Two types of DDR2 ?

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Hello again!

I've two ddr2 memory modules but they are different...

First one is Hynix 512mb 1rx8 pc2-4200E-44-12
Second is 512mb 1rx8 pc2-5300f-555-11-a0 ddr2 667 cl5 ecc

But they are different and don't fit in the same socket...

Any ideas ???

 

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Can you post the specs of your motherboard, or a link to the motherboard on the manufacturer's website?

 

I don't have motherboard which support this memory...

I just have these modules...they are different...looks almost the same but the hole is in the wrong place

 

runiu,

How do you know they are DDR memory modules?

 

pc2-4200 it's ddr2 and pc2-5300 is also ddr2 isn't ?

 

Possibly one is registered memory, and the other is unbuffered.

Post the actual part numbers and I'll look it up. For a Hynix module the number will start with HY.

Harry.

 

HYMP564U72BP8-C4 AB-T

second one is

MT9HTF6472FY-667B4D3

I don't know the manufacturer for the second one

 

I think that second one is FBDIMM and its used mainly on servers

 

Raffaz you're right...That memory is FB-DIMM...

Thanks

 

This is an unbuffered ECC module.

Micron made this one. It is fully-buffered, which is why the key is in a different position. It is also ECC.

Harry.