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Solved: How to get Windows 7 Home Premium x64 to use 16gb of RAM?


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24-Jul-2012, 11:09 PM #1
Solved: How to get Windows 7 Home Premium x64 to use 16gb of RAM?
My Computer properties tell me that I have 16gb installed, but it says that only 7.96gb is useable. How do I get it to use the rest? I am running Windows 7 Home Premium x64, so I should be able to max it out at 16gb.
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24-Jul-2012, 11:22 PM #2
If you look at Task Manager, chances are that the machine is only using about 3 GB's, anyway, so the rest is already unused.
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25-Jul-2012, 06:29 AM #3
Nope. It says my total memory is 8137 mb.

Even if it did only say I had 3 though, I'd still want to know how to get it to use all that's installed.
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25-Jul-2012, 07:54 AM #4
The motherboard supports 16GB? You're sure you have Windows 7 Home Premium and not Windows 7 Home Basic?
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25-Jul-2012, 09:44 AM #5
Go here and allow the Crucial System Scanner to load and run.

After the scan is finished and the report is displayed, copy and paste the URL to that report here so we can go there and view it.

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25-Jul-2012, 08:17 PM #6
I'm running an Asus Sabertooth 990fx, so it should be able to handle 16GB. And yes I'm sure that I have Home Premium x64.

I'll give Crucial System Scanner a shot.
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25-Jul-2012, 08:44 PM #7
Quote:
Originally Posted by Stonkey View Post
I'm running an Asus Sabertooth 990fx, so it should be able to handle 16GB. And yes I'm sure that I have Home Premium x64.

I'll give Crucial System Scanner a shot.
Could you post physical proof. I am one of those skeptical people. Screen shot would do.
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26-Jul-2012, 08:19 PM #8
Really, Squashman?
Funny how a screen shot would count as "physical" proof.

Anyhow. I'll get that screen for you eventually. But at the moment I have a friends RAM in my machine, so the screen shot wouldn't show the RAM count (unless you are just looking for proof that it's Windows 7 Home Premium). And the reason for that is that I have an issue that has eclipsed this one.

Here's the new thread:
http://forums.techguy.org/hardware/1...ml#post8423345

I will come back to this thread when I've cleared up the more urgent issue.
Real fast though, here's my Crucial scan:
http://www.crucial.com/systemscanner...4B863531D926C3

Last edited by Stonkey; 26-Jul-2012 at 08:26 PM..
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28-Jul-2012, 04:56 AM #9
Quote:
Originally Posted by Stonkey View Post
I'm running an Asus Sabertooth 990fx, so it should be able to handle 16GB. And yes I'm sure that I have Home Premium x64.

I'll give Crucial System Scanner a shot.
It really doesn't matter what board you have when it comes to the OS supporting that amount of RAM. It would still be very possible that 16 GB's was not supported on that system.

Why does it say that you only have 4 GB's installed?

Quote:
Originally Posted by Stonkey View Post
Nope. It says my total memory is 8137 mb.

Even if it did only say I had 3 though, I'd still want to know how to get it to use all that's installed.
Not "total" memory, but memory "in use". The rest is not being used for anything. You have already said that your usable memory is 8137 MB's (=7.96 GB's). So you are far from using even the amount up to 8137 GB's, never mind anything above that.

It's kind of like you have an empty swimming pool in your yard and you decide to expand it to a much larger size, but still leave it empty, just in case, someday, you may want to swim laps the entire length. If you're not using the pool, it makes little sense to make it even bigger so that you have even more empty space.
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Last edited by Elvandil; 28-Jul-2012 at 05:20 AM..
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09-Aug-2012, 09:53 PM #10
I only mentioned the mobo because flavallee had asked about it.
It said I had only 4gb because I had just returned the RAM for replacement and I was using a different stick (as I mentioned in my last post).

I have the screenshot now, but it seems that the RAM was the problem the whole time.
Where it now says 16gb, it had followed that with a "(7.96 useable)" before.

I'm sure that I'll find some way to use all 16gb. Haha.

Thanks for the input everyone.
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10-Aug-2012, 03:50 AM #11
windows isn't activated
I think that is the reason why

I remeber something that I read a long time ago that only 8gb is available to unactivated windows

Last edited by dvk01; 10-Aug-2012 at 04:00 AM..
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10-Aug-2012, 06:31 AM #12
Well, I had actually activated it before and it still had the issue. I'm holding off on activating it now because I want to make sure that I solve my problems. I have been re-installing the OS over and over, and I don't want to keep re-activating it. I'm hoping that the fact that I activated it once already isn't going to mess me up.
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