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Thread: My HX620 is dead (I think)....

  1. #1
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    My HX620 is dead (I think)....

    After building my new PC, I thought I'd try a bit of overclocking. Everything seemed OK until I dropped the CPU's multiplier from 9x to 8x and upped the FSB to about 420, when it booted into Windows OK but then shut-down after a few seconds of running Orthos.

    At first I thought the problem was with the CPU or mobo, but I tested with a new CPU and the problem still existed. It's possible the problem is with the mobo, but when I tested the PSU outputs with a multi-meter I only got a 2.97V output, with all the others being 0V.

    I remember hearing what might have been a pop when the system shut-down, which might be a fuse blowing (if indeed the HX 620 has fuses ?). I am now RMA'ing for a replacement.

    My question is - what could cause the PSU to blow a fuse and fail given that upping the FSB to 420 should not have caused the HX 620 any problems ?

    Because I'm not sure exactly what caused the problem, I am also RMA'ing the mobo in case there is some problem with that.

  2. #2
    Lover & Fighter Blitzen's Avatar
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    • Blitzen's system
      • Motherboard:
      • ABIT iX38 QuadGT
      • CPU:
      • Intel Quad Q6600 @ 3.6Ghz : 30 Degrees Idle - 41-46 Degrees Load
      • Memory:
      • 4 x 1GB OCZ Platinum PC6400 @ 4-4-4-12
      • Storage:
      • 2 x 500GB Samsung Spinpoints - RAID 0
      • Graphics card(s):
      • GTX 285
      • PSU:
      • Enermax MODU 82+ 625W
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      • Operating System:
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    I somehow seriously doubt that pop was your PSU.......
    More likely something on the mobo imho.....

    The actual power its trying to dish out wouldnt change hardly at all so an overclock certainly wont kill a PSU...not even an 'El Cheapo' one, let alone a Corsair.

  3. #3
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    That's what I was thinking, but checking with a multi-meter gives my previously reported results. I understand the load can affect the readings, and a MM doesn't provide load, but should I be getting those readings from the PSU ?

    I'm still interested as to whether the Corsair uses fuses though as, while it is a good PSU according to all the tests done by various review sites, a top notch PSU would simply reduce the output when overloaded, rather than rely on a fuse (this obviously costs more to implement than a fuse). The only limiting factor then would be heat caused by the overload.

    Unfortunately, I don't have any spare parts (or PC) I can use for testing - I ended up buying a new E6300 from PCWorld specifically to test if my CPU was buggered (only to take it back a few hours later for a refund when it proved my CPU was not at fault ).

  4. #4
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    • amjedm's system
      • Motherboard:
      • Asus A8N-Sli Premium
      • CPU:
      • Athlon X2 4200 S939 + Scythe Ninja rev A
      • Memory:
      • 2GB Corsair DDR PC3200
      • Storage:
      • Samsung T 160GB Sata in Scythe Quiet Box
      • Graphics card(s):
      • Nvidia 6600 256MB + Cooling Mod
      • PSU:
      • Enermax Noisetaker 485 (fanless) - lower chamber P180 fan doing the PSU cooling
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    Why don't you post in the Hexus Help section to ask if anyone lives near you so you can try out the psu in their system?

  5. #5
    Pedandic mo-fo IAmATeaf's Avatar
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    • IAmATeaf's system
      • Motherboard:
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      • Q6600@3.25
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      • 4 x 2GB Corsair 6400C5DHX XMS2
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      • 2 x 0.5TB 7200.12, 2 x 1.5TB 7200.11
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    A PSU would normally have a fuse on the 240 input, if that blew the PSU wouldn't even come on. Also modern PSUs won't even normally start up if they detect no load, not sure why this is but may be related to PFC which attempts to balance the load between the various rails.

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