|Well, this is interesting. First my attempts to run memtest86+ on all modules installed sequentially, then I'll respond to your post.|
I just tried to run memtest86+ with my Samsung in 1&2, and G.Skill in 3&4. Memtest went haywire! It started, recognized there was 4GB of RAM to test, and then gave me a multicolored display of garbled characters randomly scattered all over the screen, and locked up. I had to turn it off with the power button, take out 2GB, and then it worked fine. Loads into Win7 fine, also. Now running on the Samsung modules in slots 1&2, with cpu-z saying I'm running in dual channel mode.
OK, now on to your response:
If, as you say, my mobo does not support dual channel mode, then I am even more confused.
A) none of the memory slots are colored. All four are black.
B) This link about dual channel explains that mobos for AMD chips don't skip a socket (1&3, etc.).
"You can find motherboards targeted to AMD processors using the same method described before or enabling dual-channel by installing memory modules sequentially, not skipping one socket."
C) This place says the mobo supports dual channel DDR2.
D) CPU-Z says my memory is running in dual channel mode when I have my memory in slots 1&2 or 3&4. When I have the modules in 1&3 or 2&4, cpu-z says my memory is running in single channel. If my mobo doesn't support dual channel, then cpu-z should say that I am running in single channel mode no matter where the DIMMs are, correct?
E) If all I have available is single channel mode, then it should not matter what memory modules I stick in what slot, regardless of brand, correct? If so, then this brings me right back to my original problem:
why won't it work when I have all four modules installed in what would be considered a dual channel mode for AMD chips? Why do they work when I skip a slot, but not when I put them in sequentially, if I supposedly can only run in single channel mode? Why doesn't it just run in single channel mode when I have them installed sequentially instead of killing my computer? Why does it randomly freeze up even when I do have all 4 modules installed in alternating fashion?
I'm beginning to wonder if I'm seeing the beginning of this computer's death throes. I hope not, as I don't have enough time to learn what I need to build one (not to mention the funds aren't there right now). It needs to survive until next tax season.