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OK, I got through 5 passes today... and already had results, so I am posting early...

Well, I'm back! I sure wish I wasn't... but the memory change does not seem to have actually solved the problem. Or maybe it's a different problem? BSODs in the last week or so have been frequent. Even as much as a couple times in an hour. Apparently, the memory was not the root issue. No...

I'm marking this as solved as my system seems stable... though I still am not able to understand if my memory is configured/reporting correctly, nor what to do about it next. Thanks for your kind help.

I didn't find anything to help in that link, but I did find something at the CPU-Z web site. Problem is, I don't understand it, nor do I understand the implications of the "misreporting". Does any of this make sense to you? what are the implications? It says that it could mean that the "SPD...

OK, I went into Ai Tweeker, and DRAM Frequency is listed as 2400... So why is CPU-Z reporting 667 as "Max Bandwidth"? And I still don't know what Max Bandwidth is specifically referring to. Is it referring to the memory sticks self reporting bandwidth? Is it referring to actual measured...

I take it you mean multiply by two... but this is still wrong... that’s approx. 1200. My memory runs at 2400... so that’s doubling *again*, 4X the shown speed. 644 makes no sense for 2400 rated memory if I follow what you are saying. it should be indicating twice as fast, yes?

What is the source of the limitation? Why isn't it the rated speed of the memory??? Many thanks!

OK, I've gone back into BIOS and manually set the memory profile/voltage/speed to the ratings on the kit. One thing about CPU-Z that I don't understand is the "Max Bandwidth" on the SPD tab. It says PC3-10700 (667 Mhz)... WHAT is this saying to me? That the memory stick is reporting to CPU-Z...

OK, your suggestion worked. System is back up. I guess we need to backtrack a bit now... run memtest again? Again, thanks for all your help.

Ok. How do I do that? thank you!

I set nothing because I don’t know jack about any BIOS stuff. I did struggle through one issue where it failed for CPU fan, but as I’m liquid, I found the setting to ignore CPU fan speed... other than that, nothing changed. I guess we can assume all of the settings are generic/factory now?

I installed the latest. It wouldn’t occur to me to do incremental upgrades.

Ok, BIOS update attempted. windows now does not boot. Goes to BSOD directly... something about WHEA uncorrectable error, then a message about a “automatic repair”which also failed... it just loops BSOD / reboot forever. Please help :(

No disrespect intended... but why would I be doing this? Do you see something specific? Many thanks!

Here is the Log:

OK, so I have installed a new kit. CPU-Z verifies that they match. The good news is that my system runs much faster. It's quite zippy now. Responsive. The Bad News is that I just got another random BSOD... while the system was sitting unattended.

OK, I'm starting to understand. Where did CPU-Z get the information it gets? Does it read some identifying data directly from the sticks, or does it perform a test on them and divine the performance specs based on the test? I've ordered a Corsair kit. Naturally, I will run CPU-Z on the kit...

Wait... are you saying that Digital Storm sold me a PC with memory sticks that aren't identical? When you say "get a kit", what does that mean? Many thanks!

Thanks for the assist! Here are the screenshots from CPU-Z

Interesting memtest results. Errors when both memory modules in place. No errors when only mem module 1 is in place... in either socket. No errors when only mem module 2 is in place... in either socket. Both mem modules in place: