I'm completely stuck and could really use some help. Here are the specs:
Albatron K8X890 Pro Socket 939
AMD Athlon 64 3200
1GB (2 x 512MB) 184-Pin DDR 400 (PC 3200)
I installed a used modem in my computer and after about 15 minutes of trying to get it to work, the signal to the monitor was lost and I smelled burnt rubber in the room. The first thing I thought of was the power supply had gone out -- but hopefully didn't take anything along with it.
I removed all peripherals, SATA hard drives and anything in the IDE slots before starting to diagnose.
I replaced the power supply and power cord. Still no signal the monitor and a single, long beep from the motherboard when powered on.
I replaced the motherboard next, with the exact same model. Still no signal and same long beep.
Next I replaced the CPU, this time upgrading to an Athlon 64 3400. Still no signal and same long beep. Replaced the RAM. No signal and still a single beep. Sent back the CPU and ordered an Athlon 64 3500, but still no signal and same beep.
I'm lost at this point because it's practically a new system and yet still no signal. Where can I look next for the cause of this? Any tips on diagnosing better?