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8gb RAM installed, but only 3.99 "usable" -?

My google-fu says:

1)Press Start -> Run

2)Type "msconfig"

3)Go under the "Boot" tab

4)Click "Advanced options" button

5)UNcheck "Maximum memory"

6)Reboot
 
It's unchecked - good suggestion though. I did some light Googling but didn't see that one mentioned yet.
 
/shame

Yeah, I should have known better to reseat before posting. I guess I assumed that because it detected all 8GB, then they must have been seated properly. Weird.

Thanks again.
 
Wow that's weird. Like a noob I thought "you has 32-bit OS nub" but then I saw the screenshot. I would not have thought it would be a seating problem if the OS (and BIOS) saw all 8GB. Would love to know the resolution.
 
Yeah, sorry that my last post wasn't clear: reseating the RAM did indeed fix the problem. I have no idea how Windows detected all 8GB of RAM if one of them was not seated properly. Thanks everyone!
 
Yeah, sorry that my last post wasn't clear: reseating the RAM did indeed fix the problem. I have no idea how Windows detected all 8GB of RAM if one of them was not seated properly. Thanks everyone!

If the SPD pins were connected, then the BIOS and Windows memory-detection routines that count up the DIMM sizes using the SPD info would still work, but Windows own memory-size-test routines would fail.
 
When you reseated them did you have to move them around to different DIMM slots or just actually "reseat" the same DIMMs in the same slots they were already installed into?
 
Ram can be a real PITA to get installed correctly, especially if you have one of those gargantuan coolers than seem to be all the rage these days. I think that I'll go to a full tower when I upgrade next time, at least that will give a bit more room to fiddle around under the hood.
 
Ram can be a real PITA to get installed correctly, especially if you have one of those gargantuan coolers than seem to be all the rage these days. I think that I'll go to a full tower when I upgrade next time, at least that will give a bit more room to fiddle around under the hood.

I'm using just a simple Corsair H60 with push/pull fans. I know the big air coolers probably run a bit cooler than the H60, and are cheaper - but I'm using it exactly for the reasons you stated. I can easily change out my ram or processor if I want to.
 
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