Memory Problem While Overclocking

[mike911gt]

Hi Guys.I have a problem with my memory frequency.I am trying to get my Intel Core 2 Quad Q9400 2,66@3,2GHz to 3,6GHz and for that i need to set my FSB to 450mhz on my Biostar P43B-A7.The problem is when i set my FSB over 400mhz with the FSB: DRAM ration 1:1 (at 667) i get a bsod or cant even boot up at all.The only options i have for the DRAM frequency are AUTO 667mhz and 800mhz ,if I set it to auto the frequency is 800mhz and that gives me a ration of 5:6 so even worse.I'm looking for a way to get the FSB to 450 but that the ram stays under 400(800 effective),or if i can get my G.SKILL 2 GB DDR2-800 ram rated at CL5-5-5-15 1,8V to work on 450(900 effective) without getting my hardware damaged?
Buying new ram is not an option.
HERE is a screenshot of all the options i have for my ram

 

[Unolocogringo]

Download CPU-Z. run it and look at the SPD tab. It will list timings and voltages for your memory at various speeds.
Go into the bios and set your memory to its highest rated voltage.
Looking it up on Newegg I get 1.8-2.0 volts . But you did not state model number so I could be wrong . So check with CPU-Z to be sure.
If those are your only memory options set it to 667. then start overclocking. memory frequency will increase with fsb increases.

 

[mike911gt]

Download CPU-Z. run it and look at the SPD tab. It will list timings and voltages for your memory at various speeds.
Go into the bios and set your memory to its highest rated voltage.
Looking it up on Newegg I get 1.8-2.0 volts . But you did not state model number so I could be wrong . So check with CPU-Z to be sure.
If those are your only memory options set it to 667. then start overclocking. memory frequency will increase with fsb increases.

Ok here's what i get on the SPD tab


It's at 1,8V so my questions is if i increase the ram voltage +0,1V could it damage my ram or would it just blue screen(be unstable)?

 

[Unolocogringo]

Should not be a problem . a lot of DDR2 memory would take up to 2.0 volts . some as high as 2.1v.
A 10% tolerance is acceptable so you could go as high as 1.98v and still be within spec. If it were me I would try +0.1 and give it a try . If a no go try +0.2.
which would be .02v out of spec.

 

[mike911gt]

Should not be a problem . a lot of DDR2 memory would take up to 2.0 volts . some as high as 2.1v.
A 10% tolerance is acceptable so you could go as high as 1.98v and still be within spec. If it were me I would try +0.1 and give it a try . If a no go try +0.2.
which would be .02v out of spec.

Ok mate ima try it but to be sure i don't put too much heat on the system ima set it to 800mhz and the fsb to 370 so in the 5:6 ratio it should be running about 900mhz or 2x450 and i have 3 x 120mm case fans so if it gets some heat i think it will fade away lol thanks a lot for you help you got the best answer cheers just one more question should i increase the timings? so it doesnt have to work fast or is the stock 5.5.5.15 fine?

 

[mike911gt]

Best answer selected by mike911gt.

 

[Unolocogringo]

Sometimes when overclocking memory that high you need to loosen timings. 6-6-6-18 would be the next step down from your 5-5-5-15.
It all depends on the kit you have.
EDIT: Also give the 667 setting a try it will put it at 333(667) to start then when you overclock the fsb you will be a little over 400(800). But make sure you use manual timings as poste in your screen shot. Otherwise it will tighten the timings to 4-4-4-12

 

[mike911gt]

Ok man i just try'd it i increased the voltage +1V and it was stable on 340fsb on the 5:6 ratio so it was running at about 808-809 mhz but when i turn on my pc the hardware monitor shows the memory voltage at 2.08V so i turn the settings back to the default 400mhz and when i turn'd it on it showed 1,9V so as far as i see my ram was already running at a higher voltage then whats it rated for on default but i guess a 3,2 clock from 2,6 is fine i set my ram to 667 so that it gets exactly to 400 mhz when i get to my 3,2.
Next time i buy a motherboard I'm going to make sure it has ram multiplier settings
And i try'd with 350fsb on the 800mhz and windows didn't boot so i didn't want to increase the voltage anymore cause its was already on 2V
Thanks for helping mate
Cheers