I am having a problem with memory timing on my Gigabyte GA-P35-DSL3 using OCZ DDR2-800 1gig x2.
My complete hardware configuration is:
Intel Core 2 Duo E6750 @ 2.66 MHz
Gigabyte GA-P35-DSL3
OCZ Tech DDR2-800 1gig x2
WD Caviar SE SATA 400gb
e-GeForce 7600GT
Samsung 22" SyncMaster LCD
While trying to install the OS (Fedora Core 7 x86_64) I was experiencing crashes, freezes and video weirdness, like random cyrillic chars on the screen.
Memtest86+ showed no errors in 8 passes. Mobo POSTs without problems. Hard disk tests passed, read, write, surface.
Samsung monitor worked flawlessly hooked to my older machine, using the new display card and the old.
I posted my problem on Fedora Forum and found the answer, which was to "clock down" the memory to 667 MHz from 800.
Once I did, Fedora installed, and has run well and stable since, even with the nVidia driver kernel mod.
Now I would like to see if I can bring the memory back up to 800MHz, which I understand is standard for this mobo and memory.
When I set the memory to 800MHz, the freezing and weirdness comes back.
I don't want to damage my new install with more tests, unless I can get good information on what to try.
Has anyone else encountered this?
I have built several machines, but not a Core 2, so that part is new to me.
The computer is quite stable currently, and has been rock solid for two weeks.
I'm not looking to overclock, just get things at the "normal" clock speed, whatever that is.
Is this something that only affects Fedora Core Linux x86_64 users, or is it OS independent?