PSU not enough?! Tags: New Build Systems Product Last response: December 31, 2010 2:41 PM in Systems Share Awall440 December 31, 2010 1:53:35 AM Hi all, I just recently received a Phenom II x4 955 along with an ASRock 870 Extreme3 and a HIS 6850. I had a PSU if 550w and is an Antec Neo (though it is 4-5 years old). But I decided to use it anyway figuring it should be enough. It has 3 12v rails with 18 amps per. Is that too low? I got everything set but the system wouldnt boot. I then unplugged the 6850 and tossed in my old gts 250. Comp booted up like a champ. So, my question is, is my PSU the issue? If so, what should I be looking at? I am looking to get the following: Thanks for your replies. My apologies if the link didn't take. More about : psu omnisome December 31, 2010 2:36:15 AM About 400W and 35A is all that's needed for that setup. Your Antec PSU should be enough. m 0 l joelmartinez December 31, 2010 2:46:58 AM Maybe it's going anyway the psu you posted antec ea650w is the current best deal in power supplies m 0 l Related resources Antec 630W 80+ PSU enough for Fx 8320 and r9 270x? - Forum Is 550W PSU enough for R9 270X with 4GB VRAM? - Forum Will this 400w PSU be enough? - Forum Is the PSU enough? - Forum Is my PSU strong enough to run 2 GTX 770's in SLI?! - Forum Can't find your answer ? Ask ! Get the answer ko888 December 31, 2010 3:24:56 AM Your Antec NeoPower 550 is more than sufficient to power your system. When you say "the system wouldnt boot" are you saying the system is dead? If it does power on, does it show any BIOS POST screens? If you do see BIOS POST screens, does it boot into Windows Safe Mode or do you even see the Windows splash screen? If you do then it's probably just a graphics card driver problem. m 0 l Awall440 December 31, 2010 10:14:40 AM I am actually on the PC right now. I have installed windows 7, a couple games, etc. But when I toss in the 6850, nothing. It's like there is no power there. m 0 l Awall440 December 31, 2010 1:09:11 PM I am also wondering if the video card is DOA? m 0 l zooted December 31, 2010 2:23:55 PM ^That is possible, considering it works fine when you put the 250 in there. It will be enough power for the 6850, the two cards should have similar power usage. m 0 l Awall440 December 31, 2010 2:41:31 PM At least I can still RMA it. =/ Guess I will try a couple more ideas and if they still don't work, I'll RMA. m 0 l Can't find your answer ? Ask ! Publish Related resources Solvedis my psu enough? Forum SolvedWill 500 psu be enough Forum SolvedIs this PSU enough? Forum SolvedPSU powerful enough? Forum Solved600W PSU enough? 11,7V at 12V rails Forum SolvedWill My PSU Be Enough For This Build? Forum SolvedPSU enough for this? Forum SolvedIs 500 watt psu enough? Forum SolvedIs a 600 Watt PSU enough for my gaming build? Or should I go higher? Forum SolvedGood enough PSU for the parts? Forum SolvedIs My PSU Good Enough for the R9 290? Forum SolvedIs the Corsair CS550M psu good enough for my new gaming rig? Please help... Forum SolvedIs this psu enough Forum SolvedPSU enough power? Forum SolvedIs a 600w psu enough? Forum More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !