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Windows 7: Only 2,75GB RAM Usable, regardless of installed amount.

20 Oct 2015   #11
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

You could try that. It might work. I have never tried. What method are you going to use to install Windows 7 with the proper COA key?
What operating system did you computer come with?

When I build a new system I just buy a new Windows 7 OEM/Builders and install it. You must be very careful where you buy Windows 7. Their are a lot of counterfeits being sold.


My System SpecsSystem Spec
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20 Oct 2015   #12
Slyve

Win7 Ultimate x64
 
 

I'll just try and change the Hardware back tomorrow. The Problem never occured on the old Board. Also, the new one isn't all that great anyway. Running at 85C Idle.

In any case, that should solve the Problem. Thanks for your Help!
My System SpecsSystem Spec
20 Oct 2015   #13
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

You did not answer my question.
What operating system did your computer come with?
My System SpecsSystem Spec
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20 Oct 2015   #14
Slyve

Win7 Ultimate x64
 
 

Sorry, didn't read it all. I actually don't know. I only started to work here recently, not even 2 months ago.

The one i am using right now was already set up as a working computer.

The Dell PC i took the board from was basically unused for testing purposes, there was no HDD in there, but it originally came with XP (The Sticker was still on the Case)

When i change the hardware back as it was before, i will use paragon adaptive restore again, so the system will be able to boot on new hardware without re-installing windows. The same way i did it yesterday when i changed the board in the first place.

Because of that, i didn't need to re-install or re-activate windows. I managed to use the installation that was already there.
My System SpecsSystem Spec
20 Oct 2015   #15
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

That old of system might of come with Windows XP. If it did you will still have to buy Windows 7 with the proper COA key.

Is their a Windows 7 sticker on the computer. It will look something like this.

Only 2,75GB RAM Usable, regardless of installed amount.-coa-certificate-authenticity.gif


My System SpecsSystem Spec
20 Oct 2015   #16
Slyve

Win7 Ultimate x64
 
 

There are stickers on both PCs. One for XP on the old one (the one i took the board out of) and one for win7 on the one i am currently using.

I assume this windows install came with the PC, although i can't be sure. I really hope that changing the Board back will resolve this issue. The System is running like crap with 2,75GB Ram.
My System SpecsSystem Spec
20 Oct 2015   #17
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

If your old motherboard came with XP then you can install XP on it.
In order to properly install Windows 7 you will need to buy Windows 7.
My System SpecsSystem Spec
20 Oct 2015   #18
Slyve

Win7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Layback Bear View Post
If your old motherboard came with XP then you can install XP on it.
In order to properly install Windows 7 you will need to buy Windows 7.
Thought as much. Then it should, theoretically, work normally, once i put the board the Win 7 PC came with back in, right?

Then everything would be back the way it was before i tried to upgrade the system.
My System SpecsSystem Spec
20 Oct 2015   #19
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Let me try again to explain.
If you use the old mother board or the new motherboard if you want Windows 7 you will need to buy Windows 7 with the proper COA key.

If you put the computer back the way it was when you started you should be able to use Windows XP. You will just have to install it unless you have the untouched hard drive that the system came with.
My System SpecsSystem Spec
20 Oct 2015   #20
Slyve

Win7 Ultimate x64
 
 

I never had the drive with Windows XP came with.

I did have the complete and working PC with windows 7, though. Then i combined the hardware of both PCs so i could install more ram blocks and made windows 7 bootable with paragon adaptive restore (found the guide for that here on the forums, actually) and it worked. Except that i can only use 2,75GB of Ram.

My Idea now is that i will rebuild the system exactly the way it was before i started to fiddle with it, in the hopes of undoing whatever i f-ed up.

The Hardware of the Windows XP PC will not be used, since i don't even know if anything of it works (except the board)
My System SpecsSystem Spec
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 Only 2,75GB RAM Usable, regardless of installed amount.




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