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First boot problem: My Psu(Antec HCG 750M) is making a really loud noise! Please help!

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  • Antec
  • Boot
  • Components
Last response: in Components
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July 31, 2014 7:23:54 PM

It kind of sounds like the fan's hitting something all the time? The system is working fine and I have my bios up(Not really sure what to look at though). Sometimes the noise changes a bit, like it'll change tone or something. What's wrong?

More about : boot problem psu antec hcg 750m making loud noise

July 31, 2014 7:54:06 PM

Okay so I found out that the fans are hitting this piece of plastic on the inside of the case. It's this thing connected to the right side(looks like a pin connection on a mobo) and there's a little tab off of that piece that keeps getting hit. How do I fix this? :/ 
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July 31, 2014 7:54:21 PM

I'd turn everything off and make sure it is screwed it tightly and all the cables are plugged in securely
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July 31, 2014 7:54:51 PM

If it sounds like your PSU fan is hitting something, it probably is. Take a close look, might want a flashlight, and see if it's anything visible. Rotate and up-end it and listen for anything rattling around. If you don't see or hear anything, it's possible the fan motor is crapped out.

Is it new? If not, how old is it?
Have you done any work in your case recently? Missing any screws?
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July 31, 2014 7:56:10 PM

The Jasmine Dragon said:
Okay so I found out that the fans are hitting this piece of plastic on the inside of the case. It's this thing connected to the right side(looks like a pin connection on a mobo) and there's a little tab off of that piece that keeps getting hit. How do I fix this? :/ 


What kind of case is it? Might help if you can post a picture.
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July 31, 2014 8:00:53 PM

The case is a Corsair 400r. The PSU is in place and very snug when screwed into the case. The PSU is new as well as all the other components. I built everything today. I can try posting a picture of the obstruction but it's kind of hard to see with the grating and lighting situation at the moment. It's basically a little tab from one of the black plastic connectors. It won't move out of the way when I push down on it. It moves momentarily but it pops up again.
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July 31, 2014 8:03:39 PM

It's a bad fan \ bearing , RMA it.
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July 31, 2014 8:19:18 PM

The Jasmine Dragon said:
The case is a Corsair 400r. The PSU is in place and very snug when screwed into the case. The PSU is new as well as all the other components. I built everything today. I can try posting a picture of the obstruction but it's kind of hard to see with the grating and lighting situation at the moment. It's basically a little tab from one of the black plastic connectors. It won't move out of the way when I push down on it. It moves momentarily but it pops up again.


What is the black plastic connector attached to? Is it something connecting to the PSU or is it something attached to the case only? Sorry - I'm trying to visualize it.
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July 31, 2014 8:23:09 PM

Are you talking about one of the securing tabs for one of the wires that run from your front panel to the mobo? If so, I've got an easy fix for you - pull your PSU and flip it so the fan is down. (It just occurred to me that your fan is probably facing up in order to hit something on or near your mobo.)

Edit: Just read your description again. When you said case, I was assuming you meant the PC case. If you're talking about something on the inside of the PSU case, then yes indeed, RMA it.
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July 31, 2014 8:28:21 PM

Hi, RMA the PSU, you could fix it easily, but you would void the warranty. So simply RMA it. The plastic sheet and or the fans cable got too loose during transport and are in the way of the fan blades I assume.

http://support.antec.com
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July 31, 2014 8:32:41 PM

antec support said:
Hi, RMA the PSU, you could fix it easily, but you would void the warranty. So simply RMA it. The plastic sheet and or the fans cable got too loose during transport and are in the way of the fan blades I assume.

http://support.antec.com


Alright.. We already sent in the upc code for a mail-in rebate. Will we still be able to RMA it? If not then how would I go about fixing it?

@volcanoscout: It's a connector inside of the psu just under the fan. It was angled when they tried to connect it or something and rises up a bit too much so it has a little piece that snags on the underside of the blades.
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July 31, 2014 8:34:32 PM

I'm sure Antec will still allow the RMA.

Never try to fix a PSU yourself.
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July 31, 2014 8:34:46 PM

The Jasmine Dragon said:
antec support said:
Hi, RMA the PSU, you could fix it easily, but you would void the warranty. So simply RMA it. The plastic sheet and or the fans cable got too loose during transport and are in the way of the fan blades I assume.

http://support.antec.com


Alright.. We already sent in the upc code for a mail-in rebate. Will we still be able to RMA it? If not then how would I go about fixing it?

@volcanoscout: It's a connector inside of the psu just under the fan. It was angled when they tried to connect it or something and rises up a bit too much so it has a little piece that snags on the underside of the blades.


I think I figured it out about the time you were typing this post. See my edit in my last post.
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August 1, 2014 2:50:15 AM

Hi, I suppose, but that is our USA office's decision. I just do tech support in forums not the RMA handling :-)
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!