Recognises 2GB but not 4GB

Nossmayo

Nossmayo

Nossmayo

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Joined
1 Nov 2006
Posts
2,605
RAM: OCZ 4GB (2x2GB) PC2-6400C5 Dual Channel Vista Gold Series DDR2
MOTHERBOARD: Abit IP35 Pro (Socket 775) PCI-Express DDR2


Recently built a PC, all went well except it will only recognize one of the mem chips. Initially it wouldn't recognize either but after a bit of swapping around i got one to work. With one of them working I was hoping I'd able to simply up the voltage in the bios and everything would be fine. Ive upped it to 2.1v and still nothing. Is there anything else I can try to get this working?

Thanks.
 
AssaTM said:
You're on a 64bit OS right?, but even if you're not it should still recognise around 3gig's of RAM
Click to expand...

Im not entirely sure if this is right or, but if its 2x2GB stick, it might only recognize 1 stick, I cant imagine an OS detecting half a stick of RAM. I may be wrong though.
 
Thanks for responses...To clarify, I have both XP and Vista 64 installed, however it doesnt allow me to post with both mem chips in. (I havent updated the BIOS).
 
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Go to Abit website, search for your motherboards latest BIOS version, and run it with the flashing application that came with the driver disk.
 
Im fairly reluctant as the system itself is more than stable. Is it worth updating the bios? (just for the extra ram?). Will it majorly affect things if it goes wrong...?
 
Stick 2 sticks in boot into bios

set memory @ 2.2v
Timeings : 5.5.5.15
Up your Northbridge voltages 2 notches aswell as your southbridge.

save settings/ shutdown system and put one stick in at a time once in the bios save settings and shutdown again then place the last stick in and start system up,

it should work...
 
ViRuS2k said:
Stick 2 sticks in boot into bios

set memory @ 2.2v
Timeings : 5.5.5.15
Up your Northbridge voltages 2 notches aswell as your southbridge.

save settings/ shutdown system and put one stick in at a time once in the bios save settings and shutdown again then place the last stick in and start system up,

it should work...
Click to expand...

Sounds promising...i will give it a go in a bit and post back...thanks for reply.
 
Sorry just to clarify, with 2 sticks in, it wont allow me to get to bios. Can i change to your recommended settings with just one stick in?
 
Nossmayo said:
Sorry just to clarify, with 2 sticks in, it wont allow me to get to bios. Can i change to your recommended settings with just one stick in?
Click to expand...

Boot into bios then with 1 stick and change to the settings i said then save and shutdown then stick 1 stick in at a time then go into bios save settings then shut down then boot again with another stick in rince and repeat untill they are all in :)

good luck.
 
OK, bear with me on this, not done before.....with the mem timings which do i change....tcl, trcd, trp, tras, trfc, twr, twtr, trrd,trtp?

EDIT: Ive found out which ones are which now.
 
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I must have a faulty mem stick. If i take out the one that works and replace it with the other one in the same slot it doesnt start up. Put the other one back in and it starts up fine. I guess i'll have to purchase some other mem (any recommendations?) and in the meantime stick with 2GB, which to be fair isnt causing any hassle....thanks for your input everyone.
 
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