How do I know if my memory is 1T, 2T or even 3T?

[hat]

Getting this soon, hopefully today:

http://www.crucial.com/store/partspecs.aspx?IMODULE=BLS2G3D1609DS1S00

I knew it was 1600, 1.5v, 9-9-9-24 timings when I bought it, but I thought I didn't look to see what the command rate timing was. It didn't say on Newegg's page, or even on Crucial's page about the memory. How would I find out what my stock command rate setting is?

 

[brandonwh64]

That timing is set by the motherboard.

 

[natr0n]

it's 2 T

boards can do 1 or 2, 3 doesn't exist

 

[Aquinus]

3 doesn't exist

My motherboard has an option for T3.

 

[natr0n]

My motherboard has an option for T3.

 

[sneekypeet]

Not at all, my P55 gigabyte boards offer T3 in the memory settings.

 

[natr0n]

I never seen that before, I guess it's intel only feature.

 

[cadaveca]

it's 2 T

boards can do 1 or 2, 3 doesn't exist

That "T" is actually a delay between CAS commands(sent by memory controller). 1 "T" sets a specfic delay(usually around 5 ns) between when CAS commands can be sent.

Ergo, any "T" is possible. Current products(memory controllers) support 1, 2 and 3 "T" settings. Most only support 1T for "default" speeds(ie, 1600 MHz or less for IVB, 1866 MHz or less for FX). Higher than that usually requires 2T, as one "T" ends up far shoter than that "around 5 ns" due to the speed the memory runs at.