Hi, I'd appreciate any help possible please. I'm having difficulty figuring out which component is faulty.
System is as follows:
Athlon X2 4200+ CPU
Asus A8N5X Motherboard. Phoenix Award BIOS.
2x Corsair ValueRAM 1024mb dual channel
200gb SATA HDD
Enermax 485w PSU
Radeon x1900xtx graphics. (also have a Radeon x300 I bought to try and troubleshoot)
Problem: When I switch the power on the system beeps 4 times in a 1-1-1...1 pattern. No signal to monitor. All fans spin, HDD, power and motherboard LEDs light up.
I don't have access to any spare parts other than the other videocard listed, and the DVD ROM and IDE HDD on this, my old, computer. This is what makes it most difficult. (This system is using PC133 RAM, Athlon XP 1800+ processor, and a power supply that's inadequate for a modern PC)
I already RMAed the motherboard and they sent it back, saying it tested as fine.
Questions I could use answered:
1. What's the minimum hardware I can have connected to the motherboard to see a display on the monitor?
2. More specifically, should a computer function even minimally with no RAM?
3. If a computer cannot function at all with no RAM, would the error be different if the RAM was broken compared with it being absent? The error is the same either way.
4. If the CPU is broken would the computer still beep?
5. Is it likely/possible for it to be the power supply? I'm wondering if the cable to power the CPU was faulty for example, would the motherboard still get as far as beeping?
The tech support at the online shop I purchased this system from wants me to RMA the RAM, but I want to be certain somehow that it is the RAM. Either that or I'll RMA as much of the system as I can and let them sort it out.
I'm quite lost, first time building from scratch. Any further recommendations would be appreciated.