I have Googled it and tried just about everything I have read.... They all say that if I am getting beeps on the post (even without video) that means the mobo is fine and it has to be something else... When I boot it up I get no video and three long beeps. the sticker inside says that it has AmiBIOS but their code beeps don't list a 3 long beep.... It's that Amptron mobo I posted about in the other thread (P4-920LSD). I've tried: 1. Memory - used the eraser trick, re-seated it, used compatible (test good) replacements. 2. video - tried 3 different (working & compatible cards All AGP) 3. processor - re-seated it - everything works fine - did the heat test by removing the heatsink and fan to see if its getting power...which it is.... 4. visual inspection - none of the capacitors on the mobo are blown or in the PSU... I don't have a tester for PSU's... 5. CMOS - I have used the jumper to reset it and removed the battery and tried it that way... All of these things and I still get the 3 long beeps.... Any ideas? I am stumped on it.... unless the issueis some wierd random thing uder another part causing a short somewhere....but I can't tell...
http://www.pcguide.com/ts/x/sys/beep/amiB3-c.html edit, also this may help http://www.computerhope.com/beep.htm this is where I got the 64k mem info for AmiBIOS
may be blown/undervoltage on one of the PSU rails. we had a similar problem with a dell the other day. replaced everything, ended up being the psu. it got whatever the hell it needed to try and boot, just not 100% of what it needed
I was leaning towards the PSU because it has two fans in it and one works and the other doesn't.... I just didn't want to go out and spend money all over the place without having a a plan of attack (ie the most likely issue first) And I did that hans - but thank you...I forgot to list that..
I've got an old Dell GX280 at work doing the same thing - 3 beeps, no POST. I'm going to reseat all the components and test the PSU, but otherwise it's going in the trash. You should pick up a multimeter and test the PSU, those are cheap and handy to have around: Amazon.com: Digital Multimeter Tester: Home Improvement
