Hugh, Do you have a specification detailing the wattage/amperage supply that the PSU should be able to provide on each line If so, then it's worth checking on the various manufacturers sites ( or google for a summary table) too see what the various devices take at startup, and at max load
Then compare that to 75% of the rated loading, - no way should any PSU not give a steady supply at only 75% of it's rating ( not that I'm saying yours is not much better, or that it's not that good - but you never know, and you'll need specialist kit to impose the loading needed to prove a 600 watt supply - Toms Hardware did some tests a while ago, but that's probably part of the reason you chose the supply you got) Also, it may be worth checking the fans with a meter to check for shorts as they spin ( I got a duff fan a long while ago and it was shorting at 1 particular place in its 360 revolution - real fun, because it never stopped at that position, but in those days I had access to a very nice digital oscilloscope - Mainframe engineers toy) JimB ----- Original Message ----- From: "Hugh Gundersen" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Wednesday, March 15, 2006 10:24 PM Subject: Re: Windows XP Boots, but won't do anything! On Wed, 15 Mar 2006 17:59:48 -0000, you wrote: >you got 5 hard drives > 2 x CD/DVD drives, >4 ? fans >whatever is on the USB ports >The P4 >? GB Memory 1.5Gb DDR > >Are you sure that your PSU is providing sufficiently stable power at all >required voltages for those devices at their startup > >I'd guess 20 watts per drive >100 for the CPU, >50? for memory, >20? for the fans >?? Video > >So that's under 300, or 400 with the Video, >but - it's the stability under loading on each voltage/supply line that >needs to be considered > >Try taking out the power supply for a couple of the drives and see if that >makes a difference > Seems stable today but will check and restart 2 or 3 times over the next few days. Sir Hugh of Bognor -- Remember. You may honestly believe that you understood everything you thought I said but what you thought you heard wasn't exactly what I said. [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] -- ---------------------------------------- To unsubscribe, mailto: [EMAIL PROTECTED] Is your picture included in the Official Win-Home List Members Profiles Page? http://www.besteffort.com/winhome/Profiles.html If not, write to: [EMAIL PROTECTED] -- ---------------------------------------- To unsubscribe, mailto: [EMAIL PROTECTED] Is your picture included in the Official Win-Home List Members Profiles Page? http://www.besteffort.com/winhome/Profiles.html If not, write to: [EMAIL PROTECTED]
