Hello,

I have a Dell SC1425 1U server. It has 512 MB (it is 5 years old) and  want to 
upgrade the RAM. 

I bought 4x 1GB RAM but it does not boot - POST error "no memory modules".

It looks like I have the wrong RAM, even though I thought I was being careful 
and checked the system technical specifications here :

http://support.euro.dell.com/support/edocs/systems/sc1425/en/ug/f3593aa0.htm#wp1053748

72-bit, ECC, PC-3200, 
Unbuffered, DDR II SDRAM, DIMMs, 
rated for 400-MHz operation
Six 240-pin
256 MB, 512 MB, 1 GB, or 2 GB

I bought :

Kingston ValueRAM memory - 2 GB : 2 x 1 GB - DIMM 240-pin - DDR2
http://www.dabs.com/products/kingston-valueram-2x1gb-400mhz-ddr2-ecc-r-4NR6.html?refs=52300000-4294960364-4294952679-354710000-427490000

DIMM 240-pin / 400 MHz ( PC2-3200 )
ECC / CL3
Unbuffered

So - digging a bit. Looking closely at the "System Installation" :

http://support.euro.dell.com/support/edocs/systems/sc1425/en/it/index.htm

The "System Memory" section says :

"You can upgrade the system memory by installing combinations of 256-, 512-MB, 
1-GB, and 2-GB registered memory modules."

Wikipedia says "registered" is another name for "buffered".

So - is this my problem? The tech specs say "unbuffered" but the "System 
Installation" says "buffered" ("registered").

The RAM I bought matches the tech specs but is "unbuffered" and the system 
seems no RAM on boot.

Can anyone confirm that my RAM should be *buffered*?

This sort of confusion (and it appears to be in the official docs as well) has 
happened before and is very frustrating. Thanks for any help.

Cheers,


--
Alastair Sherringham
Digital Vision UK
t: +44 (0)20 7734 8282 f: +44 (0)20 7292 6969


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