IBM 2194, 6345, 2193 manual Yes, more than once, Dram

Step 2	Did the system unit beep after it was turned on?
			There is a problem with the system unit. Find the
	Yes, more than once
			error code or message in the section “Error codes
			and messages” on page 10-17 and take the action
			listed.
			Note: If the beep is a single long beep followed by
			two short beeps, a video error has occurred and the
			BIOS cannot initialize the video screen to display
			additional information.
			If the beep is a repeating single long beep, there’s a
			problem with the dynamic random access memory
			(DRAM).
			– If you just added hardware and the computer
		No
			will not start, you might have a hardware
			problem. Remove the new hardware and restart
			the computer to see if the problem is corrected.
			If the problem is corrected, you might have
			installed the new hardware incorrectly. Reinstall
			your hardware.
			For instructions on installing hardware in the
			system unit, see “Working with the hardware in
			the system unit” on page 8-3. For instructions
			on installing options on the system board, see
			“Chapter 9. Adding and replacing system board
			components” on page 9-1.
			– If you did not just install new hardware or the
			computer appears to start normally, go to Step
			3.

Diagnosing and recovering from problems 10-3