16gb Corsair Vengence problem

umboma · 28 Mar 2012 at 11:01

Hello all,

I've just put in new ram moved from 8gb Geil PC3-12800 ram, To Corsair Vengeance Blue 8GB (2x4GB) 16GB total DDR3 PC3-12800C9 1600MHz,

I've upped them to 1600 MHz with voltage of 1.55v but the comp sometimes restarts by it's own, I was thinking due to having 16gb in not 8gb do I need to up the voltage a little bit more, I dont want to just do it without professional help as on OCUK it says XMP 9-9-9-24 values at 1600MHz, 1.50V
on the description.

Many Thank,

HeX · 28 Mar 2012 at 11:08

What is the rest of your system?

umboma · 28 Mar 2012 at 11:13

Sorry I should have mentioned it,

I5 2500k not clocked yet.
Antec Kúhler H2O 920
Msi P67A-GD65
Gainward Nvida GTX680
XFX Pro 750W Core Edition '80 Plus Bronze' Power Supply
Crucial RealSSD C300 64GB
2x Samsung SpinPoint F1 1TB SATA-II 32MB
Silverstone Raven 3 RV03B-W Full Tower

wazza300 · 28 Mar 2012 at 11:14

you can use upto 1.5750v dram voltage,i never had issues with 8gb of that ram

umboma · 28 Mar 2012 at 11:20

wazza300 said:
you can use upto 1.5750v dram voltage,i never had issues with 8gb of that ram

Do you have 8gb or 16gb? with 16gb do you have to up the voltage a little bit more?

HeX · 28 Mar 2012 at 11:22

Hmmm, not sure of your problem then, I have 16GB of the same stuff in a P67 board running fine at 1.5V 9-9-9-24 2T 1600MHz.

Did you buy a 16GB kit, or two 8GB kits?

wazza300 · 28 Mar 2012 at 11:23

im using samsung ram now 16gb and yeah you do,well i had too

best way to find out is download super pi and run a 32m test,if it stops with an error add one/two clicks of dram voltage and retest untill it passes,then your pretty stable

ChocolateStarfishRammer · 28 Mar 2012 at 11:42

I run my Corsair 16gb at 1866mhz, 1.6v, 10-10-10-24 2T

Runs perfect.

1.6v is the max volts you want to go to.. thats from intel, not me.

umboma · 28 Mar 2012 at 11:42

HeX said:
Hmmm, not sure of your problem then, I have 16GB of the same stuff in a P67 board running fine at 1.5V 9-9-9-24 2T 1600MHz.

Did you buy a 16GB kit, or two 8GB kits?

I brought 2x 8gb sets from OCUK...

umboma · 28 Mar 2012 at 12:50

Just a quick update, I've upped the core to 1.6v and all's working well..

Thank you all for helping

wazza300 · 28 Mar 2012 at 13:10

im using 1.63 @2133mhz so you will be fine imo

DennisMenace · 30 Mar 2012 at 18:59

umboma said:
Just a quick update, I've upped the core to 1.6v and all's working well..

Thank you all for helping

TBH, the RAM should run at the quoted spec., ie. 1600/C9 @ 1.5v - if not I'd DSR/RMA it. (Are both kits the same batch?)

Your PSU/mobo shouldn't be giving you any voltage stability issues, but I've heard of people needing to add QPI/Vtt (or whatever MSI call it, it's set at 1.05v) to stabilise their RAM when all four DIMM slots are used. This might be preferable to overvolting the RAM itself (Vtt affects the IMC, and there's a "Golden Rule" that Vdimm - Vtt <= 0.5v, so don't go higher than 1.55v Vdimm without bumping Vtt a little).