Quote from: lightfoot on March 27, 2016, 10:30:45 PM

And whatever you do don't crank the heatsink down on the chip or add washers on the top. Doing this will push down on the chip and result in a taco.

And don't run over 250w of power. 275 is FINE!

And always say your prayers before bedtime.

In the meantime I have been fiddling with speeds on re-wired Titans, I can get some of the dies up to 275mhz, but not more than two per board. Still, not bad.

Also figured out what causes the bridge boards to blow, it's the Pi boards on top shorting their little power supplies. When that happens the +5 (unfused of course) shorts dead and the board trace becomes the fuse. You can replace it with wire-wrap wire (or I can) but you really need to also look into buying a new Rpi. Make sure you get the right one, you can test the old one by trying to power it through the mini-usb port with 5v. If it don't come up it's toast.

ive taco'd a few, toasted a few, hell im toasty right now!

in all seriousness though ive been able to push 4 titans on one board up to 250-270 range and keep it stable,
it took a lot of firmware hacking and liquid cooling, but it's totally possible!