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Brand New XH850 Failing Paperclip Test


slinki

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So as the title suggests. Brand new HX850 right out of the box. Failed the paperclip test. And by failed I mean it powered up and made a click sound and instantaneously turned itself off (fan stopped spinning).

 

Is this normal???

 

 

Thanks in advance for any help!

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Hi thanks for the reply. No nothing is connected to the PSU when I was doing the paperclip test. But the Corsair guide doesnt state that anything else should be connected. I also tried it plugged into my motherboard, both the 8 pin and 24 pin were plugged in, and still the same issue. My main problem is that I have a board that wont boot, and I am trying to eliminate the problem.
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Ok guys didnt try fans as I do not have any fans that are handy to plug into the molex connectors. I did however plug in a hard drive. Exact same problem. Surely there is enough 'load' in a hard drive? Thinking I may have to send this PSU back as faulty!
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Just tried plugging in another PSU I loaned from a friend. All I plugged in to the board was the 24 pin and the 8 pin power connectors, and the psu did NOT turn off when I hit the power switch on the board. My old HX850 also doesnt turn off under the same conditions. This new HX850 however, when I plug in the 24 pin and 8 pin, just like the other 2 PSUs, it instantaneously turns off!
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  • Corsair Employees

Okay so I am not clear on something. are you saying that you get the same behavior on all of the PSU? Or are you saying the system works fine with the other two PSU but not the new PSU?

 

I get the part of it not working with the paper clip test but it seems to turn on when connected to the MB but shuts off right away.

So am I understanding it so far?

If so that may suggest there is a shot somewhere on the MB and I would make sure the paper clip you use is metallic and not coated; if its not it will not power on the PSU.

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Or are you saying the system works fine with the other two PSU but not the new PSU?

Well the system doesn't work 'fine' as it wont boot. But the new PSU turns off right away, wheras the other two remain on.

I git the part of it not working with the paper clip test but it seems to turn on when connected to the MB but shuts off right away.

So am I understanding it so far?

It shuts off right away with the paperclip test AND connected to the MB. Only difference is with the paperclip test it shuts off when I turn the switch on the back of the PSU, and with the MB it turns off when I push the button on the MB.

If so that may suggest there is a shot somewhere on the MB and I would make sure the paper clip you use is metallic and not coated; if its not it will not power on the PSU.

If its a problem with the motherboard, how do you explain the other 2 PSUs not having this problem? Yes I understand that a coated paperclip will not conduct electricity - I have it stripped back on both ends.

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Ok everyone, so I have received my brand new Corsair HX850 PSU. I took great care plugging everything in and proceeded to connect both a fan and hard drive to the PSU to give it "load". and tried the paperclip test. I can report this PSU has the EXACT SAME PROBLEM as the previous PSU. Also tried plugging it into the MB to see how that would work. Same problem, just clicks off. Was there a bad batch of these or something? I have to say this is getting very tiring very quickly.
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So I went ahead and ordered the same power supply again, this time from another, very reputable online retailer. Thinking to myself maybe the last retailer had bad stock. I received it today and it also has the identical problem. Just clicks off as soon as its turned on, Doesnt matter how much load or what the circumstances. I will now be out a significant amount RMAing these products. If these products both turn out to be faulty, that will be 3 corsair power supplies in a row that have been faulty with identical problems. If thats the case I can honestly say I will never own another Corsair product as long as I live.
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  • 4 weeks later...

So just wanted to update anyone that is interested. The other power supplies also were confirmed as faulty. That makes FOUR faulty, brand new power supplies. One of the retailers automatically sent me out another new one, which I dont even have the will to open, as Im sure its also DOA. That would make 5.

 

Absolutely shocking quality control somewhere down the line here. If I worked at a management level at Corsair this is something that would definitely give me concern.

 

Anyways, onto another brand for me i'm afraid. Thanks.

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  • Corsair Employees

Is this the HX850 that you list in your specs?

 

That PSU has a fanless mode. The fan only clicks on for a second, but then stays off while still sitting at room temperature.

 

You weren't assuming the PSU was dead simply because the fan wasn't spinning, were you?

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No, I wasn't. Please read through the entire thread.

 

1. A Corsair member of staff has agreed with my findings.

2. The retailers I RMAd the PSUs to have carried out their own checks and found fault.

3. The original instructions I followed to diagnose the PSU, were from Corsairs own website.

 

I do find it entertaining though that you, and not any representative from Corsair, have questioned or pointed out to me about this fanless mode you speak of. Seems that would be the first thing someone would ask me to check!

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  • Corsair Employees
No, I wasn't. Please read through the entire thread.

 

1. A Corsair member of staff has agreed with my findings.

2. The retailers I RMAd the PSUs to have carried out their own checks and found fault.

3. The original instructions I followed to diagnose the PSU, were from Corsairs own website.

 

I do find it entertaining though that you, and not any representative from Corsair, have questioned or pointed out to me about this fanless mode you speak of. Seems that would be the first thing someone would ask me to check!

 

I did read through the thread and still find it hard to believe and mentioned the fanless mode because nobody else did and figured it was worth bringing up.

 

Like Yellowbeard said, it is statistically impossible to have that many dead PSUs in a row. Even if they're bargain basement PSUs.

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