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"Memory"

Aside from capacity (512Mb), speed (DDR400) and manufacturer (Crucial), how else do I choose what RAM I want? What other aspects improve RAM and how?

For example, is it worth forking out for a buffered or registered DIMM type?

Hmm - bit confusing.

How do I find out if my motherboard supports ECC?

Thanks for the information.

Sounds like ECC is the way to go then, the only disadvantage being the minor slowdown which I doubt will be noticeable.

Non-parity contains one bit of memory for each bit of data that is stored. Eight bits are used to store each byte of data.

Parity memory adds an extra bit for every eight bits of data. It is used for error detection and correction.

Quick info guide - [URL]http://www.pcguide.com/ref/ram/err.htm[/URL]

Buffered I asked Jeeves (Helpful Chap) [URL]http://www.ask.co.uk/ix.asp?q=what+does+buffered+memory+mean&ac=SHOP&xx=0&qid=4B0601F3304D874BABC50D5857740655&p=0&s=2&sp=ix&fn=t&b=0&fo=2&r=10&io=1&fp=1&fr=1&url=http%3A%2F%2Fwww%2Eocsystem%2Ecom%2Fwhatunandbuf%2Ehtml&adurl=[/URL]

Unbuffered modules are the most common. In unbuffered memory, the chipset controller deals directly with the memory. There is nothing between the chipset and the memory as they communicate. Buffered modules contain a buffer to help the chipset cope with the large electrical load required when the system has a lot of memory. Registered modules are unbuffered modules that contain a register that delays all information transferred to the module by one clock cycle. Buffered and registered modules are typically used only in servers and other mission-critical systems where it is extremely important that the data is properly handled.

Anyone?

What d'you guys think of this:

[URL]http://www.komplett.co.uk/k/ki.asp?sku=116452&cks=PRL[/URL]

It's got non-parity error checking. Anyone know what that means?

Hmm. The buffered/registered/whatever DIMM has ECC error checking, just like the unbuffered ones.

Speaking of which - what's the difference between non-parity and ECC error checking?

Not bad for 1GB, cas is a bit high, but you could probably tighten that up a bit.

Speaking of memory I've been looking at this. What do you guys think?

[URL]http://www.ebuyer.com/customer/products/index.html?rb=1191219886&action=c2hvd19wcm9kdWN0X292ZXJ2aWV3&product_uid=54472[/URL]

It has some kind of advanced error checking thing, but its mostly used just in servers.

I have no idea whether it would be or not.

What benefits does it give over unbuffered?