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HX520: Is it faulty?


Koyoti

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Hi all,

I bought an HX520 about a month ago as part of a new PC build.

When I put it all together I referred to the diagram of the 12v rails on this forum and set it up as follows

 

Rail 1 - ATX mobo and EPS

Rail 2 - 2 x WD 2500KS 250Gb SATA hard drives and 2x120mm and 1x200mm Antec tricool fans, all running at low speed, that came with my case (an Antec nine hundred)

Rail 3 - X1900GT PCI-E graphics and a Samsung SATA DVD/RW

 

However, using this setup, every time I powered up my PC it ran for about 3-4secs then powered down, paused for about 2 secs and then powered back up again. This continued for as long as I left it to do so.

As soon as I moved the fans to rail 3 , however, everything has started to work ok.

 

So my question is, have I got a faulty power supply or is it telling me I haven't balanced the load properly and doing what it is supposed to do?:confused:

 

Any comments or suggestions as to the cause would be greatly appreciated.

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Hi all,

I bought an HX520 about a month ago as part of a new PC build.

When I put it all together I referred to the diagram of the 12v rails on this forum and set it up as follows

 

Rail 1 - ATX mobo and EPS

Rail 2 - 2 x WD 2500KS 250Gb SATA hard drives and 2x120mm and 1x200mm Antec tricool fans, all running at low speed, that came with my case (an Antec nine hundred)

Rail 3 - X1900GT PCI-E graphics and a Samsung SATA DVD/RW

 

However, using this setup, every time I powered up my PC it ran for about 3-4secs then powered down, paused for about 2 secs and then powered back up again. This continued for as long as I left it to do so.

As soon as I moved the fans to rail 3 , however, everything has started to work ok.

 

So my question is, have I got a faulty power supply or is it telling me I haven't balanced the load properly and doing what it is supposed to do?:confused:

 

Any comments or suggestions as to the cause would be greatly appreciated.

 

That sounds like a loose connector. There's not a significant draw from the fans, in fact, they can't really draw enough amps to even cause a minor issue. My theory is that one of the connectors was shorting out and causing

the PSU to short and restart itself.

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