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DDR2+DDR3 on the same board?

post #1 of 8
Thread Starter 
I dont know if its common but its the first time i heard about it. A friend of mine, asked me what memory to pick to upgrade his system and i asked for his mobo name so i could see if its DDR2 or DDR3. It seems it both supports 2xDDR3 and 4xDDR3. So does that mean, that both revisions work at the same time? I mean if he has 2 sticks of DDR3 he can add 2 stick of DDR3 and the whole memory will work in unison?

This is heis mobo btw.

http://www.gigabyte.com.gr/products/mb/specs/ga-ep45c-ds3_10.html
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post #2 of 8
I'd say you either use DDR2 or DDR3 but can't mix and match.
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post #3 of 8
I have never seen that before either.

They Might work at the same time but it wouldn't work well.

The speed difference between ddr2 and ddr3 wouldn't play nice together
post #4 of 8
Unfortunately as tompson said it is one or the other, you can not use both DR2 and DDR3 at the same time.
post #5 of 8
Just look at the instuctions. You have to use DDR3 or DDR2.

"Before installing a memory module , make sure to turn off the computer and unplug
the power cord from the power outlet to prevent damage to the memory module.
DDR2 and DDR3 DIMMs are not compatible to each other or DDR DIMMs. Do not
install DDR DIMMs on this motherboard.
Populating DDR2 and DDR3 memory modules simultaneously is not supported"

http://download.gigabyte.eu/FileList/Manual/motherboard_manual_ga-ep45c-ds3(r)_e.pdf
 
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post #6 of 8
Quote:
Originally Posted by alex-fitton View Post

Just look at the instuctions. You have to use DDR3 or DDR2.
"Before installing a memory module , make sure to turn off the computer and unplug
the power cord from the power outlet to prevent damage to the memory module.
DDR2 and DDR3 DIMMs are not compatible to each other or DDR DIMMs. Do not
install DDR DIMMs on this motherboard.
Populating DDR2 and DDR3 memory modules simultaneously is not supported"
http://download.gigabyte.eu/FileList/Manual/motherboard_manual_ga-ep45c-ds3(r)_e.pdf

RTFM - Read the flippin manual indeed!
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post #7 of 8
found the manual here, too . . .

http://www.manualowl.com/m/Gigabyte/GA-EP45C-DS3/Manual/208045

pg. 10.

i suggest use the ddr3. i have an asrock amd mobo that has this feature and it can mix them either.
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post #8 of 8
Thread Starter 
Thing is though that DDR3 only allow for 2 sticks and 4GB maximum memory. The guy that wants to ugrade, already has 2 sticks of 4GB total, so if he does want to upgrade indeed, he'll then have to discard these modules and go for 4x2, 2x4 or 4x4 of DDR2 memory. Wont that be a compromise? He discards DDR3 memory and demoting to DDR2?
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