Not all RAM detecting!?!

KwantomFizex · 08-24-2009, 07:59 PM

Hello, new here...

I am running Win XP Home Edition SP2

My video card is 7950 Nvidia XFX or something

I recently bought 2x2 GB ram sticks.

I previously had 2x1 GB sticks

It used to report in system that I had 2 GB of ram.

So I put in the new sticks, and now system says i only have 2.43 GB of ram

However CPUID CPU-Z reports that i have 4 GB of ram???

I know this version of windows wont use all 4GB, the computer guy said 3.5

Anyway, whats going on??

I read some stuff about PAE

Right under in system where it reports i have 2.43 it says Physical Address Extension?

???

What should my virtual memory be set as?

Thanks for any help

MaverickUK · 08-25-2009, 07:01 AM

After installing new hardware, you should always reset the CMOS, do that and see what the result is.

**Tyree** · 08-25-2009, 07:34 AM

32 Bit XP will "see" up to 3.25 GB.
Rule of thumb for Virtual Memory is 1.5 X the amount of RAM you have installed.
With 4GB of RAM I wouldn't be concernec about it.

pallepr · 08-25-2009, 10:50 AM

Quote:

Originally Posted by KwantomFizex

it says Physical Address Extension?

Microsoft deliberately limited the PAE kernel to only allow 4GB. So it wont help you with this problem.

KwantomFizex · 08-25-2009, 04:17 PM

How do you reset CMOS?

I am on P5B Asus Motherboard.

**simpswr** · 08-25-2009, 04:22 PM

Resetting the BIOS will not help with this problem . . all 32 bit operating systems ( including linux) are limited to 3.25 of memory. subtract 512 MB or so for the video card and you have the 2.45 GB

But to reset the BIOS, unplug from power and open the case . . take out the quarter sixed battery on the mother board and press the power button . . replace the battery and you are good to go. Any time I do that, I replace the battery with a new one

pallepr · 08-25-2009, 04:26 PM

Quote:

Originally Posted by simpswr

all 32 bit operating systems ( including linux) are limited to 3.25 of memory.

That they are not. The only reason that the PAE kernel in xp/vista/win7 won't address more than 4GB is because Microsoft has some concerns. Linux does it with a happy face.

KwantomFizex · 08-25-2009, 04:55 PM

Well i just updated the bios

Is that the same as reseting?

**simpswr** · 08-25-2009, 04:58 PM

nope . . but as I said, that is not your problem

MaverickUK · 08-26-2009, 04:33 AM

Eh, is your graphics on-board?

**Tyree** · 08-26-2009, 09:33 AM

As Team Mate simpswr has said, the CMOS/Bios is not the problem.
The limitation is the Vista 32Bit OS.

keithen16 · 08-26-2009, 09:37 PM

it sounds like you have an integrated video card i don't know much about video cards. oops no its not integrated but the video card is using part of your RAM is what is sounds like some systems you can change the amount of video card memory someway but i dont know how to stop that cause. my video card is integrated and i have 2gb of RAM installed but my PC only reads 1.75gb of ram because of my video card

08-24-2009, 07:59 PM	#1 (permalink)
KwantomFizex Registered User Join Date: Aug 2009 Posts: 3 OS: Win XP Home SP2	Not all RAM detecting!?! Hello, new here... I am running Win XP Home Edition SP2 My video card is 7950 Nvidia XFX or something I recently bought 2x2 GB ram sticks. I previously had 2x1 GB sticks It used to report in system that I had 2 GB of ram. So I put in the new sticks, and now system says i only have 2.43 GB of ram However CPUID CPU-Z reports that i have 4 GB of ram??? I know this version of windows wont use all 4GB, the computer guy said 3.5 Anyway, whats going on?? I read some stuff about PAE Right under in system where it reports i have 2.43 it says Physical Address Extension? ??? What should my virtual memory be set as? Thanks for any help Last edited by KwantomFizex; 08-24-2009 at 08:01 PM.

