ddr 2 , first memory slot doesnt seem to work,DIMM

  wappa 19:43 19 Nov 2009

my memory slots on my mainboard, i have 4, the first one doesnt seem to register, whenever i put my memory in, correctly seated wont boot up, use 2 3 and 4 it seems ok, any help appriciated as i have 2,2gb corsair sticks but only states that i have only 3 gb of memory when using other slots, am running windows 7 home

  tullie 20:03 19 Nov 2009

Im sure someone will know the answer but maybe Windows 7 will only show less than 4gb on a 32bit system.

  grey george 20:13 19 Nov 2009

There is more info click here
It seems 32 bit os can't use ram above 3gig. Why slot 1 is not functional is hard to say, have you researched the MB on the web? it may be this slot is for a differnt type of memeory.

  norman47 20:25 19 Nov 2009


Full spec of ram

  wappa 20:27 19 Nov 2009

Biostar TA770E 2x2gb corsair memory is my spec

  norman47 20:35 19 Nov 2009

code numbers on the corsair memory?

  norman47 20:55 19 Nov 2009

you use either slots 1 and 3 from the cpu or slots 2 and 4. 2 x 2Gb of corsair should be fine if it's ddr2 800mhz or slower. If you use faster ram you must use a AM2+ or AM3 cpu to get the best results.

If the bios registers 4Gb of memory and windows registers just 3Gb. That is normal.

If the bios just sees 3Gb and the above are correct, try clearing the cmos via the battery and rescanning the bios on boot up. Or use the bios to clear NVram and reboot.

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