Even tho there really is no way of telling how much wattage this card eats away while being overclocked i am pretty sure that it is your PSU and your current system settup.
Me and courage both got dramatic results when switching to a higher psu, i know it sounds silly thats what courage said until he tried it and BOOM he got the amazing score's he is sitting at right now which are insaine by the way courage GOOD JOB MAN **** is crazzy, besides that point
and ramako all systems are different so you might find better or worse results from us even if you meet the the same specs as us, just depends, ive realized that my mobo eats nothing compared to the rest of yorus, since my mobo is a micro mobo and is tiny as hell in my gigantic black widow from thermal take. that might also be the problem, who knows.
you should try doing things different like me and courage took 2 different ways to reach our scores his being benching his scores and mine testing the scores out on every different game i have using CMD, which took twice as long i am sure but i bet i still havent reached my max scores but i believe the difference between our scores aren't worth all the trouble of those annoying trial and errors until i finally get a stable score i can live with.
but without me rambling on about me and courage's awesome scores you should also try keeping your CPU at stock speeds while overclocking your GPU that seemed to be my down fault when i was trying to overclock my gpu with my ****y diablo tek 550 watt psu, and then my buddy needed a 800 watt for his 6900 series gpu and gave me his mastercooler 650 watt for FREE HELL YEA. lol and i could finally reach my scores while my cpu was overclocked to 3.5 with my 7850 BE with the mutiplyer at 17.5 and 50+ watt increase. then when i tested and tested to get my scores i realized that my old psu was the down fall of everything i had problems with and when i suggested it to courage he said the same thing your saying until he tried it and BOOM there are his amazing scores right in front of you,
so i suggest going to best buy and buying a 600+ psu and just trying it out for a couple of days and see if you see it helping you out, and if it works then take the psu back and get your money back, Then go to newegg or Tiger direct (i suggest tiger because of there deals and cheap ass pricess and easy and quick shipping based of countless experiences from them i give the 5 stars) and get a 600 watt psu or higher and be done with the pains that come from crashing your pc over and over again!
i also recomend you making sure that you did the pencil mod correctly because i did it wrong the first time and i saw a little bit of increase but not near as much as i am seeing today! and make sure your getting enough direct air flow to your gpu not just air arround it i mean DIRECT AIR FLOW on the back of the card. get a small fan and try to jerry rigg it to blow right on it.
i wish the best of luck to you but like i said all pc's are different and you might not see the same results as me and courage have ive seen some awesome scores but i take it me and courage are the only ones to get these types of scores without artifacts and stability. only because we are persistent as **** and well i am poor as **** dont know about him but this card was only 15 bucks for me and even that put me back lol didnt have smokes for a week lol
also courage i am having problems with my acutally ddr2 ram, there suppose to be clocked at 660 and 800 mhz but my 1gb is clocked at 333 mhz and my 2gb is clocked at 440 mhz and i am clueless to what to overclock and ive looked and looked for tuts but i cant find any. do you think you could help me out overclocking them and setting the correct parramiters without frying my precious hard ware that i cant afford to replace right now considering im getting a new mobo and gpu but keeping my ram and cpu. just private message me if you could please i would appreciate the help very much soo i just want to get all the speed i can get out of my rigg before i upgrade it to see weather or not i should spend the money.
HELLS YEAH 5670 this card is a beast and i would have bought this card for full price if i knew what it could do!
scores currently at 1020/1220 100% fan and 3d in CCC set to high quality.