Memory compatibility problem

[devils-haven]

have an asus p5ql-e motherboard with the latest bios

have a 2x2 ocz pc800 ddr2 ram runs at 2.1v and i have kensington valuram 1x2 677 at 1.8v as far as i can tell

when i use the ram moduals indevidialy, i ean kensington only, or ocz only they work fine, but when i put both of them in at the same time they don't work

just to mention i have a q6600 running at stock speed 2.4ghz

can any one tell me is this a limit of the memory? or somthing weird is going on?

 

[GhislainG]

Manually set the memory to 667 Mhz, the voltage to 1.8V-1.9V and the timings to 5-5-5-15 or whatever the Kensingtom RAM requires at 667 MHz. If that doesn't work, then the modules are too different to work together.

 

[devils-haven]

no matter what i do they don't work, i changed all settings to manual and tried each set with those settings they worked, but once i put the sets together the system won't even boot, won't even go to bios, to change settigns again i have to remove a set so i can go to bios(scren won't come on ither)

 

[GhislainG]

If you have OCZ kit OCZ2P8004GK, then it's qualified for 2 modules only (see the QVL for more info) at http://tw.asus.com/886/download/products/2272/2272_10.pdf. 4 modules of Kingston ValueRam (if they are identical) should work.

Memory modules like the G.Skill PI Black or similar modules that require 1.8V at 800 Mhz and 4-4-4-12 timings usually are less problematic when using 4 modules.

 

[devils-haven]

ahh thx, thats exactly the memory i have, i guess its a bust (good that 4 gigs is more then enought this day's)