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Playstation 03-09-2007 04:47 AM

Dual Channel Memory problem. Help Please!
I am currently runnig P4 HT 3.0GHZ on a Machspeed 865PEDAP motherboard.
The MB has 2 memory slots, DIMM1 and DIMM2. I bought pair of dual channel kit brand new retail 2x512 (Kingston Value Ram). When I plug them both in, computer doesn't boot. But when I plug in DIMM1 only, it works. When I plug in DIMM2 only, it doesn't work. My gut feeling tells me that my DIMM2 slot is messed up but it could be a simple mistake.

I've tried to run dual channel with other matching sticks of memory prior to the dual channel kit i just bought, and it had the same outcome. Can someone help? Thankyou

kingofqueens 03-09-2007 05:06 AM

Yes , faults in the slots is a huge possibility . You should get that checked .

Also there could be problem with one of the RAMs .

craig.laing 03-09-2007 11:05 AM

Responce to Dual Channel Memory problem
Check each ram module separately in each ram slot, see if pc boots.
eg. Test each module in ram slot 1 first. If only one module fails to boot that module is defective. If all modules succed to boot in slot 1 then all modules are ok. Now check the other three slots using just one module in one slot at a time. This should determin which, if any, slot is down. If all slots are ok and all ram modules are ok then you have either a compatability/timing problem or possibly a voltage/PSU problem.
Hope this helps. All the best Craig

PS better to use just two slots for dual channel performance.

Playstation 03-09-2007 02:30 PM

memory sticks are not the problem they work fine when put in 1 at at time

i want to try to flash the bios with update but i don't have a floppy drive. anyone have a clue?

Cobalt 03-09-2007 07:44 PM

Some motherboards support USB devices on boot - consult your motherboard documentation and if it does, you can simply boot using a USB stick loaded with the appropriate flash utility.

Alternatively, you can create Boot CD's, though this is a slightly more time consuming process - same end result, though.

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