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Pastimes : Dream Machine ( Build your own PC )

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To: Doug Soon who wrote (13488)	7/16/2002 1:24:05 PM
From: Robert Graham	Read Replies (1) of 14778

Yesterday I found out there is an apparent incompatibility with the new TDK VeloCD and the LG DVD drive on the same channel. Nero has a utility that can create a test CD and then read the CD to test for data and sync errors. I ended up getting data errors and multiple sync errors with the TDK drive. The LG drive ended up with a perfect score. I checked settings and even replaced the ribbon cable to get the same results with the TDK drive. I purchased yet another new CD-R/RW drive for shits and giggles, this time the TEAC CD-R/RW drive from CompUSA. There is a "no questions asked" two week return policy from CompUSA. Well, guess what? The TEAC drive runs the test CD with no data errors or sync errors. This is absurd. First, it was problems with the memory. Next the video card. Next the motherboard. Now the TDK CD-R/RW drive. Coincidence? Power supply? Or that rectifier on the motherboard? Or the UPS? Or this time simple incompatibility problems between the TDK and the LG drives? I think at least part of the problem has pointed to the quality of power the devices are receiving. The other part of my problems had been driver related. And I cannot rule out poor quality hardware, at least in the case of the generic memory. I have replaced the power supply and the motherboard, which also means I am operating with a new rectifier. I hope this has prevented any future problems. If one more provable hardware problem crops up, I will begin to suspect the UPS permitting poor quality power to pass to the motherboard and other devices. This would be bad news and potentially very costly. In the case of permitting high frequency noise to pass to the components, the damage may not show up as problems until much later in time. Fortunately, this type of problem although possible is not probable. Even though I have an older UPS, it is a unit by APC. It has survived through several years here in Tucson, which is noted its lightening storms. When I get a chance I will see if the problem disappears when I place the CD drives on separate channels. Am I getting paranoid? ;-) Bob Graham

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