t-bird 650 wont do more than 780 HELP!!!

[steven185]

just put this thing together 2 days ago
oem athlon thundrbird 650@780
chrome orb cooler
msi kt7pro2a
2 128mb mushkin pc133 cas2 rev2
ibm deskstar gpx75 7200rpm 15gig
voodoo3 3000
hp 9100cdr
panasonic 12x dvd
inwin midtower 300w powerman p/s
sblive value
2 80mm case fans in/out
win98se

if I try to go with 8x mutiplier.The system will only post then freezes but i dont think its tempature cause it says cpu temp is only like 100f. voltage is turned up to 1.85 max on this board
I would like to be able to get at least 830mhz out of it
any suggestions would be greatly apreciated

It runs perfectly stable at 7.5x and fsb at 104

 

[Biggs]

You got unlucky with your chip. Not all Thunderbirds overclock the same.

 

[Viperoni]

Considering that the Chrome Orb is worse than the stock retail heatsink that comes with retail TBirds, you may want to upgrade it.
I'm putting a pep66 with a thin delta fan on mine, should be pretty efficient.

BTW: The temp sensor underneath the CPU socket in inaccurate, you're probably running hotter than that.

 

[LXi]

There is no sensor under the socket of K7T Pro2A.

 

[SiliconVandal]

It's probably not the chip, it's more likely cooling. As Viperoni said, the Chrome Orb sucks for cooling. I would get a PEP66 or PAL6035 (FOP 38/32?) and see if that helps. I doubt its the T-Bird.