is the old q6600 or athlon/phen x4 too power hungry for a 300w system?

[ExoMale]

still got my viglen genie flat but full height card support case, seemed too good to just chuck out and only worth like a fiver, currently next to my chair supporting a short extension lead used for my computer ha and feel like building a pc inside it so i can then sell on for a few quid and just to fiddle in the process, so obviously i need to spend the least on internals best i can, but while trying to make it appealing and worth while lol.

the 300w unit is an 80 plus bronze fsb SFX which has no gpu connector and in no interest to buy a silverstone model i was after before going back to towers, but it ran my current system just fine with 3 hard drives at the time however unless i could find a cheap 1156 board and get an i3 550 or similar i3 ive seen for under £15, im thinking of buying another one of those range of quads again, but the last 6600 ran with a 350w psu and a 8600gt and think it was the lower powered version of the quad, but as i want to upgrade my 750 i was thinking of using that and my 750gb hard drive, found a board and q6600 no ram or cooler for £30 which i guess is okay, but the board supports 8gb of either ddr2 or ddr3 ram which is a plus, i just dont want to waste time scouring for parts that would be no use.

 

[ExoMale]

Thanks for reply, oh yeah I know all power supplies are not equal and this isn't my first fsp, however the last ones were for basic office like computers I upgrade and had no quads or powerful stuff in it and while this is an 80 plus bronze I have now I don't want to be too optimistic lol.

I wouldn't play around with any voltage and 105w is the max I would want from a processor not matter if it's quad or not, I just don't want no APU system where I could get away with say 150w and if I had that from any Intel or other amd I would only be able to get a gpu something like an hd 5450 or gt 210 or something else that's dx11 and under 30w and htpc like build is not what i want, but owning the gtx 750(yeah that's what I meant in the beginning sorry) which is an OC version(makes no difference to power) makes it a free option and a push to upgrading for my own computer.

Without buying new or something more recent used, I might be better off with the i3 from 1156 socket if I can find a board, same core/thread count/power as my haswell i3, but a lot cheaper because it's older.


The power supply is a dual rail, v1 = 14a v2 = 16a, the 3.3&5 says = 103w and according to another site the dual rail is 200w, my i3 and 750 is like 110w combined then I had 750gb, 2 x 1tb and a DVD drive, so I probably wasn't even near the limit as I had no issues what so ever, so thinking about it I don't even know if over 80w of cpu will work nevermind over 100.