Corsair XMS PC4400, TwinX 1024

[Stang_Man]

ok, so i got this ram, and I'm testing it out in my NF7.

it's failing Memtest86 (v1.00), @ 233FSB, 8-4-4-3, with 2.75V (the rated voltage).

is this ram really that sensitive to nForce2 chipsets, and will it do better with the Intel Canterwood chipset?

cause as of right now, it sucks to it's rated 275fsb @ 8-4-4-3 w/2.75V

[JeffPH]

hmmmmmm

i havent seen anyone on the forums using those sticks

[skate2snow]

Probably too much volt for only 233MHz. Theyre rated to do 275@2.75 not 233@2.75. try 2.5 and 2.6

[Stang_Man]

that's a good point skate, but i'll try that out.

[Rooster]

i'd either up the fsb or decrease the voltage a little, maybe to 2.6.

come on marcin, u should know that!!

[Dr.Demonic69]

HMMMMMMM are you guys forgettin that nf7's is limited up to 1.7v on chipset. I suggest u do a vdd mod and raise it up to 1.9 and you might get around 250fsb.

[enzoR]

yea i think its chipset limitation, unless that board is known to go higher

[skate2snow]

But here its not the board, but its the RAMs. You see right there that he have too much volts for the speed if you the rating!!!!

[Dr.Demonic69]

Originally posted by skate2snow
But here its not the board, but its the RAMs. You see right there that he have too much volts for the speed if you the rating!!!!

Ask him to run 200fsb at those timings and i bet you it will pass memtest. Nf7's max stable limit is around 210-223fsb but by no means it can reach 233fsb stable without any vmods.

[xDUCK]

Originally posted by Dr.Demonic69
Ask him to run 200fsb at those timings and i bet you it will pass memtest. Nf7's max stable limit is around 210-223fsb but by no means it can reach 233fsb stable without any vmods.

What are you talking about? My board did 240 stable out of the box, 250 stable with a vdimm mod. 1.7vdd for 250. And my board is by no means an exception - I've seen several threads full of NF7 users with the same experience.

Just because your board can't do it doesn't mean no board can.

[StormPC]

Originally posted by Stang_Man
ok, so i got this ram, and I'm testing it out in my NF7.

it's failing Memtest86 (v1.00), @ 233FSB, 8-4-4-3, with 2.75V (the rated voltage).

is this ram really that sensitive to nForce2 chipsets, and will it do better with the Intel Canterwood chipset?

cause as of right now, it sucks to it's rated 275fsb @ 8-4-4-3 w/2.75V

The fastest computer in the world (OPPainter's FX-51) is using PC3200. Why in God's name would you use PC4400 in an NF7?

PC3500 CL2 is the highest DDR you should use in an A64 or AXP. Everything over PC3500 has higher latencies and is designed for P4 i865 and i875 computers. AMD does not benefit from DDR like that, so not only is it a waste of money it's actually slower because of the latency.

[doctorcod]

agreed, i bought some 4400 just the other week 1gb of it, and rma'd it with all the other intel crap i bought, then got myself an a64 rig with 1gb of mushky lvl 2 3500 which comes in tomorrow!

[sexsymbol]

Originally posted by xDUCK
What are you talking about? My board did 240 stable out of the box, 250 stable with a vdimm mod. 1.7vdd for 250. And my board is by no means an exception - I've seen several threads full of NF7 users with the same experience.

Just because your board can't do it doesn't mean no board can.

Sorry your board is an exception, out of the box 240 FSB very few of them. Out of the box for NF7 is common to get 230 and with d10 bios. I´ve tried like 10 of them and basically all of them did the same. Not even one 240 out of the box. You know your board is an exception because you have one of the highest fsb on nforce2 mobos (congratulations by the way ). I think those 4xxx sticks are not designed for nforce2, anyway try to mod your board and see if it helps.

[StormPC]

I've only had 1 NF7 and it topped out at 237MHz without vmods. This is one of the reasons PC3700+ is a bad Idea on an AMD based motherboard.

[NaHeMiA]

Originally posted by StormPC
The fastest computer in the world (OPPainter's FX-51) is using PC3200. Why in God's name would you use PC4400 in an NF7?

PC3500 CL2 is the highest DDR you should use in an A64 or AXP. Everything over PC3500 has higher latencies and is designed for P4 i865 and i875 computers. AMD does not benefit from DDR like that, so not only is it a waste of money it's actually slower because of the latency.

I cant say that this arguement is entirely true. BH-5 ram requires very high vdimm in order to achieve desirable cas/fsb and high vdimm is a KILLER of A64 chips. This is why bh-5 ram is not always the best choice. If you can get about 250fsb with 3v~3.2vdimm then your fine. But if you have to use 3.5~3.8v then stay away from bh-5.

[Stang_Man]

you guys, i'm running the ram with a divider of, 3/5

the fsb on my NF7 is really low, but the ram is up there, i'm just trying to max out the ram!!

and "why in God's name would I use PC4400 in a nf7?" well, I got the ram for free

[skate2snow]

how did you have those RAMs!!!!!!!!!!!!!!!!????????????

[Gamer]

[retrospooty]

Pc4xxx is the worst possible ram for an Nforce, its just not made for that (in fact I am not sure it should be made for anything at all ) . Get 3200 or 3500 w/ low latency.

[StormPC]

Originally posted by Stang_Man
you guys, i'm running the ram with a divider of, 3/5

the fsb on my NF7 is really low, but the ram is up there, i'm just trying to max out the ram!!

and "why in God's name would I use PC4400 in a nf7?" well, I got the ram for free

Well that's even worse. When you run an AMD based computer with a divider the system takes a huge performance hit. Bench it and see for yourself. 1:1 is the only way to go, especially on NF2.

[NaHeMiA]

For A64 3400+ PC4000 is okay. Even good.

[retrospooty]

Originally posted by NaHeMiA
For A64 3400+ PC4000 is okay. Even good.

Yes, but for a bit less $$$ you can get some PC 3200 cas 2-2-2 and have better performance.

[althes]

yeah i really dont like pc4xxx. bad timimgs for nforce,

[NaHeMiA]

Not guaranteed though.

[Stang_Man]

guys, you're missing the point.

i am wanting to test the max FSB of these chips in a nforce2 setup right now, and then i'll find out the max fsb in a canterwood

thanks Gamer, i'll try them out in a P4C800 and a IC7 asap