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Gigabyte GA-MA785GM-US2H

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September 4, 2010 5:36:05 PM

I have just built new system with GA-MA785GM-US2H motherboard. Systems posts with one memory module installed in DDR-1. With two memory modules installed in DDR-1 and DDR-2, post fails with continuous long beeps. Changed the memory voltage from 1.8 to 1.9 and 2.0; same result.

Memory modules are both good, as either one works by itself in DDR-1. They cane from another system (FoxConn), where they were configured and working at 2x2gb dual channel. Memory is Corsair CM2X2048-6400C5, 1.80V ver 4.2.

Read a similar thread here where the Gigabyte was RMAed for a different brand motherboard. Is there any way to get this 4GB running dual channel on this motherboard?

Thank you.

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a c 715 V Motherboard
a c 346 } Memory
September 6, 2010 3:08:29 PM

IF you are trying to OC your memory above 800MHz - "Due to AMD AM3/ AM2+ CPU limitation, DDR2 1066 or above speed is only supported by 1 dimm per channel."

Your MOBO {GA-MA785GMxxx or GA-MA785GPMxxx} is not listed at Corsair's website, nor is it white listed with GA - http://download.gigabyte.us/FileList/Memory/mb_memory_g...

My assumption, is that possibly the DDR2 and not correct for your MOBO. Also, for now, set BIOS only to Load Optimized with no other changes until this problem is resolved.

If DDR2_1 + DDR2_2 fail then you can also try DDR2_3 + DDR2_4.

Good Luck!
!