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Originally posted by brjoon1021
1. scanned for viruses, spyware, don't know how to scan for trojans
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You need a dedicated trojan scanner like The Cleaner by Moosoft.
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Originally posted by brjoon1021
2. What about the 4.73v, isn't that way low ?
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Sorry, I didn't see that part of your post. Yes, that's real low and a low 5 volt rail usually causes all sorts of power problems. That low rating isn't caused by having lots of drives installed since the drives use the 12 volt rail. The low rail is due to the power supply itself having a problem. Do you have another power supply you can swap in to test with?
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Originally posted by brjoon1021
like I said, I have four hard disks and the DVD Rom and a CD burner. Is that too many devices ?
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No...even a good quality 300 watt power supply could handle that many drives.
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Originally posted by brjoon1021
Is their a way that they should be connected to the PSU, i.e. an order or so many devices on one power line or... ?
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One rule of thumb is don't use any Y-splitters on the power line feeding the main hard drive. I usually connect the main hard drive to it's own power connector by itself and then connect the other drives with the other power connectors.
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Originally posted by brjoon1021
Also, the power supply manufacturer (Vantec) said that my 9700 AIW video card is really demanding. They sent me a modified power supply to run with my card - a known issue. I am having more problems now. Still way below 5v
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I'm not sure how good the Vantec power supplies are...I tend to use Sparkle Power or Antec power supplies. You may want to consider a Fortron Source power supply as it did really well in a recent comparison review over at Tom's Hardware...provides really clean, stable power.
Have you clocked the system back? Overclocking can cause instability as well as file corruption.
Do you have other RAM you can swap in?

Cricket