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Pairing Same RAM But Different Amounts


prcdc

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I currently have 2x512 RAM chips in my computer.

 

Model: Corsair XMS2 TWIN2X1024-6400C4 Matched Pairs 1GB kit (2x512MB) PC6400 DDR2-800 CL 4-4-4-12 240-pin Dual Channel Memory

 

I want to add in another 2 chips (2x1GB) with my current (2x512MB)

 

Model: Corsair XMS2 TWIN2X2048-6400C4 Matched Pairs 2GB kit (2x1GB) PC6400 DDR2-800 CL 4-4-4-12 240-pin Dual Channel Memory

 

Is this possible and will it slow anything down or possibly not work?

 

Thanks

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It's never supported, nor is it advised to mix and match different ram modules and IC's.

 

That being said, it might work, it might not. You may have to drop your memory speed from 800Mhz to 667Mhz and it might not work even then.

 

All you can do is try.

 

I currently have 2x512 RAM chips in my computer.

 

Model: Corsair XMS2 TWIN2X1024-6400C4 Matched Pairs 1GB kit (2x512MB) PC6400 DDR2-800 CL 4-4-4-12 240-pin Dual Channel Memory

 

I want to add in another 2 chips (2x1GB) with my current (2x512MB)

 

Model: Corsair XMS2 TWIN2X2048-6400C4 Matched Pairs 2GB kit (2x1GB) PC6400 DDR2-800 CL 4-4-4-12 240-pin Dual Channel Memory

 

Is this possible and will it slow anything down or possibly not work?

 

Thanks

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Thanks for the reply.

 

The Ram is all the same speed though. Just 1 sets of 512 and 1 set of 1024. Maybe I didn't explain correctly. I figured it would not work but I thought I would ask. I would hate throwing away a gig of ram.

 

Don't people install 3 gigs total with 2 1024 chips and 2 512 chips all the time?

 

Thanks again btw!

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It's possible, but not guaranteed nor recommended. Different sizes / versions of memory use different ICs, and modern memory controllers don't like dealing w/ different ICs. Maxing out the slots also puts a load on the memory controller, and dropping the speed can help w/ that as well as dealing with different ICs.
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