6GB of ram only showing 4GB

[theyedi]

New computer is up and running, but it's only showing 4GB in task manager on windows xp 64 bit. However, In cpu-z, it's showing 6GB. Is this just an issue with 64bit?

 

[Red Squirrel]

I think it might be a limitation of Windows XP, though I would expect it to be much higher since it would kind of defeat the purpose of 64 bit if all you gain is 512MB extra...

This is a shot in the dark, but try enabling VT in the bios. I don't think that would do anything though... but no harm in having that turned on anyway if you want to do VMware stuff. (it's often off by default).

 

[n7]

Let me guess, X58 chipset?

Seems this issue just continues to occur there.

Bent pins in the socket not making proper contact with the CPU & defective mobos are a few of the things i've heard can cause this.

 

[zagood]

What motherboard? Probably need to enable memory remapping in bios.

 

[theyedi]

it's an asus p6t deluxe v2

 

[zagood]

google-fu.

"The difference between it and the v2 is the sas controller, thats right there isn't a memory remapping feature in the bios, but i figured it out from another post, had to uncheck the "use max memory" in the boot.ini tab advanced options in the msconfig, then restart and it works fine..."

http://www.tomshardware.com/forum/238302-44-vista-reading-memory

 

[her209]

I think it might be a limitation of Windows XP, though I would expect it to be much higher since it would kind of defeat the purpose of 64 bit if all you gain is 512MB extra...

This is a shot in the dark, but try enabling VT in the bios. I don't think that would do anything though... but no harm in having that turned on anyway if you want to do VMware stuff. (it's often off by default).

Definitely not a problem with XP x64. I have 8GB and it sees all 8GB.

 

[chefazn]

Try going to System Configuration and under advanced options, uncheck the maximum memory option. Restart and see if that helps.

 

[theyedi]

Try going to System Configuration and under advanced options, uncheck the maximum memory option. Restart and see if that helps.

that option is off by default. if i check it, it goes up to 4GB. In bios, it also only recognizes 4GB, so I have no idea. would cpu-z recognize a stick if it were defective?

 

[theyedi]

I'm guessing it's some voltage problem with QPI. I'm at 4ghz now, and it's only detecting 2gb of ram now with 1.2975 v core and 1.4 qpi voltage. not sure what to tweak to get teh ramz back

 

[blade-uk]

Make some memory hole remapping is enabled, or something to that words effect. Just have a look through BIOS and you will see it.

Andy