Solved PSU Rosewill Hive 550w Bronze won't activate

Rosewill Rosewill hive series 550w 80 pl...
January 25, 2014 at 19:57:54
Specs: Windows 8.1
I just built my first PC yesterday. It was working absolutely fine before I installed my Fractal Design Define Mini fan control with a molex cable. It wouldn't turn on so I removed it and it worked. Then I switched it back off, but now it won't work at all. Was it short-circuited?

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✔ Best Answer
January 26, 2014 at 23:06:41
Oh, you mean you may have zapped the motherboard with static? Yeah, that could have messed it up.

But if possible swap in another power supply and see if it starts up then.



#1
January 25, 2014 at 22:04:00
So this 'Fractal Design Define Mini fan control with a molex cable' is a case fan--it doesn't involve plugging anything into a port or slot?

Either something went wrong while you were inside the case--knocked something loose or didn't reconnect something--or yeah, a short may be involved that ruined the power supply. It doesn't seem likely but your description of what happened makes that possible. Are you sure everything else is OK with it?


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#2
January 25, 2014 at 22:10:10
Everything should be fine. I was extra careful when inserting the parts of the molex cable that goes into the psu and the header on the motherboard. I don't know what could have caused a shortage, but the switch was definitely off on the psu. Would it make a difference if it was switched off?

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#3
January 26, 2014 at 00:15:24
I couldn't find a specific description of that item. It seems this fractal design place makes a lot of stuff so I'm kind of flying blind trying to figure out what the problem might be. Do you have a link to that specific item?

But it doesn't seem like it would need to be connected to both the (fan?) motherboard headers and a molex from the PSU.


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#4
January 26, 2014 at 11:10:51
Are you asking about this thing? >> http://www.bit-tech.net/hardware/co...

http://www.fractal-design.com/home/...

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#5
January 26, 2014 at 14:39:00
No, it's a fan control that comes with the case and goes on the back.

On the right >>> http://www.bing.com/images/search?q...

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#6
January 26, 2014 at 16:41:08
Just did the paper clip test and it isn't a problem with the psu. Could it be a problem with the motherboard? Could I have possibly discharged it? Or could it be problem with the power switch cable from the case that goes into the motherboard? I bought a warranty for the motherboard for accidental damage.

I'm just going to re-connect everything...

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#7
January 26, 2014 at 18:14:31
It may be a motherboard problem. How can I be sure?

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#8
January 26, 2014 at 20:46:36
By 'on the right' do you mean that thing in the plastic bag that looks like it fits in a card-slot cover? I'm guessing it's some kind of thermostat that turns a fan on or off as it sees necessary? Yeah it's probably best to remove it since it's not something you need.

If your computer still doesn't work--and everything is connected right--the best thing to do would be to swap in a known-working compatible power supply and see if it boots up. It doesn't seem like there should be a problem with either the motherboard or power supply given that the device seems to be innocuous.

Edit You mention the 'power swtich cable'. Why do you suspect that? You can always remove the 2-wire pigtail for the start button from the motherboard and momentarily short those 2 pins with a screwdriver tip to see if it starts. Also, motherboards don't 'discharge' in that they don't need to hold a charge in order to start up.

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#9
January 26, 2014 at 21:53:04
Yes, it's the one that fits into a card slot cover. I removed it to see if it was the problem, but I still had no response.

I did 'remove the 2-wire pigtail for the start button from the motherboard and momentarily short those 2 pins with a screwdriver tip to see if it started'. There was no response.

And I mean that I either discharged myself on the motherboard or it just happened to stop working once I put the fan control in.


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#10
January 26, 2014 at 23:06:41
✔ Best Answer
Oh, you mean you may have zapped the motherboard with static? Yeah, that could have messed it up.

But if possible swap in another power supply and see if it starts up then.


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#11
January 27, 2014 at 02:47:12
Tried it with a friend's psu and nothing happened... Looks like a motherboard replacement is in the abyss.

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#12
January 27, 2014 at 09:49:13
Yeah, it sounds like the motherboard. But just to make sure (do this with the power cord disconnected) you might want to temporarily disconnect all the drives, remove any add-on cards and unplug any USB devices, just leaving the cpu and ram installed. Then see if it starts up. If so then one of the disconnected items is likely at fault.

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#13
January 27, 2014 at 16:45:32
I did that at the instruction of my psu troubleshooting manual and it still seems to be the motherboard.

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#14
January 27, 2014 at 20:03:03
That seems most likely then. I hope a new one fixes everything.

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#15
February 5, 2014 at 17:02:34
Replacement mobo fixed the issue!

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#16
February 5, 2014 at 21:15:51
That's great! Thanks for letting us know.

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