Is 2.9v Too high for DDR?

[sapiens74 0]

I had to set it as 2.9 for some reason it goes from 2.7 to 2.9 with no 2.8

 

But its rock solid stable at that voltage.

 

Anyone know about this stuff?

[tylau 0]

Depends on what DDR ram you use, many DDR400 has some odd recommendation range from 2.7V to 2.9V, OCZ, GEIL, Samsung has all 2.7V, and Geil DDR433 use a whopping 2.9V as recommended voltage. However, for DDR333/266, it is useless to set it to that high voltage, as DDR are usually optimally stable at some moderate voltage, too high voltage for a DDR bus would reduce its stability in general. The time for certain given electric charge to go through some specific gate are reduced for raising the voltage, but if it is too high, the falling edge of the voltage line would be too high for it to maintain accurate timing on the falling edge trigger. The same almost apply to a DDR Athlon CPU FSB.

[sapiens74 0]

I backed off the 2-2-2 timgins and set it to 2,7

 

Hopefully the next bios will allow for 2,8