Highest voltage for Kingston Hyper-X PC5400 DDR2-675?

[HeH8tzMe]

The website lists 1.8V @ 4-4-4-12 & 1.85V @ 4-4-4-10
What would the highest REASONABLE voltage to push this RAM?

 

[xkroma]

i am currently running it a 4-4-4-10 @ 2.1 with no hiccups on a dq6

 

[HeH8tzMe]

Whats the max speeds you've gotten on this RAM? When I manually set the speeds & timings it will not POST above 540MHZ @ any voltage 1.9 - 2.2v

 

[xkroma]

i need a board and proc man b4 i can tell you any thing it runs for me @ 800+ with bumped volts