8gb DDR2 o/c question: vista 64bit/e8400

cpatain-chaos · 14 Dec 2008 at 14:37

(rig as per sig )

is 8 gb ( 4 x 2gb ) any trickier to o/c than 4gb ( 2 x 2gb ) just moved to Vista Ultimate 64bit and wondered if picking up another set of identical ram would mean I'm more likely to be limited on the o/c front ?

cheers

helmutcheese · 14 Dec 2008 at 18:10

Depends on Mobo, on a P45 no issue if Memory is supported it can do 16GB.

littlepuppy · 14 Dec 2008 at 18:31

Hard to say.. You really would need to do some testing... It does place a greater strain on NB and I had some right fun and games getting 8GB stable with x48.

helmutcheese · 14 Dec 2008 at 18:40

I have said this is many threads.

I need 1.1v NB to get 1600 QP FSB with 8GB (same as 4GB and the Min the NB Voltage can go).

It only needs 1.2v NB to get 2000 QP FSB with 8GB (same for 4GB).

Again depends on your Mobo Chipset, the P45 was made/advertised for up to 16GB.

Conan257 · 14 Dec 2008 at 20:18

Filling all the slots sometimes gives problems when overclocking as its easier for the memory controller to access less slots.

helmutcheese · 14 Dec 2008 at 21:28

ONCE AGAIN for anyones benefit, Has not been an issue for me, P45 is made for 16GB, others AFAIK are not and do not advertise to run 16GB.

cpatain-chaos · 14 Dec 2008 at 23:28

well thanks for the input chaps as I'd guessed it's likely to be a suck it and see approach

cheers

sunderland · 15 Dec 2008 at 12:16

can the p35 boards run 8gb ok then

helmutcheese · 15 Dec 2008 at 12:19

sunderland said:
can the p35 boards run 8gb ok then

Not sure, down to good sample Mobo and Memory Choice I guess but would assume it needs more NB Voltage then to run it.

Peeps here have ran 8GB longer than the P45 and X48 have been out but if I was asked by you to get you a Mobo that would run 8GB I would have to choose the P45.

gt_junkie · 15 Dec 2008 at 12:47

I run 8gb on an x38 with no issues.

Have only changed cpu (e8500 @ 4.5ghz) voltage to 1.32v and DDR2 (OCZ PC8000) voltage to 0.05v over recommended.

Runs very stable with a 474mhz FSB.

gt

sunderland · 15 Dec 2008 at 15:59

thanks for the advice might have to get a new board then

marcus_667 · 15 Dec 2008 at 16:02

my dfi p35 runs 8 gig geil black dragon fine

sunderland · 15 Dec 2008 at 16:03

just checked the gigabyte site and it says fixed boot lag with 8gb of memory with f4 bios update,well im on f11 so should be ok,as you cant knock the prices of memory these days

sunderland · 15 Dec 2008 at 16:18

is this ok as never used it
http://www.overclockers.co.uk/showproduct.php?prodid=MY-086-OC&tool=3

Phil2008 · 15 Dec 2008 at 17:06

Ive had my e8400 oc to 3.8 and im using 8gb of mem, see sig for system

sunderland · 15 Dec 2008 at 18:43

thanks phil2008

Stonedofmoo · 15 Dec 2008 at 19:11

sunderland said:
can the p35 boards run 8gb ok then

Yeah, they're designed for 8Gb. I've run 8Gb on P35 boards and not had to adjust any voltages. It's luck of the draw and depends if you're overclocking etc.

HEADRAT · 15 Dec 2008 at 22:44

Phil2008 said:
Ive had my e8400 oc to 3.8 and im using 8gb of mem, see sig for system

What's your memory running at?

Phil2008 · 16 Dec 2008 at 01:42

HEADRAT said:
What's your memory running at?

400, but the memory has been running at 422 when I had the cpu at 2.8, but burntest starting failing afer about 10hrs, I think it was something todo with the memory, so I put it back to 3.6, but I didnt changed any mem volts or timings when it was at 3.8 so maybe thats why.

Also when I upgraded from 4gb to 8gb, I didnt have to change any volts or timings, it just worked what was kind of nice. All I can say is the ABIT IP35 PRO ROCKS.

gt_junkie · 16 Dec 2008 at 08:33

sunderland said:
is this ok as never used it
http://www.overclockers.co.uk/showproduct.php?prodid=MY-086-OC&tool=3

That's nice ram. Got some in my HTPC.

Plus i use their PC8000 in my main rig with no issues. OCZ has always run faultlessly in my Gigabyte mobo's.

gt