Memory timings query

[Bigmonty]

Hi

I have 4 sticks of the following RAM

PC6400 DDR2 800Mhz, CAS 4-4-4-12
- Hand-picked BGA 64Mx8 Chips
- 240pin, Non-ECC, Un-buffered DIMM
- Racing-Orange Aluminum Heat Spreader
- Retail Package
- Lifetime Warranty
- Working Voltage: 1.8v ~ 2.3v


However if I leave my Bios on auto it sets the timings as 5-5-5-31.

I go into my Bios and change the timings to 4-4-4-12-1T and the PC then doesn't post. I go back in and alter it to 4-4-4-12-2T and it works fine. What is the difference between 1T and 2T and is one safer than the other. Incidently I also set the voltage on the memory to 2v rather than leaving it on auto.

Cheers

 

[Bigmonty]

That helps. Thanks a lot for your replies.

As for voltage I am assuming 2v should be enough? Is it safe enough to up it to 2.3v if I find memtest as errors later on? What strain does that put on the motherboard?

Cheers

 

[Bigmonty]

Cheers mate.