How memory frequency affects latency - Tighter timings vs. Higher speeds?

[Mr. Smith]

You really ought to read this, the table allows you to find the sweet spot very easily...

Enjoy

 

[equk]

nice

some excellent info there

wonder if I can get my RAM at PC2-8000 on CAS5? am on PC2-6400 CAS4 atm

I got it to DDR-900 on CAS4 before

 

[Mr. Smith]

Wishful thinking lol

I'm almost at pc2-9200 with CAS5 - pretty smoking hot for some sub £100 sticks = me

 

[equk]

just been looking around and it looks like it's do-able on my RAM

might give it a go later

was just reading another site that got 1300Mhz out of them

 

[MikeEnIke]

I think this deserves a Sticky, all in favor say "Aye".

 

[ionicle]

Aye!

 

[Mr. Smith]

Aye!

I came in here to bump this thread, as more of you should read this. Mmmkay.

 

[equk]

I got the ram to PC2-8000 speeds with the same voltage

(it came up on bootup as PC2-8500 Dual Channel Interleaved tho)

I just can't seem to get it to work at PC2-8000 with the cpu at 3.2ghz works fine at PC2-6400 cas4 tho

Think it's something to do with the mobo

 

[Mr. Smith]

You can acheive 1000mhz at 2.6ghz but not 1000mhz at 3.2ghz...

Is the ram stable at 2.6 - memtest, orthos ram stress etc?

More juice to the memory controller ftw

 

[equk]

I tried putting the mem to 2.2 and 2.25 volts but it didn't make any difference but with the cpu at 2.66 it boots up fine PC2-8000 cas5 (2.1v).

Seems a bit strange

I only gave it a quick test in super_pi just to see if it booted ok etc.

The only difference is the divider so it should be ok.

It doesn't even POST with the cpu at 3.2ghz tho