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 Will the Corsair GS700 PSU 80+ Bronze provide enough power for this build? - Forum Is a 850watt PSU enough to use a Nividia GTX 780 6GB - Forum Is this PSU good enough? - Forum Will a 500w PSU be enough? - Forum Is this PSU enough for my system? - 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 SolvedWill this PSU be enough? Forum SolvedPSU Strong enough? Forum SolvedIs this PSU enough for my computer ? Forum Solvedis 650w psu is enough for sli gtx 670 Forum SolvedIs this PSU enough for a r9 270x? Forum SolvedWill This PSU be enough for the following specs? Forum SolvedIs a 450W PSU enough for this build? Forum SolvedIs this 500 Watt PSU enough for this rig? Forum SolvedWill this PSU be enough and Safe? Forum SolvedPSU good enough? Forum SolvedWill my PSU be enough for a chosen GPU? Forum SolvedPSU not enough for HD 4870? Forum SolvedWill 650w psu be enough ? Forum SolvedIs this PSU enough for a Sapphire R9 270 Dual-X Forum SolvedIs My PSU enough for Gtx 780 Forum More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !