Quote Originally Posted by Think View Post
how do you determine which skews to use? Is there a program that will illustrate which skews are set auto?

I linked to these at OCZ before and maybe you've seen them anyway. There's some useful general info on the various skews.

OCZTony's "Intel FSB Over Clocking, clock skew and the effects it has on system memory"

http://www.ocztechnologyforum.com/fo...ad.php?t=40746

and a bit more here

"Taming the Asus P5E3 Premium" also by Tony.

http://www.ocztechnologyforum.com/fo...ad.php?t=41042


I notice that Tony has an RE now, and has worked through some (OCZ) 4GB kits.

"Rampage Extreme tweaking and tips"

http://www.ocztechnologyforum.com/fo...ad.php?t=44088

Not that much extra info yet but could be worth checking out for general tips as time goes on.

As Tony says in the "Intel FSB Over Clocking.." guide, unless you have the kit "to read the clocks and dial them in", any skews you might need are just down to you to find, as they'll be specific to your individual kit/clocks etc.

If your really stuck you could give this a go -

http://www.xtremesystems.org/FORUMS/...postcount=1128

still works well for me (CTL skews), though there might be more elegant way.

Just a word on the "Memtest86+ method": I only used Test 3 to speed up the trial and error process - the other Tests may or may not give better/more meaningful results in finding the 'best' skews, or for CMD/CLK skews which I haven't used.

Using Memtest86+ like this isn't about testing memory for final stability - as others have said, HCI should be better for that. However, it might take forever to find DRAM skews with HCI, and you can't really use low VDIMM in the same way.

Having said that, I've found that 86+ can find plenty it doesn't like even when HCI passes 1000+%. This could be down to failures in memory that HCI doesn't cover, or some other system instability which the HCI loading doesn't expose. I'm still using 86+ to double check after successful Blend and HCI testing.



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Finally, I do have some fairly unexciting results to post shortly for the Transcends, which I think confirm Stelios' earlier advice of Samsung IC.