I've heard of peripherals "killing" or hurting computers. ADB devices, not properly connected, or re-connected while the computer is on, can damage a logic board - or so I'm told.
So, when my KVM switch started misbehaving on the ADB function (it never worked properly with video), I stopped using it.
But my question now is... can the damage go the other way 'round? Can a computer damage its peripherals?
yes. Certain interfaces, such as ADB and some SCSI versions are NOT ment to be hot pluggable. By plugging in or unplugging such a device with power applied (system booted) you risk electrical arcing - which can fry the interface on either or both the system or peripheral.
I ask this because I recently swapped some memory, and the monitor off the logic board's video port went out. I hooked up another monitor to that port, and it isn't working right, either....
Is this possible? Or just coincidence?
Monitors are mostly hot plugable. The problem is that Macs are picky! +/- VRAM issues, they either turn off the video if the monitor isn't detected upon boot, or they end up at an incompatible refresh rate if things aren't hooked up correctly. Depends on the model Mac and the actual make/model monitor involved. Very frustrating!
Try the usual suspects: Zap PRAM, Reseat VRAM, Reset CUDA, Reset motherboard, etc.
(Sometimes it seems that the most amazing coincidences in life happen when computers fail.... I never did forgive QuicKeys for a hard drive going out: after all, I installed the program, fiddled with it for a day or two, had some trouble, and the - whammo! - the hard drive went! But that doesn't really make sense, now, does it?)
Inasmuch as I hate QuicKeys, sure it makes perfect sense! Try KeyQuencer. :)
- Dan.
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