CPU/Mobo System acting strange after installing/removing GTX 580

[Kira]

Current specs:-

i7 920 @ stock

X58A-UD5 rev1.0 (F7 BIOS) BIOS was updated from F6 to F7 last year Nov 2011.

EVGA 9600GT 1GB GDDR3 @ 2-way SLI

TX650W (old one, bought 4yrs ago)

Lancool PC-K62

M2700HD (using DVI cable)

6GB DDR3 GSkill 1600MHz 9-9-9-24 @ 1.6V (slots used are 1,3,5 - triple channel)

Noctua NH-D14

Win 7 Ultimate x64

Changes done:-

All my hardware are 4yrs old except GTX 580 which is only 10 months old.

Removed both 9600GT & installed EVGA GTX 580.

Problem:-

Bios detects all 3 RAM modules. But usable is only 4GB. The same is shown via System Info when you're in Windows > Right-click My Computer > Properties

Boot process goes till - "Verifying DMI pool data" > "Detecting DRAM size..."

and then restarts automatically 3 times, sometimes 4. On the 4th or 5th run, it finally goes till windows & this time you only get "Verifying DMI pool data". The "Detecting DRAM size..." line does not appear.

I googled this & came up with these - results

Haven't had time to clean & reseat the RAM sticks & mobo. Will do it during the weekend. Helluva time in office this week.

Removed GTX 580 & re-installed 9600GT in SLI. The problem persisted which was totally unexpected. Had a true WTF moment last night.

Any quick suggestions?

 

[rakesh_ic]

if i am not wrong, the problem is with one (or even both) of your RAM modules. try cleaning them and use one at a time to check the faulty RAM.

 

[G80_gts]

quick pointers?

try what has been suggested by rakesh. See that all rams are seated propely.

Also if ur comfy, try updating the mobo Bios.

I had faced a similar situation on my htpc board . One fine day she wnt recognise one fo the ram slots, and it was random.sometime slot 1 was getting undtected and then sometimes slot.Went to maufacturers site and saw a list of bios addressing "system unstability". Updated and whoosh! Been runing like charm for the past 3 months

 

[Arun.P]

remove the 9600 gt and use it 580 gtx single card and test if working and reset the bios and u need to run memory test the ram if any error