I am getting really annoyed. Mainly at myself, since I cant remember when precisely I started hearing this.
I hear the HDD chatter, the DVD-ROM spin up, and the cordless trackball when I move the mouse cursor. If I hold down a key on my cordless keyboard, I can hear that too, sounds like a very quiet machine gun. At all times there is a wavering high pitched squeal. All this is noticeable at moderate volume levels.
I use a Hercules GTXP for sound. I have a ATI TVWonder tuner card, a generic NIC. GF3 for video, projecting with an LT150. The PC is in a custom enclosure in my attic/crawlspace. The DVD-ROM drive is external to the case on a 36" IDE cable. There is a great mass of black spaghetti strewn all around the PC, coming in from CATV, various peripherals, and going out to the projector, speakers, bass shakers etc. In short, a trouble shooter's nightmare.
Things I have already tried that didn't help:
*Disconnecting ALL peripherals except GTXP, projector and keyboard. The only thing connected to the GTXP rack was the speakers.
*Disconnecting CD-Audio connector from DVD to PCI card
*Disconnecting DVD-ROM from IDE cable, and from power as well.
*Muting all inputs and outputs in sound card driver and windows mixer.
*Connecting a CRT monitor on a short cable instead of the projector.
*Making sure everything (PC, monitor, speaker system) is powered by the same outlet.
*Moving GTXPs PCI card to a slot farther from the GF3.
What did help was plugging the speakers into the on-board sound chip. All noise went away.
This suggests to me that something internal and the GTXP are not getting along. I don't really know what else to try to get rid of the noise. Hopefully somebody here has suggestions?
One further possible clue: I get a 60-cycle hum from the Klipsches when the preamp is in standby mode, in all cases. I had thought plugging the amp into the same outlet as the PC would have gotten rid of it, but it did not.
TIA,
Gerald
I hear the HDD chatter, the DVD-ROM spin up, and the cordless trackball when I move the mouse cursor. If I hold down a key on my cordless keyboard, I can hear that too, sounds like a very quiet machine gun. At all times there is a wavering high pitched squeal. All this is noticeable at moderate volume levels.
I use a Hercules GTXP for sound. I have a ATI TVWonder tuner card, a generic NIC. GF3 for video, projecting with an LT150. The PC is in a custom enclosure in my attic/crawlspace. The DVD-ROM drive is external to the case on a 36" IDE cable. There is a great mass of black spaghetti strewn all around the PC, coming in from CATV, various peripherals, and going out to the projector, speakers, bass shakers etc. In short, a trouble shooter's nightmare.
Things I have already tried that didn't help:
*Disconnecting ALL peripherals except GTXP, projector and keyboard. The only thing connected to the GTXP rack was the speakers.
*Disconnecting CD-Audio connector from DVD to PCI card
*Disconnecting DVD-ROM from IDE cable, and from power as well.
*Muting all inputs and outputs in sound card driver and windows mixer.
*Connecting a CRT monitor on a short cable instead of the projector.
*Making sure everything (PC, monitor, speaker system) is powered by the same outlet.
*Moving GTXPs PCI card to a slot farther from the GF3.
What did help was plugging the speakers into the on-board sound chip. All noise went away.
This suggests to me that something internal and the GTXP are not getting along. I don't really know what else to try to get rid of the noise. Hopefully somebody here has suggestions?
One further possible clue: I get a 60-cycle hum from the Klipsches when the preamp is in standby mode, in all cases. I had thought plugging the amp into the same outlet as the PC would have gotten rid of it, but it did not.
TIA,
Gerald