How far can you push your memory?

z1ggy

Lifer
May 17, 2008
10,010
66
91
I can get up to about 960 but once I try to get past 1000 I can't run prime 95 for more than about 2 minitues. Any suggestions? Also post how much increase in speeds and your timings you are getting. Last time I checked I was 5-5-5-15.
 

n7

Elite Member
Jan 4, 2004
21,281
4
81
Loosen tRFC. Try 55-60+.

What speed is your FSB, as in, what ratio are you using to test how far the RAM can go?
Don't try testing for max RAM 1:1 as that'll put a huge strain on the FSB.
Use 2:3; likely best option for your board.
Also make sure you have the CPU out of the picture, so run a lower multi than normal so the CPU is nowhere close to its max.

If you want some examples, i tested 2x2 GB of my Mushkin a while back just to get a quick gauge of how far they could go, & they did...

DDR2-825 4-4-3
DDR2-900 5-4-3
DDR2-1080 5-5-5
I believe i tested with around rated 2.05v for all that.

It's far more of a PITA to get anywhere with 8 GB.
I can run benches @ DDR2-1125 6-5-5 with 8 GB, but it's not stable, & actually getting anywhere over DDR2-1000 with 8 GB is a PITA to get HCI Memtest/LinPack stable when at the higher FSBs i'm running my quad.

Oh yeah, don't rely on P95 for RAM testing; it's not good.

Use Memtest86+ test 5 for quick testing; then run HCI Memtest in Windows or LinX @ max or near all RAM to confirm stability.