I ran a computer with a hard drive(5watts) with a 85 watt power supply. It got unhappy when I accessed the floppy so I can assume I was on the edge CSS -----Original Message----- From: Stephen Inkpen [mailto:sinkpen@ROADRUNNER.NF.NET] Sent: Sunday, February 07, 1999 11:13 AM To: PICLIST@MITVMA.MIT.EDU Subject: [OT] Power requirements of a mainboard and CPU I am sorry about posting this question to this group but it is the one I will find the right anwser. What are the estimated power requirements of a mainboard/motherboard without expansion cards and a single pentium chip running at 100Mhz. Stephen Inkpen sinkpen@roadrunner.nf.net