I have a intel i7 920, which is overclocked to 3.5GHz (through following very carefully an online overclocking guide) on a Asus PT6 . I have 8gb of corsair DDR3 XMS3 1600 ram (CMX4GX3M1A1600C9). I've had the computer for about 18 months and its been absolutely fine - consistently showing the right speed and RAM amount. The PT6 has 6 sockets and as per the user guide I had 4gb memory each in A1 and B1.
Just the other day however I suddenly noticed on boot up that it was showing 4gb RAM instead of 8gb. Testing to see if one of the bits of RAM was bust, I removed one and the computer didn't boot. Switched with the other one and it did boot. I figured bad RAM and ordered another one of the same. In the meantime I put both back in (not entirely sure why) and carried on. Happened however to run Sandra and in that both sticks of memory were showing, but both showing 2gb?! Took the stick out which previously hadn't worked, and now the remaining stick still only showing 2gb. The new RAM arrived - I installed this instead of the stick which appeared not to work but now one stick is showing as 2gb and 1 as 4gb. I tried then putting all three sticks in, using the configuration shown in the mb user guide. This then now showed as two at 2gb and 1 at 4gb. Whereever I move the new stick to it shows as 4gb and the others at 2gb.
What I find also confusing, when only two sticks (the 'working' old one and the new one) are in Sandra says I'm using Bank 0 and Bank 3, and shows Bank 0 as 2gb and Bank 3 as 4gb. With three sticks in, it says I'm using Bank 0, Bank 2 and Bank 4, even though for the first two I haven't moved them. Bank 0 shows as 2gb, Bank 2 as 4gb and Bank 4 as 2gb. All should actually be 4gb.
Apologies for the really long post, but I'm totally confused. I don't know now whether its the RAM, the slot or something to do with the motherboard or chipset. Does this mean BOTH my old sticks of RAM are broken? I would really welcome any help on what the problem might be or what to check next before I throw the computer out the window
Ash
Just the other day however I suddenly noticed on boot up that it was showing 4gb RAM instead of 8gb. Testing to see if one of the bits of RAM was bust, I removed one and the computer didn't boot. Switched with the other one and it did boot. I figured bad RAM and ordered another one of the same. In the meantime I put both back in (not entirely sure why) and carried on. Happened however to run Sandra and in that both sticks of memory were showing, but both showing 2gb?! Took the stick out which previously hadn't worked, and now the remaining stick still only showing 2gb. The new RAM arrived - I installed this instead of the stick which appeared not to work but now one stick is showing as 2gb and 1 as 4gb. I tried then putting all three sticks in, using the configuration shown in the mb user guide. This then now showed as two at 2gb and 1 at 4gb. Whereever I move the new stick to it shows as 4gb and the others at 2gb.
What I find also confusing, when only two sticks (the 'working' old one and the new one) are in Sandra says I'm using Bank 0 and Bank 3, and shows Bank 0 as 2gb and Bank 3 as 4gb. With three sticks in, it says I'm using Bank 0, Bank 2 and Bank 4, even though for the first two I haven't moved them. Bank 0 shows as 2gb, Bank 2 as 4gb and Bank 4 as 2gb. All should actually be 4gb.
Apologies for the really long post, but I'm totally confused. I don't know now whether its the RAM, the slot or something to do with the motherboard or chipset. Does this mean BOTH my old sticks of RAM are broken? I would really welcome any help on what the problem might be or what to check next before I throw the computer out the window
Ash
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