1T or 2T

[biochip]

I currently have 2x 1gig dimms and want to add another 2x 1gigs to bump my memory up to 4gig at 1T, bless windows vista x64. I have an nforce 4 chip set.

But my question also applies all nforce chipsets and intel chipsets that run dual channel. Is It a BIOS thing or motherboard manufacturer thing? can u run 4 sticks at 1T?
Also on a motherboard that supports ECC memory how would this work? (server or workstation board, with more than 1 socket)
Does ECC memory run at 2T or 1T by default and if i have more than 2 sticks what will happen?

I am asking as I am looking to upgrade soon. One option is to go for a workstation motherboard with 2 sockets so that I could eventually have 8 cores. This option would be great as I do a lot of dev work but also play games

 

[drakore]

You will lose 1T if you have 4 sticks... with amds the 1t timing is important... so that is generally why people will grab 2x2gb for 4gb total

 

[Rottie]

When I add 2 stick of 1GB with 1T my rig runs quite fast than with 4 stick of 256MB w/ 2T it runs just ok but that is on AMD system I don't know about Intel.

And they are dual channel

 

[DrMrLordX]

If you're running a s754 or s939 system, 1T makes a significant difference. On AM2, not so much.