The wrong Ram for my mobo?

[ninefoureight]

Just bought a Gigabyte UD3R http://www.overclockers.co.uk/showproduct.php?prodid=MB-159-GI and http://www.overclockers.co.uk/showproduct.php?prodid=MY-161-OC&groupid=701&catid=8&subcat=1391

The rig is booting however i cant get the Bios to 1800Mhz (only 1867), any pointers? Have i bought the wrong ram mobo combo?

 

[RJC]

What speed is your cpu running at and what cpu are you using.

 

[ninefoureight]

i7 920
stock
fsb 133

 

[ninefoureight]

Ive changed the timings manually to 7 7 7 20 and upped the voltage to the DDR3 to 1.6 and it seems to have done the trick. Running at 1866Mhz.

CPU at stock.

 

[SfnX]

overclock that baby!

 

[SMAndy]

According to both the OcUK listing, and the OCZ website, that memory is rated for 1.65v. That may give you some extra stability!

I had a similar problem with my OCZ platinum PC3-10666. Prime95 crashed the PC in 10 seconds with DDR3 voltage at default (1.6v) but setting it to 1.95 as its rated (EVP) made it perfectly stable.

 

[unknownsock]

You should always check the QVL list of your mobo.

I had some problems with my RAM after 8 months, changed to to OCZ reaper's and it was perfect.

 

[ninefoureight]

According to both the OcUK listing, and the OCZ website, that memory is rated for 1.65v. That may give you some extra stability!

I had a similar problem with my OCZ platinum PC3-10666. Prime95 crashed the PC in 10 seconds with DDR3 voltage at default (1.6v) but setting it to 1.95 as its rated (EVP) made it perfectly stable.

Thanks Andy ill make that change today too.

 

[reygjabla]

Thanks Andy ill make that change today too.

I7 920 only takes 1.65v for RAM, maximum, otherwise, you'd fry both RAM & CPU unless, you're using extreme cooling.

 

[ninefoureight]

Thanks ive settled on 1.64v 8-8-8-24 super stable now. Very happy, and temps seem good.

Im just using the stock cooler presently for the i7 once the cash flow gets going again might upgrade to the Corsair H50.