Im not so inclined in the power management area so I have a question.
I am due to swap my XFX 9600GT XXX Edition for a GTX460 tommorow from a work colleague.
Really good swap indeed, he has an alienware that he no longer uses so I was the first to ask for his GPU to squeeze some extra frames out of my games!
I currently have a 400watt PSU, with 22amps on the +12v rail, my 9600gt works fine on it.
(It uses 1x6 pin to 2x molex)
Other hardware I use is an AMD Athlon dual core 2.7GHz processor, 2x 1GB Kingston RAM, 1x 300GB Seagate @ 7200RPM, 1x Optical Drive (which can be unplugged to save on power consumption if it makes any difference) and 1x 120mm fan.
Running on a cardboard box PC (table top, no case).
I have no problems with overheating on my current setup, the GPU rarely exceeds 60 degrees.
I know the reqs for the 460 is 500watts, not sure on +12v amperage, however, would it be safe to underclock the 460 to use less power?
Obviously when installing I will be taking baby steps, ill start by testing the GUI (moving windows aggressively etc.), then dxdiag display tests, then start off with low end games working up to (highest game i play at the mo is MW2) high-spec ones, will be monitoring this throughout.
Would any of the graphics experts here have a rough ratio of working/failure risks?
My guess is probably 6/10, in which case I would be willing to take the risk, however if anybody here is running a GPU with lower power reqs please let me know your horror stories or if it works for you.
This isnt going to be a fixed method, it is to be temporary until I buy a new PSU and case (2-3 weeks)
Edit: I also understand the risks involved when running this at lower power, i.e. instablity, PSU damage and possible collateral damage...but if I ever see symptoms of this, I will be powering down and swapping out immediately!