HW-2001
No POST, 3 short beeps on power-on
Dell OptiPlex 7090 · Reception desk
Fans spin, power LED solid, no display output. AMI BIOS.
field observations
- AMI 3-beep code = base 64K memory failure
- Single DIMM installed in slot A2
- Unit was moved across the office yesterday
1 · suspected component
2 · first action (diagnostic cycle)