Ram Timings

[1933 Poker]

Hello.
What are good Ram timings to have recently I set mine from 55518 to 57724 and it worked until I tried overclocking the cpu then it wouldn't boot and I had to reset it. SO what now?

Also the Ram I am using is Kingston HyperX 4x2GB modules set at 1066MHz.

 

[sneekypeet]

5-5-5-18 is better than 5-7-7-24. To overclock drop the ram divider / boot strap to take it out of play for now. If you set the bios to boot the ram at say 800MHz, it will give you room to creep back up to 1066.

 

[MT Alex]

Okay, is ddr2 800 at 4-4-4-16 more desireable than ddr2 1066 at 5-5-5-15? I am looking to by a set of Hyper X like Poler's, but don't know which is better lower latency or higher frequency. The ddr2 stuff is damn expensive now

 

[1933 Poker]

5-5-5-18 is better than 5-7-7-24. To overclock drop the ram divider / boot strap to take it out of play for now. If you set the bios to boot the ram at say 800MHz, it will give you room to creep back up to 1066.

when you say the nay is better do you mean, by calculations or performance or, both?

 

[JrRacinFan]

Okay, is ddr2 800 at 4-4-4-16 more desireable than ddr2 1066 at 5-5-5-15? I am looking to by a set of Hyper X like Poler's, but don't know which is better lower latency or higher frequency. The ddr2 stuff is damn expensive now

May be able to take spec'd 1066 CL5 sticks down to 800 CL4. If you can buy 1066 CL5 sticks at the cost of 800 CL4 sticks, I'll take the 1066 anyday.

IF you can still find them, grab a 2x1GB kit or 2 of Buffalo Firestix. I have seen claims of 1300 CL5 on them.

when you say the nay is better do you mean, by calculations or performance or, both?

I can guarantee you he means both.

 

[1933 Poker]

I can guarantee you he means both.

Thanks. That answers my question.

 

["Born"_*Leader**]

I thought higher latency meant better performance, but clearly this is not true here.

 

[captainskyhawk]

funny problem, it is. I got the same kind of problem -- got some Mushkin DDR21066, can't get them to run at 1066 (5-5-5-15) no matter what, but I can get them to run a 4-4-4-12 at DDR2900, and you get almost the same amount of bandwith out of them.

 

[TheLaughingMan]

Okay, is ddr2 800 at 4-4-4-16 more desireable than ddr2 1066 at 5-5-5-15? I am looking to by a set of Hyper X like Poler's, but don't know which is better lower latency or higher frequency. The ddr2 stuff is damn expensive now

At those speeds and latency, you would see no difference in performance. Latency has to be increased when clock speed goes up. So RAM at 800 Mhz 4-4-4-16 ~ 1066 Mhz 5-5-5-18.

As the second set is 1066 Mhz @ 5-5-5-15, it should be slightly faster, just not enough to matter.

As for people OCing their RAM, you may want to bump up the voltage on the RAM a bit to stabilize it. If that doesn't work, you have to loosen the timing a little.

 

[Corduroy_Jr]

sometimes having setting set to auto is not always the best for stability,there's alot of factors to why it wont automatically run at 1066mhz, motherboard not likening that kind of memory, or bios update, set memory to manual, 5.5.5.18 2T, set trfc to its highest, lower cpu multi, lower htt, not sure what its called for intel, keep raising fsb tell u find max clock for your memory