GA-P35-DS4 R2 - 4GB gives only 3GB

jontom07

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Feb 28, 2007
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Installed a GA-P35-DS4 rev. 2.0 today as a replacement for my GA-P965-DS4.

I have a Q6600 and 4 x 1GB GEIL PC2-6400 4-4-4-12 memory sticks.

The P965 mobo gives me 4GB RAM, the P35 mobo only gives me 3GB (Vista 64 shows 3070MB)

I upgraded to the latest bios from Rev f7 to rev f11 but has not made any difference.

The RAM total is same regardless of the board being clocked or over clocked.

Any thoughts? I searched forums but didn't get far, although it seems some people have been having issues in general with 4 x 1GB as opposed to 2 x 2GB.

On a second note:

I run my OC at 3.3ghz currently on 9 x 367, would it be best to go for 8 x 412 ?

Thanks in advance
 
I second that - Are you sure you have Vista 64. If you bought the Ultimate CD, there are two discs: one for 32 and the other for 64. Not calling anyone out, or anything. Just that it's happened before that someone installed the 32 and thought they had 64.


The other thing is to make sure memory swapping is enabled in the Bios. Often it'll have different names, and I don't have that particular mobo. So I can't be more specific.
 

FHDelux

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Jan 25, 2008
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Take a look in the bios and see if theres anything in there named Memory remap. Somew of the new ASUS boards i have seen around have this feature. If its enabled the Motherboard will only say it has 3.2GB installed instead of 4GB (at post time), and x64 wont pick up the rest of the memory either. If you disable this setting, the motherboard will recognize all 4GB at post and x64 windows should find it as well.
 


Hmmm, you must ENABLE memory remapping not disable it.
 

jontom07

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Feb 28, 2007
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Thanks for the input. Reseating simms didn't make any difference but I took out the simms again and swapped them over on the channels. Hey presto suddenly bios polls me 4GB as oppose dto some strange figure of 317364526 or something. Methinks one of the simms is slightly suspect but will replace the PC6400 with PC8000 or PC8500 next week.