Abit..................................P4 board owner.

[TimeKeeper]

On the softmenu III. There is "DRAM Ratio H/W Strap" option.
What does it really do?

The reason I ask is that I owned a BD7 and now BE7.

Funny thing is if I choose to have controll "BY CPU", my system become extremely unstable.
*increse volt doesn't help*
If I have it on "high" or "low" the PC will NOT choke a bit.

This is what I have...I am running P4 2.4B @ 168 FSB (3.03Ghz)
Voltage is set at 5% and Kingston PC2700 RAM is @ 2.6V

 

[Viper96720]

Have no idea just think it's another way of saying 100Mhz fsb cpu or 133Mhz cpu. I think by cpu uses a 4:3 ratio if hwstrap is low and 1:1 if set to high. So using low hwstrap and by cpu your memory would be running at 221Mhz if the fsb was at 166Mhz.

 

[TimeKeeper]

Originally posted by: Viper96720
Have no idea just think it's another way of saying 100Mhz fsb cpu or 133Mhz cpu. I think by cpu uses a 4:3 ratio if hwstrap is low and 1:1 if set to high. So using low hwstrap and by cpu your memory would be running at 221Mhz if the fsb was at 166Mhz.

hmm.........actually, there is option under CPU/DRAM ratio. (1:1, 4:3, 3:4) And it will let you know exact speed you are running.

If I have it on controlled "BY CPU", and set it to "1:1", the cpu and ram will both running 168FSB as indicated on boot screen.

If I set the Controlled "high", and set it to "1:1", they both still run at 168FSB.

HOWEVER, why would controlled "by cpu" so unstable?

 

[Viper96720]

Found this at the abit forums maybe related to the bad stability.
memory problems

 

[TimeKeeper]

Originally posted by: Viper96720
Found this at the abit forums maybe related to the bad stability.
memory problems

thanks.
Just kinda odd that controlled "BY CPU" actually force my memory to run out of spec??

 

[Viper96720]

That's for the IT7 but you could check your fsb speeds in windows and see if it's happening to yours. I'm assuming abit uses similar parts.