GSkill HZ 4X1GB Timings or raw oc?

J

Jerukoth

Limp Gawd
Joined
Feb 2, 2006
Messages
268
I have spent the last few days of my vacation changing timings on my EVGA 680i with E6600 running 1600FSB with a 9x Multi for a total speed of 3.6GHZ. Vcore is set to 1.45 but in reality it is about 1.4 flat with the drop on the board.

That said, I have 4 Gig of GSkill HZ ram, and I can get it to run 4-3-3-10 2T at 2.2 volts at speeds of 800

I can get 1066 out of it at 5-6-6-18 2T 2.25 Volts for the 1066 speeds. (NOT fully memtest run yet, only Orthos blend for 20 min on that speed, no errors)

800MHZ at lower timings gives me 6800-7200 Memory banswidth in Sandra Lite

1066MHZ gives me 7200-7450 with looser timings and higher volts.

I'm inclined to set it at 2.2 800 and call it good. No telling what more extensive testing at 1066 will lead too, for all I know, I will have to use 2.3volts or higher to get stability. With the (somewhat scattered) reports of D9 Micron chips dieing at 2.3 and above, I'm thinking 800 is pretty good... Anyone else have similar experiences or opinions? Should I keep pushing it, or is this ram pretty good at tight 800MHZ timings?
 
Have you tried running them 1066, 5-5-5-15 at 2.1v? It shouldnt take more than 2.1v to run 1066....
 
Well, I am new to DDR2 timings and Intel in general...

I am currently running Orthos on the machine I am typing on, 5-5-5-15, 2.1v on the mem.

No issues so far, I'll let you know if there are any.

It's odd that 5-7-7-20 crashed immediately in orthos, and other settings locked up the comp... I didn't even think to set it at 5-5-5-15 and LOWER the voltage at 1066

Wonder why the tighter timings work

EDIT
The cpu is 24 hour Orthos Blend, and Gromacs core stable at 3600 with mem at stock 800. That's not the issue.. :)
 
I run the G.Skill HZ also I have found with 4 sticks that most just think they need to loosen the timings way up. I have found that it is not necessary. It runs like a champ right here. This is with 2.3V to the memory. I have a 90mm fan blowing on my mem at all times.
It benches and folds smoothly at these settings. Try it tighter.
rockinRam.jpg

Should state that this is on a P5W DH.

WZ
 
Considering you have 4 sticks... I'd think you'd be more likely to get tighter timings at a lower OC than a high OC overall.

This is just a thought though. Go for tight timings. But since you have 4 sticks crammed together you really gotta cool them well.
 
Well, I can't get those low timings that you have stable. I do have two fans blowing directly on the chips.

Before the crash, I do get 7900 on the mem bandwidth test with 4-3-3-4-9

4-3-3-4-7 won't get into windows

What are some of the other settings used to attain those speeds? FSB voltage, Vcore, other ram timings, etc..

Thanks!
 
More voltage always helps but I think the gains achived is not worth the risk cos 2.3v 24/7 is like giving your rams cancer.... might die now, certainly within a few months and lucky if they live a year.....

These D9's dont like loose timings, most I will loosen up to is 5-5-5-15..... 24/7 I run mine 4-4-4-x at 500fsb, 2.1v but I dont do stability test, never crashed on me at those settings....
 
Well, I have them set to 800 4-3-3-10 2T

7300+- SiSoft Sandra Mem bandwidth

I backed the CPU down from 3600 to 3500 just because it allowed me to go from 1.4v down to 1.34v and drop 15c off the load temps. Now it runs Orthos blend for an hour, never going over 59c on either core.

I reset the AS5 on my Zalman 9700 as well. 3600Mhz was stable, but ran too hot for me to deal with, I just couldn't stop worrying that the 72c full load orthos temps were going to kill it. lol

anyway, back to the memory...

Seems that the tight timings are better than the increase in speed on the chips, at least for me.
 
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