Tom's Hardware > Forum > Motherboards & Memory > Gigabyte > GA-EP45-UD3R and 2x2GB G.Skill PC-8500 DDR2-1066 dual-channel problem

GA-EP45-UD3R and 2x2GB G.Skill PC-8500 DDR2-1066 dual-channel problem

Forum Motherboards & Memory : Gigabyte - GA-EP45-UD3R and 2x2GB G.Skill PC-8500 DDR2-1066 dual-channel problem

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solarweasel   01-25-2009 at 12:37:28 AM

Hey folks - I've done some searching and reading and found people with similar issues as me but no solutions yet.

I'm running an Intel E8400 Core2 on my new Gigabyte GA-EP45-UD3R motherboard with 2 sticks of 2GB G.Skill F2-8500CL5D-4GBPK memory.

The system will run stable with the memory clocked to its default 1066Mhz and installed in single-channel. It will also run stable clocked to 800Mhz and installed dual-channel. It will NOT however run stably locked to 1066Mhz and installed dual-channel. With the system doesn't get past the beep (no access to BIOS or anything until I remove a stick).

I have tried manually increasing the DRAM voltage to 2.1V to no avail.

Anyone have any other suggestions? Is it likely memory or mobo related?

I can provide more info if needed... Thanks so much; it's driving me crazy.

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herve   01-26-2009 at 01:29:48 PM
- 0 +

Did you try to increase the MCH Core Voltage ?

It seems to be recommended for memory modules of more than 1 GB.

MCH/ICH
MCH Core…………….....1.100V...........: 1.200V
MCH Reference….…….0.760V...........: Auto
MCH/DRAM Ref.…......0.900V...........: Auto
ICH I/O……………….....1.500V............: Auto

DRAM
DRAM Voltage ……....1.800V............: 2.100V

Hope it helps, Hervé

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