For 1000 dollars, I think I'd be glad that the manufacturer placed a limit. Knowing me, I'd over do it and fry my thousand dollar investment. A BIOS switch is an intriguing option though. Those that want to risk it, can. But the second you use that switch, warranty is void.
Same here, I accidentally destroyed a couple of expensive Opterons trying to de-lid them using a cheap push-out razor blade instead of a quality exacto blade. Some people spending a fortune on these can just go nuts in their "enthusiasm" over these cards, saying "OMG, OMG, I gotta push it further.. OMG, I can't get enough out of it!! OMG!!!"
:biggrin:
It looks like NV wants to try to control overclocking, like Intel did with the locked SB's and IB's (while offering more expensive "K" unlocked versions). Maybe NV is gonna do a beefier version of Titan, with all 2880sp unlocked a few months later on, while also allowing for much higher voltage?
But there are some quirks being reported like strange downclocking in some instances. It could be a glitch associated with power draw? Perhaps there's something on the board like certain VRM circuitry that gets too hot, causing slight throttling even when the card is running cool? It has happened with Fermi and GK104s, so this is not new to Titan.
Perhaps NV is going to allow custom-designed PCBs to have higher voltages?
I would think that NV does not have full "Quality" confidence that their Titan cards are designed to last at least 3 years when overclocked and overvolted past 1.2V, running 24/7. I think that NV is extremely serious about their own "Quality" status for the professional market that is consistently growing.
Or - it could just be for control of granularity of the GPU hierarchy at certain performance point segments.... there have been too many instances of just THAT ever since the Geforce 2 Ultra was the first video card to hit $500. Perhaps NV is not sure if they will do Titan "Ultra" (with unlocked shaders) yet, or not.. deciding to just limit Titan for now?
Ya know, I'm surprised that NV held GTX 680 back with limited voltage threshold for so long - nearly 1 year before releasing Titan. There was nothing in between. NV didn't even try to one-up 7970GHz by doing "680 Ultra" with higher clocks/voltage. It's pretty strange how the 690 was the only other choice all that time..
It's probably all about the sales. If there were not enough demand for 680, with the high prices, then NV would've probably done 680 Ultra. I guess NV was content with the limited 28nm supply selling well for a high price, so as long as there was satisfactory business, complacency kicked in... until Titan came just at the right time when 680 sales started falling. Of course, NV wanted Titan to have enough thunder - if 680 Ultra was already around, then Titan would've been a lackluster 30-35% faster, having a harder time at prying $1000 from the wallet's death grip.
Argh, business!
