Windows 7 Ram swap safe?

Chris Bradley

New Member
Joined
Jul 2, 2011
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4
Hey there,
Im new here and I just wanted to just ask a quick question to anyone that will hear me out...
Ive currently got 2 systems running..
-Win 7 32bit with 2x2gb DDR2 ram
-Win XP Pro with 2x512mb DDR2 ram

and I currently have a single 1gb DDR2 ram card spare.

as my Win7 system is only utilizing 3 out of 4gb ram,
I was wondering if it would be safe to swap one of the 2gb cards with the 1gb, and install it into the other system?
Would this work, and is it safe?
Thanks
 

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Solution
As Far as I'm aware, 32 bit systems are "limited" to the amount of ram they can use, circa 3.25gb. Something to do with x86 Legacy, I think.

But kaos is quite right with his statement about using matched ram. Putting in the 1gb stick with one of your 2gb sticks will possibly cause you no end of problems with your Win7 set up. With 7 it's always best to use matched sets of Ram (Make, Size, Series, Batch etc..) and the way to do that is buy it as a set.

I'd possibly try the 1gb stick in your XP set up with one of the 512mb. And I'm only saying that because I used to throw anything (including the unknown one I found under the wardrobe!) into my XP set up and it never used to complain. Not saying that's a good practice though!

You can...
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He's mine from my lappy, it only shows 2.87GB out of 4GB, my Video card uses 256MB of that, But I'm missing 1GB on a 64Bit OS, even with mapping, I have seen it on other computers too, it's typical for older computers. Your's is 32bit and seems right for a 32bit OS, around 3.25 - 3.5GB the rest is not usable by the operating system, if you have onboard Video your 3.25 and 3.5GB wil shrink to 3.12 and 3.25 respectfully.
 

Hi maicz — yes, some people still use DDR2-era systems, especially for:
  1. Retro Windows XP / Windows 7 builds
  2. Offline legacy software
  3. Old games
  4. Basic file/print server use
  5. Testing old hardware
That said, I would not recommend using Windows XP or Windows 7 online anymore unless the machine is isolated, because both are out of support and risky on the internet.
If you mean the original RAM question: yes, swapping DDR2 sticks can still work, but you need to check:
  1. The motherboard supports the RAM size.
  2. The RAM speed/voltage is compatible.
  3. The system remains stable after the swap.
  4. Ideally run MemTest86 after changing RAM.
For the old setup mentioned in this thread, keeping 2x2 GB in the Windows 7 system would usually be better than mixing 2 GB + 1 GB, because the matched pair may run in dual-channel mode. The spare 1 GB DDR2 stick would probably be more useful in the XP machine if the board supports it.
 

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