ocz PC6400.

MrCSW · 22 Dec 2009 at 13:22

HI.
Ive currently got 2 sets of ram.
the 1st is ocz platinum 2x4gb, the second is ocz reaper hpc 2x4gb.
As im having severe problems keeping my system stable with my overclock.. which set would you recommend keeping?.if i was to run only 4gb.

Or should i just get rid and get something better/ corsair??.

regards
Callum

BeeP · 22 Dec 2009 at 13:40

Was the rig was stable overclocked on just 4gb? if so have you tried upping the nb voltage a tad, adding more RAM can often require this.

You are a bit unclear how much RAM you have, I assume you mean 2 sticks 2gb for each set rather than 2x4gb sticks for each (thats 16gb!!!!)

Anyway try upping the nb volts a bit or just being happy with either a lower overclcock & more RAM or a higher overclock & less RAM.

I would keep the reaper stuff if it comes to it.

Kribby2006 · 22 Dec 2009 at 13:46

Ive had nothing but probs with OCZ gold and getting a stable OC on my bros old e6600/680i rig

BeeP · 22 Dec 2009 at 13:57

I think OCZ had/have issues with ASUS boards.

aastii · 22 Dec 2009 at 17:21

I had issues getting my Asus P5N-E SLI motherobard and 4x2GB OCZ gold series PC6400 memory being stable.

To fix it I had to flash my bios to the latest and take the memory voltage from auto to 2.1V, which is what OCZ say you should put it at.

That was 100% stable with:

Asus P5N-E SLI
Intel E6750 @ 3.2GHz
4x2GB PC6400 OCZ Gold series
Dual Asus 8600t video cards

so make sure that your voltages aren't set to auto for your memory and also that you are on your latest bios version

MrCSW · 22 Dec 2009 at 17:38

Hi, sorry I have 8gb total.
2x4gb reaper + 2x4gb platinum.
ive always had this, its completely stable on standard clock speed and has been for circa 18months.
I have tried upping the NB v+ too...but no luck there.

aastii · 22 Dec 2009 at 17:41

csweatherston said:
Hi, sorry I have 8gb total.
2x4gb reaper + 2x4gb platinum.
ive always had this, its completely stable on standard clock speed and has been for circa 18months.
I have tried upping the NB v+ too...but no luck there.

do you mean that you have 2x2GB reaper and 2x2GB platinum?

And I don't see the problem if it is stable already. Or do you mean you are altering your OC or starting one or something along those lines?

If it is a new or different OC, how do you know it isn't the CPU, PSU or mobo making your system unstable?

MrCSW · 22 Dec 2009 at 19:45

oops...sorry.
yes i have 2x2gb of each, ive just re-read what i wrote lol.

When trying to push my q9550 to 4ghz it becomes unstable.... from what has been suggested in the OC+cooling subforum, i have been recomended to run only 4gb (leaving 2 slots free)
I can run standard 2.8ghz fully stable, 3.8ghz but get occasional BSOD/memory dumps....unless i relax the timings to 5/5/5/15, but it still fails occt after 45mins.

hope this makes more sense?

aastii · 22 Dec 2009 at 19:48

So you can't get it fully stable at 3.8GHz?

You sure that your chip hasn't hit its limit, or you have got voltages or memory frequencies/nb frequencies a bit off?

Get it stable at 3.8 first before you go any further, and make sure your temps are ok. When you are overclocking and getting it "stable" are you just doing general use and hoping it doesn't crash, or stress testing? Because without a couple hours on IBT or similar, you aren't really going to know if your system is stable or not

MrCSW · 22 Dec 2009 at 20:08

A couple hours on IBT!!!? will that not severely shorten the life of any cpu?
I can do 3-4 IBT tests(of 10 runs on maximum) without failure.
but OCCT doesnt like something.
As its an Eo chip, i should expect 4ghz...but cant pinpoint the fault yet.

aastii · 22 Dec 2009 at 20:12

csweatherston said:
A couple hours on IBT!!!? will that not severely shorten the life of any cpu?
I can do 3-4 IBT tests(of 10 runs on maximum) without failure.
but OCCT doesnt like something.
As its an Eo chip, i should expect 4ghz...but cant pinpoint the fault yet.

not if you have sufficient cooling. The reason that you should be able to run a stress test for a couple of hours is to ensure the system is stable and that it doesn't overheat. Overclocking has never been proven to shorten the life of a CPU when done properly, ie. when it is ensured that it is stable and that the chip isn't getting too hot.

And just because others have got 4GHz out of it doesn't mean you will. You may be lucky and have a very good chip, just not stable yet, that will hit well over 4, but then again, you may have got one which sucks for overclocking and won't even hit 3.8. It is just luck at the end of the day how far you can put it, with a bit of knowledge of what you are doing, but even the best overclockers with the best hardware can't push a chip further than it is physically happy to go