OK...just built an i7 system, now what's going on? Only 4GB out of 6GB showing......

Beanie46

Senior member
Feb 16, 2009
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Just finished an i7 build.....some new parts, some old.

New parts:

i7 920
MSI X58M motherboard
6GB (3x2GB) Patriot Viper DDR3-1333 RAM



Old Parts:

4870 1GB video
2 x 1TB WD hard drives



Hooked everything up, fired it up, it lives but only showing 4GB of my 6GB of RAM in BIOS and in Windows (Vista 64.)


So, remove a stick from slot 3, now shows 2GB. Hmmmmm........

Put it back in, remove stick from slot 2, restart it and still shows 2GB. Hmmmmm.......


Put that stick back in and remove stick from slot one, which supposedly will prevent it from even starting, according to the manual anyway--and it fires up and shows 4GB of memory. Weird.

So, pull the stick from slot 2 and put the stick I removed from slot 1 into that slot, fire it back up and it shows, again, 4GB of memory.

OK.....so I remove ALL the memory, and put one stick into slot 1....the "required to be filled before all other slots" slot.

Computer starts for a few seconds, dies, restarts, and loops like that, all while beeping cannot locate RAM fault beep code.

So I switch the RAM around.....put every stick into slot 1....and it faults like it has no RAM.

Put any stick into slot 2 or 3 and it fires up. All sticks work in slots 2 and 3, no matter what's in slot 1.....


Sound like a bad motherboard? All the memory sticks work as long as they're not in the first slot.


And I'm using it right now as I post here....slot one empty, slots 2 and 3 populated, running in dual channel mode.
 

Lunyone

Senior member
Oct 8, 2007
482
0
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Originally posted by: Stumps
Faulty slot 1 would be a pretty good guess...

That is what I see happening here. You could RMA the board or you could try putting the memory into slots 2,4,6 (if that is how they are arranged). This will let you know for sure, plus give you ammunition when returning the mobo.