RAM Issues

W

WillSpengler

New Member
My PC has been having some RAM issues:

Q6600 + Thermalright Ultra Extreme 120 cooler
ASUS P5K Premium motherboard
4x 1Gb Corsair Dominator XMS2-8500 RAM
XFX 8800GTX gfx card
Corsair modular PSU
Antec P182 case

Computer started being flakey when all the RAM was in, so I've started running memtest on the modules.

I completed running a test on one of the modules, but something was pretty wierd.

Corsair stated:
1066Mhz, CAS 5-5-5-15

Memtest states:
534Mhz, CAS 5-5-5-18

Why is my RAM showing up as being that speed? Is this normal?
 
Corsair stated:
1066Mhz, CAS 5-5-5-15

Memtest states:
534Mhz, CAS 5-5-5-18
Click to expand...
534x2 = 1066 (roughly :P). That's normal. Corsair and other manufacturers list the DDR rate not the real rate so that the RAM looks faster. It's effectively 1066MHz but the actual clock speed is ~533.

If memtest doesn't list any errors after a few passes, say 3-4, then you can assume that the memory is OK.

One thing you may have to do when using all 4 RAM slots is increase the voltage 1 increment.
 
Many Asus motherboards don't like all 4 DIMM slots filled. There are laterally thousands of posts on the Asus forum about this issue.

The best thing to do is manually set ALL timings in your BIOS and just like Cromwell said...try running the RAM at 1.9v and see what happens. If you still have issues, bump it up to 2.0v and see what happens.

Messing with voltages in ANY setting can do permanent damage to hardware. The suggestion above is what I would do:)

http://vip.asus.com/forum/topic.aspx?board_id=1&model=P5K+Premium/WiFi-AP&SLanguage=en-us
 
Cromewell said:
534x2 = 1066 (roughly :P). That's normal. Corsair and other manufacturers list the DDR rate not the real rate so that the RAM looks faster. It's effectively 1066MHz but the actual clock speed is ~533.

If memtest doesn't list any errors after a few passes, say 3-4, then you can assume that the memory is OK.

One thing you may have to do when using all 4 RAM slots is increase the voltage 1 increment.
Click to expand...

I didn't think that would happen if it was just the single channel I was using, but anyways. Cheers for pointing it out :o

I'll try bumping up the voltages slowly and see what happens. Cheers guys :)
 
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