In memtest86. I been running all tests for 4 hours and it came back with 118 errors. I am running Samsung PC2700 and Crucial PC2700 at 166FSB@max timings. I am sure this aint normal. So means I should back the timeings to default or at least between default and turbo(on my epox 8k3a+). Getting ready to run prime95 in the background to see if it gives any errors.
118 errors
- Thread starter Sniper82
- Start date
DannyBoy
Diamond Member
There have been cases in the past running multiple dimms from different makers has led to problems. But before you go selling either stick, what do you mean by max timings? If you have set your timings aggressively, I would back them down and try again. Also, what's your Vdimm set to? Each stick may be individually rated to run a certain speed, but when you introduce more than 1 dimm and factor in the sticks being from different makers, you can run into problems.
Chiz
DannyBoy
Diamond Member
vdimm is at default 2.5 I think. Also when I say max I meant 2-2-2-4 or something like that. One of the sticks just ain't wanting to run at those timings at 166. Prime95 wouldn't last 2 mins before giving a error. I backed the timings back off to fast setting(on my epox) and prime95 is running perfect in the background.
I think its the Cruicial thats crapping out. No biggie though.
I think its the Cruicial thats crapping out. No biggie though.
That's most likely your problem. Although Crucial and Samsung are quality DRAM makers, they produce chips for the mass market, ie. bulk. They set the rated specifications for their dimms conservatively to improve yields and to cut costs on wastage (modules fab'd for a certain speed bin but don't make the cut), so what you end up with is a spectrum of chips that will perform within the rated specifications. Some modules will perform better, some will perform worse. Your RAM timings are set way too aggressively for PC2700 from either of these makers. You would rightfully expect to hit those settings from "premium" or "designer" RAM, like Corsair XMS, Kingston, HyperX, Geil, OCZ, Mushkin, etc, but these makers hand-pick and test the modules from the bulk masses produced by the big DRAM makers (like Samsung, Micron, Winbond, Nanya, etc.).
Anyways, enough rambling. At PC2700 speeds, I would set your CL to 2.5, the other settings to 3-3-7-2T, Optimal, or SPD as someone else suggested. Those are probably pretty close to those chips' rated timings and then I'd give memtest another spin. You can also try bumping up the voltage to 2.7V max, although that generally doesn't improve stability, it allows for higher FSB/mem frequency overclocks.
Chiz
1) Try the pair with default timings/voltages. (If errors then goto 2)
2) Try each stick alone with default timings/voltages. (If error then goto 3)
2b) Try each stick alone with agressive timings/voltages. (If error then goto 4)
3) RMA the stick that errored. (exit)
4) Reduce timing/voltage to "mildly" agressive. (goto 2b unless "mildly" agressive = 2 at which point goto 3).
Thorin
2) Try each stick alone with default timings/voltages. (If error then goto 3)
2b) Try each stick alone with agressive timings/voltages. (If error then goto 4)
3) RMA the stick that errored. (exit)
4) Reduce timing/voltage to "mildly" agressive. (goto 2b unless "mildly" agressive = 2 at which point goto 3).
Thorin
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