Problem: System will not boot. Keyboard LEDs light up when initial power provided to system, then does not function after that point. Nothing appears on monitor; monitor is good, works with other systems. Floppy boot not possible since boot process doesn't get that far. Fans work. Hear a couple of beeps, maybe 3, then nothing. Before posting, I have already isolated modem PCI card, USB add-on PCI card (for built-in USB ports in chassis front), CD-RW, DVD, floppy, HD, & stick of RAM with no change in system response. Any assistance is appreciated. Please advise also if similar topic exists for this HP product. Thanks! Thank you!!

Three beeps is bad. This may be of some interest to you: http://www.computerhope.com/beep.htm Always looking for techs: http://www.protonic.com/volunteer.php?PHPSESSID=25e06d90d2153c5e0b49d9c798c3024d

Thanks fordman! Good link. Will investigage further & compare beeps. In reviewing other trbls in this forum, I found another link on PSU tsting (http://www.ochardware.com/articles/psuvolt/psuvolt2.html) that I'll try too. A lot of good info in this forum. I'll report back what I find, probably tomorrow sometime. Thank you!!

Hi all, Here are the preliminary results of my power tests, using Fluke multimeter. I was only able to get volt measurements. Wasn't able to get any Amps. With the jumper in place, the PSU kept shutting down when I inserted the leads, using 10A & Common on Fluke. The milliAmp option didn't provide any readings & the PSU didn't shut down either. What are your thoughts? Thanks! +++++++++ FYI: PSU Specs - Type: Bestec PSU/Model #: ATX-1956D (Output Rating 200W Max) Wire Info - Red: +5V/23A Orange: +3.3V/10A Yellow: +12V/12A Black: Ground Purple: +5VSB/2A Gray: Power Good (?) Blue: -12V/0.8A +++++++++ P1 (MB Pwr Connection) Top Row (1-10) 1 - 3.3 2 - 11.873 3&4 - jumper positions (Floppy LED on & PSU fan on) 5 - Grnd 6 - Grnd 7 - Grnd 8 - Empty 9 - 5.09 10 - 5.09 Bottom Row (1-10) 1 - 3.3 2 - 3.3 3 - Grnd 4 - 5.090 5 - Grnd 6 - 5.090 7 - Grnd 8 - 4.994 9 - 5.011 10 - 11.928 P1 Amps Red - ? (No continuity) Yellow - ? (Continuity Exists) Orange - ? Purple - ? Blue - ? *** P2 Red - 5.154v/? A Yellow - 11.624v/? A *** P3 Red - 5.154v/? A Yellow - 11.624v/? A *** P4 Red - 5.154v/? A Yellow - 11.624v/? A *** P5 Red - 5.154v/? A Yellow - 11.624v/? A Thank you!!

Hi all, I purchased a new PSU today. After connecting only MB, HDD, & floppy, I turned new PSU on and MB did not boot. Situation still the same. Any other additional thoughts? Also, I'm not getting any POST beeps. I hear a soft click, maybe HDD or CPU activity? However, it's pretty quiet now. Thank you!!

In addition, MB seems to be routing power. The CPU fan is operational as well as the secondary case fan. Could this be a CMOS battery trouble? Thank you!!