overclocking 4sticks wont work

[raging bull]

i've got a question: when i use my two sticks of 256Geil PC4200, i can overclock up to fsb1016, for a core speed of 3.046; when i switch to my two sticks of ocz500 (2x1g), i can overclock at 1000 (250). but when i put all four sticks in, i can only do 880 (220), for a 2.64....am i missing something (obviously i am).

[SRTDodge05]

mite need to losen the timing and up the voltage on the memory.

[raging bull]

sounds eminently reasonable...so i cranked up the voltage to 2.85....but i cant seem to do much with the timings, just cas 3.....3-4-4-8....can't get them any looser on this board i dont think, unless i'm doing something wrong which i probably am....
thanks....i'll keep working on it....

[raging bull]

oh, btw, my bios ddr (which lists 266....400, 500 and 533) is set at 400.....should i set it at 500?

[Rickwell]

Dude you're probably not going to get anywhere by trying to do it all at the same time.Put everything back to default on the ram.Four sticks don't like to overclock as well as two sticks.Someone else can walk you through the overclock.All I'm going to say is."Overclock in baby steps".You need to know what the stable processor speed is.Then you need to know what the ram speed limits are for 4 sticks of ram.Don't slap a bunch of voltage in there because you can't get it work right.I'm sure you'll get it right.Good Luck.

edited

[SRTDodge05]

DDR1 stock voltage was 2.6-2.7v so its not that bad. Set your fsb back to where you had it before you added the other 2 sticks of ram and set the speed in the bios to 333.

[raging bull]

okay....but why 333, rather than 400?

[SRTDodge05]

If you can run the fsb you want when the memory is set to 333 and its stable then you mite have a chip that cant run at a high speed. Download memtest to check your memory out you could have a bad or weak stick.

[raging bull]

well, 333 (actually 320) didnt do much...i could get it to post at fsb250 (1000), but then it just locked up. (figured out 320 is 5:4 -- duh). so i tried 230 and no go, and 220 seems to be all i can get. so i think i'll just pull the two geil pc4200s; 2x1G should be enough anyway....thanks...

[traveler]

Originally Posted by raging bull

i've got a question: when i use my two sticks of 256Geil PC4200, i can overclock up to fsb1016, for a core speed of 3.046; when i switch to my two sticks of ocz500 (2x1g), i can overclock at 1000 (250). but when i put all four sticks in, i can only do 880 (220), for a 2.64....am i missing something (obviously i am).

All four sticks are not matched. I wonder if that has anything to do with it.

I'm going to be playing with 4 matched 1gig RAM sticks of OCZ Platinum when it arrives next week.

Any additional tips from anyone would be appreciated.



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[specmike]

I can't remember the bios options on this board. Is there a way to raise the chipset (aka NB) voltage? You need more chipset voltage with 4 DIMMs. You also need more NB cooling with 4 DIMMs.

[raging bull]

no i dont think there's a way to increase chipset voltage: just increasing the cpu voltage, the ddr reference voltage, and the agp/vddq voltage. i've cranked up the cpu voltage and ddr voltage....
i've got the side of my box open, for better ventilation, but no extra cooling...
i started out with the two geil sticks, then bought the 2G OCZ...and then decided, heck, with four slots, fill all four.....but the system hasn't worked that smoothly since.....sometimes far cry just closes down, which i presume is some memory issue....

[SRTDodge05]

I had the same board with 4 different memory chips and i didnt have any trouble. Could adding more memory and trying to overclock your system make your powersupply not handle the load?

[SRTDodge05]

Are you using the latest bios? Asus cameout with bios back in the day that fixed memory problems.

[raging bull]

my enermax 465 should be enough power....but the bios, hadn't thought of that. just checked and there are half a dozen newer than the v 1004 i've been using. i'll try that. thanks...