1G/266 Tbird suddenly loses some of the mults.

[Hoot]

For those of you who are not following TT120s problem, I have experienced a similar fate. Rather than post twice, here is the link:

http://forums.overclockers.ws/forums/UltraBoard.cgi?action=Read&BID=2&TID=13181&SID=36535

Hoot

[trimai]

I have the same motherboard as you and my 1GHz Tbird is B type (200FSB). I always run my system at 10*140 = 1.4 Ghz. After checking your post, I change my multiplier to 10.5 with FSB setting at 133 to get 10.5 * 133 = 1398 Mhz. The system also runs stable and does not give me any problem either. My CPU is multiplier locked when I first bought it. I unlocked the CPU with the defogger kit. Is it possible that your factory unlocked CPU may not have good connection on the L1 bridges? May be you shoud try to unlock it again using a defogger kit.

[William]

the only thing i can think of is that you have something wrong with your bridges if you have crossed them. I can't think of any thing else. You may have a tiny bit of current that could cause it(i know I am stretching here). Reading the other post, the stress of the peltier may be it. (Now, to get really wild here) Amd could have made some bum cpus that will only work at the default multiplier even if bridges are unlocked. This is definately a far fetched theory, i think the stress has the highest probability of being right.

[Hoot]

I'm pretty sure I brought this upon myself. Being a proud 30 year experienced solderer (Mil Spec Certified) I chose to solder my bridges shut using a 12W micro pen and Indium (low temp) solder. They looked great and I never had to worry about them effacing when I cleaned the cpu. Then, I mentioned that fact over at the forum on HardOCP and a fellow, experienced with IC fabrication jumped on me (in a nice way) for promoting that method. Apparently, the electrical connection that goes from just beneath those pads to the next layer down is not tolerant of the kind of temperature extremes encountered in soldering, no matter how well and quickly it is done. I believe that set the stage for those interconnects to fracture and the mechanical stress of the wide temperature swings from the peltier experiments was "the last straw". I'll probably never know for sure. I was just grateful as hell that I could overcome the problem by hard coding my L3, L4 and L6 bridges to get me back to 10x. I used conductive paint for those.

There's an old tenet that Experience is the best teacher, but also the most expensive.

Hoot

[pii100]

gotta be the chip or mabey the bios have you flashed the cmos strange does any body know if some of the amd 1.33 chips do work or is it all??

[GOD]

there r rumors around the web that the newer tbird chips r coming out with their multiplier locked.
no matter if u join the L1 bridges that it will not unlock.

GOD...

[Hoot]

There are also rumors that Elvis is still alive. ;D

Hoot