I am at a loss and hope someone would kindly help me out here.

My system is as follows as stated on UKT support:
Stated spec: 2GB DDR2 PC2-4200 (2x 1024MB) - 533Mhz
Motherboard spec : Dual Channel DDR2 800 / 667 x 4 DIMMs, Max. 8GB

Actually Fitted: SIS DDR2 1Gb x2 @ 667Mhz

I was hoping to upgrade to 2 x 4Gb @ 800 Mhz but as you can see I'm wondering which of the above is the correct answer. Unfortunately I'm a bit green so go easy!

Thanks in advance!

I take it your confusion is that the spec says 533mhz memory which the motherboard apparently doesn't support. And you appear to have 667mz actually fitted.

I'm afraid that rather reflects the quality of the info that one tends to have access to on Advents..........

I suspect that either the mobo does support 533 as well or the spec is wrong. Possibly it does support 533 and they just fitted 667 because it was just as cheap at the time. Or...............

But your real question is does it definitely support 800mhz for your upgrade.

I would suggest going to the Crucial site using the link to the left and running their memory advisor. If they give you 800mhz as an option, buy it from them (which helps support this site) and if they are wrong, they'll take it back.

But assuming you are running a 32bit version of Windows, I wouldn't fit more than 4Gb as it would be a waste of money as it wouldn't be utilised.

Thanks for your reply grasshopper,

I've dug a little deeper and my mobo is a foxconn G33M05 (with q6600) which supports 667/800, and as you suggest the quallity of info does leave a bit to be desired.

Had a look at crucial site and it didn't recognise the memory and didn't list my particular model number.

Thanks mate