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post #1 of 13
Thread Starter 
Hey, I'm new to OC.net and I just built my first build a couple weeks ago.
Now I have a few questions for you veterans.

1.I have a 550w Corsair PSU and I heard that the card I'm using has a nice energy conservation rate, and I'd love to buy another one and run it in crossfire.

I have the HD 5770 1GB, would my power supply handle this?

2. My computer won't even start up windows unless I take the side panel off first, after I do that and the windows loading screen appears, I can put it back on with no issues. Any suggestions?
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post #2 of 13
Welcome!

Im by no means a veteran but i think i can help.

1 you can easily run 2 5770s in crossfire with your psu, especially with your cpu. corsair is really high quality, so 550w is enough (650w corsair is enough to cfx 5850s barely and easily 5830s, so your fine...)

2 your probably shorting something out when you put on your case. does it come in contact with anything other than the rest of the case?
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post #3 of 13
Welcome aboard and that 550w you have might be able to do the job but it's cutting it a little too close (even for a Corsair). Here's what I found on Tom's hardware:

"The general rule of thumb is a high quality 500 to 550 watt power supply with sufficient current (amps) on the +12 volt rail(s) can easily power a system with any single video card made. A high quality 700 to 750 watt power supply with sufficient current on the +12 volt rail(s) can easily power a system with two video cards operating in dual mode. There are some exceptions such as the new ATI Radeon HD 5XXX series of energy efficient cards which require a little less power."

I usually get a bigger PSU than I need but that's just me though. lol

As for your second question, you have a short somewhere in your case. Check to make sure all stand-offs are there and you're not missing any screws or anything.
Edited by reaper~ - 6/9/10 at 8:23pm
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post #4 of 13
im pretty sure that a 550w will cut it for now, but with your next upgrade to anything, you should also get a better psu..

http://www.overclock.net/power-suppl...e-2x5770s.html
Edited by maxhudson - 6/9/10 at 8:20pm
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post #5 of 13
Thread Starter 
Quote:
Originally Posted by maxhudson View Post
Welcome!

Im by no means a veteran but i think i can help.

1 you can easily run 2 5770s in crossfire with your psu, especially with your cpu. corsair is really high quality, so 550w is enough (650w corsair is enough to cfx 5850s barely and easily 5830s, so your fine...)

2 your probably shorting something out when you put on your case. does it come in contact with anything other than the rest of the case?
Well my side panel comes in contact with some male molex connectors I think they're called coming off the PSU, should I move all cables away from the PSU and Side panel? I can post pictures.

Thanks for the response!

Quote:
Originally Posted by reaper~ View Post
Welcome aboard and that 550w you have might be able to do the job but it's cutting it a little too close (even for a Corsair). Here's what I found on Tom's hardware:

"The general rule of thumb is a high quality 500 to 550 watt power supply with sufficient current (amps) on the +12 volt rail(s) can easily power a system with any single video card made. A high quality 700 to 750 watt power supply with sufficient current on the +12 volt rail(s) can easily power a system with two video cards operating in dual mode. There are some exceptions such as the new ATI Radeon HD 5XXX series of energy efficient cards which require a little less power."

I usually get a bigger PSU than I need but that's just me though. lol

As for your second question, you have a short somewhere in your case. Check to make sure all stand-offs are there and you're not missing any screws or anything.
I was thinking about getting a better PSU in the future, but I'll try to crossfire another card when I get it. I appreciate your response

Quote:
Originally Posted by maxhudson View Post
im pretty sure that a 550w will cut it for now, but with your next upgrade to anything, you should also get a better psu..

http://www.overclock.net/power-suppl...e-2x5770s.html
Yeah, I agree.
I'm also getting an i7 extreme edition soon, so a new psu will be necessary.
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post #6 of 13
yes.

dont let cable ends come in contact with any part of the case. they are being shorted out

thats why the computer works when you take off the case. its not touching any cable ends
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post #7 of 13
Thread Starter 
Quote:
Originally Posted by maxhudson View Post
yes.

dont let cable ends come in contact with any part of the case. they are being shorted out

thats why the computer works when you take off the case. its not touching any cable ends
I just got home, so I opened up my computer, and my 24-pin motherboard connector didn't seem firmly seated, so I firmly seated it, I also got some of the standoffs that I wasn't using out of the case as well, and I don't have any cables touching the side panel of the case, so now I booted it up with the side panel on, and boom! Works just fine.

Thank you all for your help and support!

And I already like it here.
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post #8 of 13
Thread Starter 
Sorry to bump this, but it still doesn't do it! Should I take EVERYTHING out and rewire EVERYTHING?

edit: I'll try to rewire everything I guess.
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post #9 of 13
well you shouldnt rewire everything if its working fine as it is.

you might consider it when you get something new for your computer, but as long as its working fine now, and your not doing anything inside your case you dont need to rewire for any reason..
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post #10 of 13
Thread Starter 
Quote:
Originally Posted by maxhudson View Post
well you shouldnt rewire everything if its working fine as it is.

you might consider it when you get something new for your computer, but as long as its working fine now, and your not doing anything inside your case you dont need to rewire for any reason..
I rewired everything just because I was bored, and that seemed to fix it, my standoffs were like, loose-ish.

And so I rescrewed my standoffs in, then put the motherboard in, and put everything else in, and I put some extra effort into cable management:



What do you guys think of that cable management?

After rewiring everything, it booted up just great with the side panel on.
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