Should my memory be running faster

SupraWez · 25 Nov 2007 at 21:52

Hey All,

Here are my screenshots from cpu-z.

I have 4GB Corsair Dom PC2-8500 C5 1066 memory with an Asus P5K and Intel E6550 CPU. Shouldnt my memory be quicker than whats being displayed.

fobose · 25 Nov 2007 at 22:01

Yup it should. Got a E6750 with PC6400 (400MHz) and its running at 400MHz. Maybe you need to change the dividers on the motherboard? Although, would have though it would be auto.

SupraWez · 25 Nov 2007 at 22:15

What do you mean change the dividers?

SupraWez · 25 Nov 2007 at 22:31

Here is another screenshot from cpu-z, should I be able to change the FSB

RAM ratio?

fobose · 25 Nov 2007 at 22:40

Yup you should be able to, its called something different in the bios though. Cant be much help as I haven't overclocked a c2d yet. Does your motherboard support 1066 ram? If not thats more than likely why it doesn't auto detect to that speed. Oops, just noticed you have a P5K too and that does support it.

SupraWez · 25 Nov 2007 at 23:18

I have looked in my BIOS and I have an FSB strap to northbridge option set to AUTO.

Should I configure this manually, options are 200, 266 and 333.

Cob · 26 Nov 2007 at 12:19

DRAM Frequency is the memory divider option in the P5K.

SupraWez · 26 Nov 2007 at 18:05

My dram freq in the bios is approx 950MHz but cpu-z is reporting 475Mhz.

thefishdude · 26 Nov 2007 at 18:07

475 is correct you have to double that number for ddr2 ram. soo its actuallt at 950 like your bios sais

steve258 · 26 Nov 2007 at 19:21

P35 mobos can only offer divider options which leave ram speed synced with the fsb so it's hard to make it run at exactly PC2 8500 (1066Mhz).

SupraWez · 26 Nov 2007 at 20:27

Should I leave my northbridge voltage set to auto or set it manually?

steve258 · 26 Nov 2007 at 20:34

Should set it manually if you want high clocks, don't have that mobo though so not sure about voltage options for P35

SupraWez · 26 Nov 2007 at 21:04

steve258 said:
Should set it manually if you want high clocks, don't have that mobo though so not sure about voltage options for P35

I have just turned my FSB back upto 400 and my dram is at 1000MHz.

My northbridge voltage is on auto and has 1.25, 1.40, 1.55 and 1.70 as options available.

I also have a northbridge voltage reference option which is set on auto but has 0.67x and 0.61x as options.

SupraWez · 27 Nov 2007 at 12:14

I set my NB voltage to 1.4v and it ran all night at FSB 401 without crashing.

SupraWez · 27 Nov 2007 at 19:52

Its still going, looks like the NB voltage might have been the issue.