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| Q800 ray gun noise |
Posted by: kokorozashi on 2008-11-09 15:57:38
My Q800 periodically makes a noise like a kid trying to sound like a ray gun.
Pyooooooooooo!
Pyooooooooooo!
Pyooooooooooo!
I have a sense of what this probably is, but I don't want to bias you, except to say I bet some component is trying to tell me it wants to die.
Ideas?
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Posted by: Bunsen on 2008-11-09 20:40:21
Sounds like a cap is periodically discharging to me. Perhaps there's a short, or a near-short which gets bridged when the voltage is high enough?
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Posted by: kokorozashi on 2012-12-17 19:25:24
That sounds like a good guess, but I can't say for sure.
I was worried it was something in the power supply.
It turned out to be something in one of the two internal SCSI hard drives, both of which were non-functional anyway.
I feel like I dodged a bullet. Replacing the power supply would have been a pain.
I pulled both drives and replaced them with one I ordered from We Love Macs. It boots.
The new drive was cheaper than the ACARD ARS-2000SUP adapter box I was considering, but I still wonder if I should have gotten the adapter.
The drive probably won't last as long as the adapter, and I had forgotten just how loud those old SCSI drives were. Wow.
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Posted by: CelGen on 2012-12-18 19:41:13
Yeah, I was about to say I've heard some really south hard drives make that noise. The four that I pulled out of a sun server made me feel like I was in a sci-fi movie when the box was running.
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Posted by: Arkku on 2013-02-08 15:39:03
My Q800 starts to make the same noise if I use the pass-through electric outlet to power an external SCSI drive. If I use the same drive connected to a wall outlet with its own power cord, the noise goes away… So I would guess something inside the power supply is to blame.
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