Help me get to 166fsb PLEASE!!!!!!!!

Hey running a 2000+xp tb currently @ 1.897 (11.5/165) on an asus a7v8x MB i run 2 sticks of crucial 2700 ram (512mb chips) a gfroce4 ti4800, Cant get the friggin thing to hit 166fsb heard the ram doesent operate well at anything but stock timings so im goign to switch those back to default and see if itll go higher then, maybe pump a little more voltage to the ram and deffinately more voltage to the processor if it needs it currently at 1.80, ill take it as high as 1.9 if anyone has suggestions as to what i can do to take this thing higher please help me!

have you enabled the 1/5 dividor in the bios?

Why not lower the multi's? Then you could probably gain more FSB.

true, didnt see it was a tbred, set it to 11x166 and use the 1/5 divider option in the bios, that outa do it. that will give you 1.83Ghz.

What motherboard are you running?

hes running an asus a7v8x, like he said in the post.

Maybe the key is in your memory timings? If its real 2700 it shouldn't be the problem in reaching 166fsb. Since the kt400 normally has a 1/5 pci divider, I'd look for that and turn it on. In my case, my kt400 EpoX does it automaticly (kinda sucks). I'd almost assume that its on since 165/4 is 41.25 mhz through the pci bus. Hardware can sometimes fry in the 30's.

If you happen to have your memory at its fasetest settings, I don't think a few fsb mhz would really be worth easing back on the timings (or at least both will be equal). I'll also assume that 'stock timings' means not the slowest (nor fastest) timings. Relaxing your timings as much as possible from 'stock' might be worth the 1 or 2 fsb mhz you get. Kinda depends on the application.


Edit: 2 things. My kt400 seems to give my memory a bit less volts than it shows (-0.04v), so a voltage bump might help. The other thing is that tbreds rarely [never?] need over 1.8volts to hit 1.9ghz - the newer tb-b's are getting past 2ghz on less than 1.6volts. Unless thats a tbred-a, I highly doubt you need 1.8volts, let alone 1.9volts. A system is only as strong [fast] as its weakest link, and pumping up the other parts won't do much good.

Yeah it is actually a tbird A and im running 1.9v to it, i dotn know where to find the 1/5 divider your talking baout but if it helps my settings say 11.0X174/34 btw i did lower the multi and raise the fsb might try lowering it more and upping hte fsb more

I couldn't get over 151 fsb and i turned on my 1/5 and it does 166 no problem.

Your motherboard does not let you change the PCI divider separately from the FSB speed. When you selected 174/34, that included the 1/5 PCI divider (174FSB /5 = 34.8PCI). I don't know how high your memory will run, but you can certainly try lowering the multiplier and raising the FSB speed even more.

Just raised it im at 182 now, running prime 95 now........im wondering how high the fsb will go, anyone have any idea?

Personally I try to keep the PCI bus under about 38 MHz. That way I don't have to worry about hard drive corruption. With the 1/5 divider, this would give you a FSB of 190 MHz.

seems ive gotten to 183/10.5 and that seems best so far, tried 190/10 wouldnt run for more than 10 minutes