Ebay Memory will not work.. Help. 2

[SteveAudus]

I have just purchased a couple of sticks of memory from E-bay.

I need to check it's compatibility with my motherboard,
to check it should work.

Before I return it to the seller as broken. I need your help...

My Motherboard is...

Win Fast K7ncr18d
Memory specs in the manual says
it supports..

184pin DIMM, DDR RAM 8mb upto 512MB
PC1600, PC2100, PC2700 & PC3200
2.5v unbuffered.

http://www.leadtek.com/motherboard/winfast_k7ncr18d_2.html

(Note I have one stick of 256MB DDR-333 CL2.5 PC2700U
in and working fine.)

The product brought was this...

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=6750774679

a pair of
Registered Samsung PC2700 (333) 512MB DIMMS (Dual Channel)

Details from the stickers on the memory
AB64L72Q8S8B3S
ATP 512MB PC2700 ECC REG

MMS120
13112171

Chips
SAMSUNG 328
K4H560838E-TCB3

http://www.samsung.com/Products/Sem...AMcomponent/256Mbit/K4H560838E/K4H560838E.htm

------------

I can't see why they will not work,
but my system ignores them if I put them with the working memory,

It gives out a 2 second beep then silence for
a couple of seconds then repeats
when both or just one of new sticks are in.

Please please help..
Is it dead or incompatibility...
Any suggestions?

Thanks,
Steve

http://www.chaucer.sheffield.sch.uk

 

[maultier]

The key difference is 'ECC'.
Look at your motherboard manual and verify whether or not the board supports ECC memory. There may be a bios setting to turn on ECC support.

 

[SteveAudus]

What does ECC mean?

Thanks for the help.

http://www.chaucer.sheffield.sch.uk

 

[SteveAudus]

I have looked at the manual and in the bios,
I can't see any mention of ECC Register Memory.

Do I have to except it's just incompatibile?

But what is registered and unregistered memory?

Thanks for any help.

Steve

http://www.chaucer.sheffield.sch.uk

 

[dakota81]

ECC provides error checking. See how the new Samsung ram have more chips on each side of the memory than does the old ram. That extra chip is a parity bit.

 

[maultier]

ECC is error correcting memory. It has extra bits allocated to checksum the memory locations and identify/correct flaky memory. If your motherboard says nothing about supporting ECC, then it doesn't and the dimms will not work.
Registered memory means it is a higher quality stick.
Unregistered memory is usually less expensive but works fine in the majority of home pc's.

 

[cdogg]

Most motherboards do support ECC, and many will work with both ECC and non-ECC installed (though that configuration is pointless because all installed DIMMs will run without ECC enabled).

~cdogg
[tab][navy]For general rules and guidelines to get better answers, click here:[/navy] faq219-2884

 

[SteveAudus]

So it looks like my motherboard

http://www.leadtek.com/motherboard/winfast_k7ncr18d_2.html

just doesn't like the registered memory.

Thank you all for your help.

I will just have to ask the seller if they will take it back, or try to sell it on.

Cheers,
Steve

http://www.chaucer.sheffield.sch.uk

 

[maultier]

The chipset has to support ecc. If you have an ecc motherboard, then both types (ECC and Non-ECC) will work.