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Tom's Hardware > Forum > Motherboards & Memory > Abit > 3gb ram only 1 gb is usable

3gb ram only 1 gb is usable

Forum Motherboards & Memory : Abit 3gb ram only 1 gb is usable

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aakashalex   10-14-2011 at 12:26:00 AM

Hello,
my system is showing 3gb of ram but only 1gb is usable. Can i use all 3gb of ram. I m using windows 7, core2 duo proc. 2.25ghz, and gt 520 graphic card. Thanks for ur time and help.

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jaquith   10-14-2011 at 01:00:29 AM

Welcome to Tom's Forum! :)

Define 'useable'?

Q - What MOBO?
Q - What RAM?
Q - What DIMM slots is the RAM installed in? e.g. CPU: | 1GB | 512MB | 1GB | 512MB |

Look at the Resource Monitor and provide the following:
1. Hardware Reserved?
2. Installed?
3. Total?
http://i1013.photobucket.com/albums/af254/Jaquith/RM_7PRO6GB.gif

Reply to jaquith
aakashalex   10-14-2011 at 10:03:41 PM

it shows
hardware reserved- 2049mb
in use- 578mb
modified- 5mb
standby- 213mb
free- 227mb.
i have one 2gb ram and another 1gb ram.

Reply to aakashalex
jaquith   10-14-2011 at 10:25:42 PM

Okay so far I know the 2GB is turned-off by the BIOS.

What about the rest?

Q - What MOBO?
Q - What RAM?
Q - What DIMM slots is the RAM installed in? e.g. CPU: | 2GB | blank | 1GB | blank | ??
Q - What CPU?

CPU-z will identify MOBO {Mainboard tab}, RAM {SPD tab}, CPU {CPU tab} and LOOK at the MOBO for the DIMM slots.
CPUZ -> http://www.cpuid.com/softwares/cpu-z.html ; free and good App.

Try booting with ONLY the 2GB stick where the 1GB currently is i.e. Swap them.

Some older MOBO's require the SAME sizes per Channel. Also, if the memory Frequency, CAS Timings and/or Voltages are different this too will cause the BIOS to turn-off the DIMM slot(s) {RAM}.


Message edited by jaquith on 10-14-2011 at 10:26:29 PM
Reply to jaquith
aakashalex   10-15-2011 at 11:29:31 PM

i swap them and now i got the full 3gb usable ram. So so so so many thanks to u sir.......

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