OCZ 8GB & Overclocking

Mint_Sauce · 9 Nov 2007 at 16:20

I have two sets of OCZ 4GB (2 x 2GB) PC2-6400C5 Dual Channel Vista Gold Series DDR2 (OCZ2G8004GK) and am overclocking my pc at the moment.

I have a few questions as i'm a bit confused

1) Should this RAM stay running at 800Mhz or below or is going higher going to give me benefits?
2) If I do go above 800Mhz will I need to increase the RAM volts to keep stability?
3) Is it better to have tighter timings or higher Mhz?
4) My CPU is running at 3240 (380x9) which means my Rated FSB is at 1520, is that ok or should I try and get it higher, will this make the system faster overall or just CPU Mhz?

I tried setting my divider to give me a good match with my CPU but the closest was around ~916mhz so over the rated 800mhz, my machine needed a BIOS reset after that heh. Wasn't sure if I should start increasing the juice or if this was a bad thing to do? If I want my ram anywhere near the rated 800Mhz then I have to drop my CPU down or put it up to ~3.4 so that's why I'm wondering.

randal · 9 Nov 2007 at 16:22

O/T but: What the hell are you running in a PC that warrants 8GB of ram??

Mint_Sauce · 9 Nov 2007 at 16:25

Thought I'd need it for the Photoshop work I do (working with 24+ 150mb Tiff files at a time) but seems I never go over 5-6gb Ram usage. 4GB would probably been alright but should hopefully do me for a while!

Mint_Sauce · 9 Nov 2007 at 17:16

After some reading I think I should try and push my RAM over the 800Mhz it's rated for and put some more voltage through it. Also read that 8gb can cause the system to be slower than using 4gb, oops. CPU-Z is telling me the RAM is at 2T even though in BIOS I set it to 1T. I'm believing the BIOS but why would that happen?

Mint_Sauce · 10 Nov 2007 at 13:32

Does anyone have any experience with what to do next?

I've got the cpu to 3400 (425x8) on a 1:1 divider. Changing the divider just seems to push the values right up on the Ram (over 800Mhz). I'm getting memory errors all over the place. I'm running the ram at 2.2v, should I push it higher?

EDIT: I'm convinced the RAM is just not up to the job. Anything a touch higher than 800 and it goes off on one. I think sticking to 3200 (400x8) with the ram running at 5-5-5-15 1T with a 1:1 divider.

Does this look ok for an overclock?

Greenlizard0 · 10 Nov 2007 at 19:12

Totally OT but that's a great set of pics you have (linked in sig

)

onetimeposter · 10 Nov 2007 at 22:31

I can't believe im seeing someone trying to OC 8GB of ram on a desktop board, half the boards out there will not even run 8GB due to MCH load never mind over clocking it.

If you want a stable system consider running 8GB at 667 speeds or a little higher and push the timings down and go the low latency route..also 1t will not work you need 2t due to the nature of how the MCH works and how 1T is implemented.

8GB is a huge load on the chipset, you will be blaming the memory here and the chipset will be failing.

RaiderX · 10 Nov 2007 at 23:07

just run it 1:1 with CPU so 380MHz x 2 so 760MHz at rated timings and voltage,if you need to go higher, leave it at rated voltage and timings and see if its stable first before loosening timings