08-25-2009, 07:01 AM	#2 (permalink)
MaverickUK Tech Hardware Team Join Date: Sep 2005 Location: Cheshire, England. Posts: 881 OS: XP Home My System	Re: Not all RAM detecting!?! After installing new hardware, you should always reset the CMOS, do that and see what the result is. __________________ Currently studying: CompTIA A+ CompTIA N+ Cisco Certified Network Associate

08-25-2009, 07:34 AM	#3 (permalink)
Tyree Mentor Hardware Team Join Date: May 2009 Location: Illinois Posts: 5,566 OS: XP Pro-7RC-Mandriva My System	Re: Not all RAM detecting!?! 32 Bit XP will "see" up to 3.25 GB. Rule of thumb for Virtual Memory is 1.5 X the amount of RAM you have installed. With 4GB of RAM I wouldn't be concernec about it. __________________ Posting your PC specs will help us to help you quicker and more efficiently. Last edited by Tyree; 08-25-2009 at 07:36 AM.

08-25-2009, 04:17 PM	#5 (permalink)
KwantomFizex Registered User Join Date: Aug 2009 Posts: 3 OS: Win XP Home SP2	Re: Not all RAM detecting!?! How do you reset CMOS? I am on P5B Asus Motherboard.

08-25-2009, 04:22 PM	#6 (permalink)
simpswr Moderator Hardware Team Join Date: May 2007 Location: Houston, Texas Posts: 12,228 OS: XP, Vista, Win 7	Re: Not all RAM detecting!?! Resetting the BIOS will not help with this problem . . all 32 bit operating systems ( including linux) are limited to 3.25 of memory. subtract 512 MB or so for the video card and you have the 2.45 GB But to reset the BIOS, unplug from power and open the case . . take out the quarter sixed battery on the mother board and press the power button . . replace the battery and you are good to go. Any time I do that, I replace the battery with a new one __________________ Rich MemTest86 \| BenchTest \| Virus/Trojan/Spyware Help How to post a Screen Shot \| PC running slow?

08-25-2009, 04:55 PM	#8 (permalink)
KwantomFizex Registered User Join Date: Aug 2009 Posts: 3 OS: Win XP Home SP2	Re: Not all RAM detecting!?! Well i just updated the bios Is that the same as reseting?

08-25-2009, 04:58 PM	#9 (permalink)
simpswr Moderator Hardware Team Join Date: May 2007 Location: Houston, Texas Posts: 12,228 OS: XP, Vista, Win 7	Re: Not all RAM detecting!?! nope . . but as I said, that is not your problem __________________ Rich MemTest86 \| BenchTest \| Virus/Trojan/Spyware Help How to post a Screen Shot \| PC running slow?

08-26-2009, 04:33 AM	#10 (permalink)
MaverickUK Tech Hardware Team Join Date: Sep 2005 Location: Cheshire, England. Posts: 881 OS: XP Home My System	Re: Not all RAM detecting!?! Eh, is your graphics on-board? __________________ Currently studying: CompTIA A+ CompTIA N+ Cisco Certified Network Associate

08-26-2009, 09:33 AM	#11 (permalink)
Tyree Mentor Hardware Team Join Date: May 2009 Location: Illinois Posts: 5,566 OS: XP Pro-7RC-Mandriva My System	Re: Not all RAM detecting!?! As Team Mate simpswr has said, the CMOS/Bios is not the problem. The limitation is the Vista 32Bit OS. __________________ Posting your PC specs will help us to help you quicker and more efficiently.

08-26-2009, 09:37 PM	#12 (permalink)
keithen16 Registered User Join Date: Jul 2009 Location: san diego Posts: 89 OS: Windows 7 Ultimate	Re: Not all RAM detecting!?! it sounds like you have an integrated video card i don't know much about video cards. oops no its not integrated but the video card is using part of your RAM is what is sounds like some systems you can change the amount of video card memory someway but i dont know how to stop that cause. my video card is integrated and i have 2gb of RAM installed but my PC only reads 1.75gb of ram because of my video card