guys go...

Over Clocking Log

Set 1
CPU vcore= 1.18750v
VTT=1.10v
NBv=1.25v
SBv=1.05v
RAMv= 1.9v

Idle @ 38c
load @ 51c

core1 failed in 3 minutes

Set 2

CPU vcore=1.19375
VTT=1.10v
NBv=1.25v
SBv=1.05v
RAMv=1.9v

Idle @ 38c
Load @51c

core3 failed in 1 minute
core2 failed in 2 minutes


Set 3

CPU vcore=1.2000
VTT=1.10v
NBv=1.25v
SBv=1.05v
RAMv=1.9v

Idle @ 39-40c
Load @ 52c

core3 failed in 10 minutes


Set 4

CPU vcore=1.20625
VTT=1.10v
NBv=1.25v
SBv=1.05v
RAMv=1.9v

Idle @
Load @

Imediate failure on 2 cores


Set 5

CPU vcore=1.2000v
VTT=1.10v
NBv=1.27v
SBv-1.05
RAMv=1.9v

Idle @ 37c
Load @

imediate failure on all cores


Set 6

CPU vcore=1.2000
VTT=1.10v
NBv=1.31v
SBv=1.05v
RAMv=1.9v

Idle @ 37c
Load @

imediate failure on all cores


Set 7

CPU vcore=1.2000v
VTT=1.14v
NBv=1.25v
SBv-1.05v
RAMv=1.9v

imediate failure on all cores



Set 3 gave me 10 minutes on large FTF in p95, i tried tweaking from there, and it just got worse. I dont think its the RAMv though, because i got the 10 minutes in set 3 with the RAM at 1.9v
 
I'm not really sure if this is in the right forum anymore, but for the sake of not cluttering up the boards I'll just keeping using my same thread.

Ive managed to get some stability @ 3.2Ghz. My last p95 test went 16 minutes with no failures. So I upped the Vcore one more click to put me at 1.2125.

I reset everything else to "auto" though. My FSB, VTT, RAM, and SB voltages are all on the auto setting. I've read that the system usually sets these too aggressive when the auto setting is left, but I figured I would go back to square one, and at least get my Vcore to where it needs to be.

My question is what should I move onto next? After I get the system stable at 3.2Ghz with everything on auto. I would like to key in those myself so that nothing is being over/under powered.

thanks

casey
 
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