Sound card advice.
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From: Sjouke Burry on 1 Apr 2010 19:18 Grrrr!!!!! Never connect two soundcards on two computers, lineout-->linein. One computer was connected to a 2 instead of 3pole mains outlet. Both soundcards permanently disabled.......... One of them on the motherboard.
From: Ken on 2 Apr 2010 01:17 On Fri, 02 Apr 2010 01:18:23 +0200, Sjouke Burry <burrynulnulfour(a)ppllaanneett.nnll> wrote: > Grrrr!!!!! > Never connect two soundcards on two computers, lineout-->linein. > One computer was connected to a 2 instead of 3pole mains outlet. > > Both soundcards permanently disabled.......... > One of them on the motherboard. http://www.epanorama.net/documents/pc/ungrounded_pc.html
From: Adrian C on 2 Apr 2010 07:16 On 02/04/2010 06:17, Ken wrote: > On Fri, 02 Apr 2010 01:18:23 +0200, Sjouke Burry > <burrynulnulfour(a)ppllaanneett.nnll> wrote: > >> Grrrr!!!!! >> Never connect two soundcards on two computers, lineout-->linein. >> One computer was connected to a 2 instead of 3pole mains outlet. >> >> Both soundcards permanently disabled.......... >> One of them on the motherboard. > > http://www.epanorama.net/documents/pc/ungrounded_pc.html > Same advice valid when connecting PCs to video equipment, especially older television sets. Most of my AV stuff terminates to a couple of TiVo PVRs, also connected to the phone line and ethernet. These Series1 units previously 2-core connected are now both strapped to mains earth. Before I did that, it was not a nice AC 50Hz hum that was distributed around the house telephone wiring! -- Adrian C
From: Sjouke Burry on 2 Apr 2010 07:35 Adrian C wrote: > On 02/04/2010 06:17, Ken wrote: >> On Fri, 02 Apr 2010 01:18:23 +0200, Sjouke Burry >> <burrynulnulfour(a)ppllaanneett.nnll> wrote: >> >>> Grrrr!!!!! >>> Never connect two soundcards on two computers, lineout-->linein. >>> One computer was connected to a 2 instead of 3pole mains outlet. >>> >>> Both soundcards permanently disabled.......... >>> One of them on the motherboard. >> http://www.epanorama.net/documents/pc/ungrounded_pc.html >> > > Same advice valid when connecting PCs to video equipment, especially > older television sets. Most of my AV stuff terminates to a couple of > TiVo PVRs, also connected to the phone line and ethernet. These Series1 > units previously 2-core connected are now both strapped to mains earth. > Before I did that, it was not a nice AC 50Hz hum that was distributed > around the house telephone wiring! > Just replaced one soundcard, and six outlets, 30 years ago I put an extra ground wire in each pipe, am glad I did that. One card to go, I only had a few ISA cards, the last comp is PCI only((broken)card integrated on MB).
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