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Need some clarification on suitable ram for DELL poweredge SC440

Last response: in Networking
November 1, 2010 4:56:59 PM

Heres the problems.

A client of mine has one of these which I beilieve is a basic one socket server tower. He currently has 2GBs of ram installed and he wants to upgrade to 4GBs.

His current configuration of ram is 4 x 512mb 1Rx8 PC2-5300E-555-12, Model Number Hynix HYMP564U72CP8-Y5

I sent him some 4 X 1GB 1Rx4 PC2-5300P-555-12, Model Number Hynix HYMP512P72CP4-Y5

Result, No Post no Boot.

Ive tried to do some research into this but the information is conflicting.

According to the spec sheet from dell this thing can take

"Four ECC DDR-2 533/667 SDRAM DIMM sockets for up to 4 GB of memory"

As far as I am aware this is "ECC" ram.

I am missing something here, is the difference between PC2-5000E and PC2-5300P??

According to my research I did find something about registered and unregisted. I thought all ECC ram was in fact registered.

Can I have some clarification or advise on the issue please!!!
November 1, 2010 6:24:27 PM

Thanks for that but I really wanna try and figure out why the memory I have is not working on this machines. Its definately ECC unbuffered ram, in theory it should work.

Im hoping someone can explain it to me
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November 1, 2010 7:14:58 PM

NO not all ECC is Registered.

The Dell wants ECC Unbuffered. the memory you are trying to use is Registered and therefore does not seem to work.
February 3, 2011 12:37:57 AM

Ok Guys forgot to reply.

I know theres a bif difference in ECC, 2 type ECC Registered and ECC unbuffered. they are not compatible and interchangable with one another.

Also most systems that will accept ECC Unbuffered Ram usually 95% of the time accept NON ECC ram, which is easier to find and much cheaper then ECC unbuffered definately in terms of DDR1