Hello all. I just installed a new mobo after a bad bios flash. The new mobo is a Gigabyte GA-EG41MF-US2H. All is well except i have 3gb of ram installed and only 2gb useable. CPU-Z shows the full 3gb installed. I have run Resmon and this shows that 1gb is being reserved for hardware. Why ? Im using an Nvidia geforce 8600gt plugged in on the pci-e x16 slot and it has 512mb of ram on the card. As i understand it im not really using anything integrated and dont understand why hardware should be doing this. I have considered bios but there are no updates at the moment. Any help would be appreciated.
Well due to mobo chipset limitation you can install single, two or four memory modules. If you install three, only two work.
In my case i have 4 slots in use as follows: dimm 1 = 1gb dimm 2 = 512mb dimm 3 = 1gb dimm 4 = 512mb. In win7 system properties it states "3gb ram installed 2gb useable". For some reason my mobo is hijacking 1gb of ram and i dont see why as i have disabled on board graphics, or any other acceleration for that matter.
Wrong Memory Configurations Table, you need put your memory modules as follows: Channel 0: DDR2_1, DDR2_2 = 2 x 1gb Channel 1: DDR2_3, DDR2_4 = 2 x 512mb
RAM Issue You can try entering this command in cmd: BCDEdit /set PAE forceenable You can lso press Ctrl+Shift+Esc & open TaskManager, goto performance. It should show your total RAM there. If it shows 3GB there, then 3GB is definitly available. Try enabling PAE in your BIOS (Physical Address Extension). If it still doesn't work, well, get a hammer.
Not a viable solution for me in afraid as bios only sees 2gb of installed ram. Seems its a chipset limitation. To occupy 4 banks i must use 4 single sided ram modules. I foot think many people have had success with the PAE command anyway. Thanks anyway.