My brother and I built a comp last year (mostly brother) and put CORSAIR XMS3 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMX6GX3M3A1600C9 in a ASUS M4A785TD-M EVO AM3 AMD 785G HDMI Micro ATX AMD Motherboard. After a few months the memory started misbehaving and I babied it for way too long until I stupidly put it to sleep and ugliness ensued.
used MemTest 86 and found that all three sticks of my RAM were bad. Two were completely crapped, one only had two errors. Somehow only using the one mildly bad stick alone let me boot into safe mode.
I ordered 2 x G.Skill Ripjaws - Memory - 8 GB : 2 x 4 GB - DIMM 240-pin - DDR3 - 1600 MHz / PC3-12800 - CL9 - 1.5 V - unbuffered - non-ECC and they came today. Followed all the instructions - installed four into the four slots and no start up. Mobo green light comes on, fans activate, but nothing else. No beep from mobo - with or without ram.
Tried only using two in the first two slots - nothing. Tried only using one in the slot where the wounded ram was functioning. Nada as well. Put back in the one corsair ram stick and the computer comes back to life and will marginally function in safe mode.
What am I doing wrong? Did I buy the wrong ram? I have successfully installed ram in the past but I am fully accepting of the fact that I am doing and/or have done something dumb.
I didn't change any of the settings in BIOS. The only settings I have changed in BIOS were the boot order so I could run MemTest 86. My computer would get a nice BSOD a couple of times a week and warnings about bad memory frequently before the ram was run through MemTest 86.
Toneekay - How did you go about updating your bios? Experience with updating Bios has not always been good.
My motherboard's manufacturer website had a download for new bios and patches; most of them also had descriptions under it so I knew what I was downloading/updating. After downloading, I used the motherboard live update software toinstall the new bios patch.
After reading about your BSODs/warnings, it could also sound like Geek is correct about your RAM settings being off. The best way to fix that is to figure out the stock settings (on package or even online) and set those into the bios.
I would try and do both as some boards dont support up to 8gb without a bios update/patch.
The BIOS update did it! Thank you so much. My computer will still only boot to safe mode but I think that is another issue to do with Windows 7 and ATI Catalyst nightmares. At least the ram is working.