Strange Motherboard Module Slots Issue

[Pixellated]

Hi there,

I've come across a strange issue recently when trying again to get all 4 of my modules (4x1GB, http://www.overclockers.co.uk/showproduct.php?prodid=MY-072-OC&groupid=701&catid=8&subcat=813 ) working.

I can't get my computer to boot (about 2 seconds into the BIOS, will freeze) when all 4 modules are in all 4 slots. All the modules are fine (all passed memtest individually and with their respective dual channel module), and all the slots are fine: I've tried every configuration (I'm aware they're dual channel kits), and it's always fine no matter what I run where, so long as all 4 slots aren't occupied. Googling hasn't come up with anything like this problem: my motherboard is a Gigabyte GA-EP45-DSR (socket LGA775, Intel P45 chipset), supports up to 8GB @ 1066Mhz indefinitely), so I came here for advice.

I don't have any spare RAM to run tests with other modules, can anyone suggest what the problem might be/any fixes?

 

[PhillyDee]

I had a similar problem with GeIL ram that went unresolved. Exact same symptoms! Except mine would not overclock stably with it in.

Are you overclocking?
Even if you are not, add an extra 0.1v to the ram voltage, an you can even try and slacken the timings a bit.

 

[setter]

Also try upping the nb voltage a few notches, as when all ram slots are occupied this places a bit more strain on the nb.

 

[Pixellated]

Ah, sorry, should have said: I tried upping the voltage (test ranges from 1.9v (under which the RAM can't work anyway) to around 2.6v (not willing to go higher). 3GB is fine until I upgrade next year anyway. Might try editing the timings though, thanks for the suggestions.