Is there a reason to why my RAM is running at these timings?

[thesurge]

Is there a reason to why my RAM (Corsair Value) is running at these timings?

I'm using a divider, but can I tweak my CAS latency to 2.5 safely? What are the stock timings for this RAM? 2.5-x-x-x?

ss (cpuz)

 

[RichUK]

First of all have you got a link to the RAM you are using?

Are the stock timings the timings stated in the CPU-z screenie?

If the default timings is indeed a CAS of 3 at DDR400 i doubt it. The only thing you can do is just try it, and remember to up the voltage to ~2.85v

 

[CP5670]

There are actually two kinds of Corsair VS memory, one rated for 2.5-3-3 and one for 3-3-3. The 3-3-3 sticks have "C3" at the end of their product codes while the 2.5 ones don't.

 

[thesurge]

i bought corsair value select ddr400 from zip zoomfly rated at 2.5 cas latency and it even states so on my invoice. should i use a64 tweaker and tighten the timings?

the SPD tab of CPU-Z (stock memory) shows-

200mhz
2.5-3-3-8

but

Memory Tab shows 3-3-3-7

 

[RichUK]

Originally posted by: thesurge
i bought corsair value select ddr400 from zip zoomfly rated at 2.5 cas latency and it even states so on my invoice. should i use a64 tweaker and tighten the timings?

No just go into the BIOS and under the CAS timing change it to 2.5 or auto (as if it is a CAS of 2.5, auto will read it off of the SPD and set it accordingly .. aka CAS2.5)

 

[thesurge]

SS of BIOS

There seems to be more options that I need to configure (that don't match my RAM specifications). What should I change? Is my RAM running in 2T instead of 1T (it's in 2x512)?

 

[RichUK]

I?m not familiar with that BIOS, however looking at that screenie, it states that you are already running the CAS timing or ?CAS# latency (tcl)? on "auto", which would indicate that is your default CAS timings which has been read from the SPD chip, and is in actual fact a CAS of 3. If you do in fact have that certain VS memory, which is capable of running a CAS of 2.5, then I would suggest manually setting the 2.5 value within that field ?CAS# latency (tcl)?.

With regards to the 1T timings I think most BIOS?s, (well at least mine did) automatically sets the 1T/2T timing at a default of 2T,. Change this to 1T it will be fine.

Once again if you memory can indeed run a CAS of 2.5 at DDR400 then just set the said value to 2.5, I would test with memtest as well just to clarify stability without assuming so. Setting the value to 1T should be fine just go ahead and change that.