Looking for a cheap upgrade mobo...

[martynh]

Dunno if anyone else reads Custom PC but there's a new mobo out for AMD 754 chips, Nforce4 with 2 PCI-E x16 slots for SLI compatible cards...
http://www.overclock.co.uk/customer/product.php?productid=18904
http://www.overclock.co.uk/customer/product.php?productid=18987

£75 for this and 2 6800GS cards(£182 each)...£450 lovely!

 

[wozzaa]

Kind of pointless really. The 754 socket doesnt have cpu's fast enough really anymore to really give an sli system all it needs plus the memory only running in single channel does really hamper performance. I know from testing my own 939 board in single and dual channel.

 

[Griff]

Kind of pointless really. The 754 socket doesnt have cpu's fast enough really anymore to really give an sli system all it needs plus the memory only running in single channel does really hamper performance. I know from testing my own 939 board in single and dual channel.

While I agree it's a waste of money who said anything about running in single channel???

 

[wozzaa]

The socket 754 cpu is a single channel memory component only the onboard memory controller can only use single channel on that socket hence the reason we have socket 939 as well.

This means that the cpu is basically starved in a way and as a result so will the gfx cards.

Tried it on my own running benchmarks and noticed i wasnt getting good scores didnt realise i didnt put memory in right sockets changed sockets benchmarks shot up massively and games etc all recieved a noticeable increase.

 

[Griff]

Socket 939 came about due to the increase in transistors and there physically wasn't enough pins on the old 754 cpu's.

 

[wozzaa]

AMD64 cpus have the memory controller built into them.

And in socket 754 guise that memory controller is single channel only.

Dont believe me sure you can find it says it on the AMD website. 64bit memory interface = single channel 128bit - dual channel check the specs for the socket 754 system there all 64 bit.