X58A-UD3R Disappearing RAM Issue (4 of 6 GB detected)

[jockc]

As reported in another thread, after many days of checking for bent pins, faulty memory sticks etc, I was pointed in the direction of BIOS Ver FB16 for my UD3R  and it appears to have fixed the lost memory problem (12GB - 10GB usable).   After 3 days of running FB16 and several reboots, the BIOS and Windows7 continue to see the full 12GB.

I was always of the opinion that the issue was not a hardware fault and this BIOS update appears to support that theory.

[Dark Mantis]

Thanks for posting that update I am sure that there are many members who will benefit from it as it was becoming a substantial problem.

[Hostile_MC]

Hey guys looks like this bios update could be a winner, having trouble installing it though. Says it is incompatible with my version of windows, and that I need either the 32bit or 64bit versions. I'm running Windows 7 64 bit. I had this same issue when trying to rollback my bios. Any suggestions?

[Hostile_MC]

Ahh sorry guys scratch that, just discovered the Qflash utility.

[Dark Mantis]

Yes, just go int the BIOS or press the "END" key as you are booting to go straight to it. 

[Hostile_MC]

Well the new BIOS seems to have solved the issue. It hasn't failed to detect all 6 gig since the update. Had a couple of random crashes since then though. A bit odd.

[Dark Mantis]

That's a good start anyway. Problem one solved. If you keep getting crashes, post again and we will see what we can figure out.

[Hostile_MC]

Forgot to mention this but I rolled back to the previous BIOS after about two weeks of random crashes. Was happening fairly regularly, but after rolling back the crashes have stopped, but now I have the missing RAM issue again.

[Dark Mantis]

This is a common downside to BIOS flashing, you swap one problem for another. Personally I would reflash to the later BIOS version and then try and figure out what was causing the crashes.

[Hostile_MC]

Yeah just reflashed it last night. Turn on the computer today and it randomly crashed/reset itself. On restart it was fine for a few seconds and then Steam crashed and had to close itself for no apparent reason. Explorer crashed randomly just before. No idea how to begin tackling this.

[Dark Mantis]

How have you set up your memory in the BIOS? Was it a one complete kit or two seperate kits?

[Hostile_MC]

One kit, three 2 gig sticks. I couldn't even begin to tell you how I set up the memory in the BIOS as I've not touched it at all. Are you talking about messing around with timings etc or what? Not massively versed in that side of things.

Thanks for all the replies by the way!

[Dark Mantis]

If you have not changed any settings how are you running your memory at 1600Mhz?

Another thing I picked up from your posting in another thread was that you

Tried to determine whether there were bent pins but i couldn't tell with the magifying glass I had.

this isn't goood enough, you have to be sure 100%. I suggest that you take several macro photos in good light from different angles and post them here for us to check.

[Hostile_MC]

Yeah I didn't think I needed to change my settings to run my my memory at 1600Mhz. Just flashed to the new version, and altered the multiplyer or whatever so its at 1600 now. Honestly never knew I had to do that.

As far as the pins go, how should I take a macro photo? Will any kind of camera do or what?

[Dark Mantis]

Any decent digital camera should do as long as it has a macro(close up) setting.