X48 Rampage Formula Preview.

[kuebk]

Never had any problems with LCC, but looks like a lot of does.

But back again to my problem I'm not even sure can they run stable at 600mhz cl5, they are rated at 400mhz cl4 - but getting them to work would be awesome.

What about straps?
Does strap 266 requires more vMCH than strap 400? If so what timings are changed when changing the strap others than PL?

Try higher tRFC.

How high?

[Alien Grey]

How high?

OCZ uses 62 for their PC2-9600 memory.

It's possible that you can use less voltage on the NB with strap 400. I use strap 400 for FSB 450MHz and only need 1.33V in the BIOS for the NB with tRD 6.

[kuebk]

OCZ uses 62 for their PC2-9600 memory.

It's possible that you can use less voltage on the NB with strap 400. I use strap 400 for FSB 450MHz and only need 1.33V in the BIOS for the NB with tRD 6.

Ok, thanks. But does tRFC have any impact on performance?

That's what I thought about the vMCH and strap 400, now I'm trying to play with skews.

Anyway probably I won't ever need them to work @ 600mhz, planning to get e8500 and fsb at ~550 1:1 to ram would be gg to me, but seeing my [as I thought till few days ago] crappy ram working stable at 600mhz is what gives me strength to overclock it.

BTW: I remember the talk about some bugged divider but I don't remember was that about Rampage Formula and which divider it was, do you know anything about it A-Grey?

EDIT: About Skews what's better to set? Auto or Normal?

[Alien Grey]

Ok, thanks. But does tRFC have any impact on performance?

Yes, higher timing is lower performance. Try with 62 and if you get it stable you can always try with a lower timing.

BTW: I remember the talk about some bugged divider but I don't remember was that about Rampage Formula and which divider it was, do you know anything about it A-Grey?

1:1 and 12:10 are good.

EDIT: About Skews what's better to set? Auto or Normal?

I leave them on Auto if I don't need to change them. For my 8 X 465MHz, DDR 1239MHz and tRD 6 setup, I have to delay Channel B with 50ps and Channel A Normal.

But it isn't 100% stable. I'm bugged with random failures on this setup, it's basically useless for me to use that one. I'm running at 3.6GHz, DDR 1199 and tRD 6 right now on low voltage to save some money on my electricity bill.

[kuebk]

Yes, higher timing is lower performance. Try with 62 and if you get it stable you can always try with a lower timing. [..]

Can't set 62, only 60 or 65.

Anyway it looks like it worked, now I'm trying to lower voltages. So far I left vDDR at 2.4v and I'm playing with vMCH but looks like I will have to set it to 1.39v what is kinda much in my opinion. Later I will play with vDDR and then with tRFC.

Big thanks for advice with lowerling tRFC, you saved a lot of mine time which I would probably spend for finding best skew combination. ;p