GA-X58 UD5 RAM problems

[calis]

i have 6gb installed and working but then when i plug in my SSD i get 6gb of ram but only 4gb usable...

any idea on whats wrong ?

[bobbavet]

YES me too.

Here are some observations:

System: x58-UD5, i7 920 D0, 6gb gskill ddr3

Ive just done some testing in the shed.

I tested each mem stick in mem slot 1. All boot up fine. 2gb seen in bios and in Win

Used slots 1,3,5. I do this and bios only reads 4gb, Win sees 6gb/4usable

Used 2 stick in 1,3 slots. Bios sees 2gb win sees 4gb/2usable

I know it is not mentioned in the manual, but I thought what the heck and tried 2 sticks in slots 1,5 bios sees 4gb win sees 4gb/4gb usable.

So it would appear the problem may be in the slot 3 whether in dual or tri-mode. It is weird how Win can still see it although the bios has no idea.

I might try the original bios. I don't know what it was like as I Qflashed the new bios as soon as I got it. It could be that the latest bios is a mod for hex-core processors who's pin configurations are possibly different to the 4cores.

Im interested to know if even with the 3 slots full that it is operating in tri mode despite slot 3 not registering with the bios.

Edit: people are say re-seat the cpu as it is the mem controllers but how does that explain the bios "NOT" seeing the ram in slot3?

[bobbavet]

i have 6gb installed and working but then when i plug in my SSD i get 6gb of ram but only 4gb usable...

any idea on whats wrong ?

Mmm thats interesting, is this happening only on SSD systems That is what I am building and have probs

[fromgary]

Hi Again,

Ok i,ve decided to replace my GA-X58-UD5 with an Asus Rampage iii Extreme, i,m cosidering sending my UD-5 back to have it tested but i need my PC for Rendering work projects so i cant wait for postage ,testing ,repair ,& postage back.
  i han't read about anyone else having SSD related problems but post any fixes you find .

[alicanyildiz]

No. I use HDD. I buy SSD. but waiting for cargo. // I have the same problem. only the 1st and 3rd slots are working.

i have 6gb installed and working but then when i plug in my SSD i get 6gb of ram but only 4gb usable...

any idea on whats wrong ?

Mmm thats interesting, is this happening only on SSD systems That is what I am building and have probs