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gavingt
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« on: December 21, 2009, 07:45:25 PM » |
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So I've fixed numerous 360s with 3 red rings, but this time is different - as soon as I turn it on, the fans spin for a second and then stop, and the system instantly shows 3 red rings. I know that this isn't typical of a system with bad solder, so I'm wondering what I might be doing wrong.
I should note that I'm fixing it for a friend, and I don't have his power supply. The 203-watt brick I have works, but it fits awfully tight into the back of the mobo and doesn't click like it should. Could the problem be that I need the actual power supply that came with the system?
I wish I could get a secondary error code, but it looks like I melted the sync button! Oops! Any way around that?
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« Last Edit: December 21, 2009, 07:47:10 PM by gavingt »
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Arakon
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« Reply #1 on: December 21, 2009, 07:47:06 PM » |
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No, the 203W PSU works on any model.
Sounds to me like you have a short under one of the chips, or a completely broken connection.
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I do NOT give support by email, PM, ICQ or whatever. Anyone annoying me that way will have his balls removed. With a rusty butterknife. Slowly. And I'll enjoy doing it.
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gavingt
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« Reply #2 on: December 21, 2009, 07:48:02 PM » |
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No, the 203W PSU works on any model.
Sounds to me like you have a short under one of the chips, or a completely broken connection.
Thanks for the speedy reply. When you say broken connection, do you mean a solder connection? Would it be worth it to try heat gunning again? |
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Arakon
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« Reply #3 on: December 21, 2009, 07:52:26 PM » |
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you can try, but chances are it'S beyond recovery.. especially if you have solder blobs that ran together under one of the chips.
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I do NOT give support by email, PM, ICQ or whatever. Anyone annoying me that way will have his balls removed. With a rusty butterknife. Slowly. And I'll enjoy doing it.
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iLLNESS
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« Reply #4 on: December 22, 2009, 05:28:31 PM » |
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when it gives rrod instantly, isnt that a good indication that its a power problem?
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ReverseAffect
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« Reply #5 on: December 22, 2009, 07:05:43 PM » |
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well can be a cap (dry= is almost dead. dead=getting about 1/4 of the supplied voltage to it) or shorting (look for any bulging splits on top) or a resistor opening up(or missing) if you can, slowly go over the bottom of the board from the GPU going back in-between the southbridge and ana/hana chips for missing parts and on top . hard to say if you said the fans shut down within seconds...still sounds like a solderball uncoupled itself from the GPU....can you see any of the solderballs under the ends of the gpu? there's enough room for you to have a look. also any small warps or to in that area.......sounds like a lot..but what the hell it's all visual right....lol
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sick like a mofo..not reballing for a while...
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littlestevie360
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« Reply #6 on: December 22, 2009, 09:14:12 PM » |
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if the sync button was melted there are quite a few other things that possibly went wrong. personally i think that this unit would most likely be too far gone for repair
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jelle2503
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« Reply #7 on: December 23, 2009, 11:40:40 AM » |
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how long at which temp did you heatgun?
if the sync button melted, you're doing it wrong.. durrrr
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juggler73
Newbie
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« Reply #8 on: December 23, 2009, 09:46:49 PM » |
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thats the same as one of my boards i had to fix, didnt turn on, fans for a second, 3 lights, it was 0003 error bad gpu/cpu reflow, you could try and reflow again or you could try and get gpu/cpu reballed if you can. or keep the board for spares as i did..
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