HP 8200 A2W54UT#ABA, 6200 Pro H3D90USABA manual Solving Hardware Installation Problems 291

Computer will not start.

Cause	Solution
Wrong memory modules were used in the upgrade or	1.	Review the documentation that came with the system to
memory modules were installed in the wrong location.		determine if you are using the correct memory modules
		and to verify the proper installation.
		NOTE: DIMM1 or XMM1 must always be installed. On
		all computers expect the USDT, DIMM1 must be installed
		before DIMM2, and DIMM3 must be installed before
		DIMM4.
	2.	Observe the beeps and LED lights on the front of the
		computer. Beeps and flashing LEDs are codes for specific
		problems.
	3.	If you still cannot resolve the issue, contact Customer
		Support.

Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.)

Cause	Solution
Memory is installed incorrectly or is bad.	CAUTION: To avoid damage to the DIMMs or the system
	board, you must unplug the computer power cord before
	attempting to reseat, install, or remove a DIMM module.
	1.	Reseat DIMMs. Power on the system.
	2.	Replace DIMMs one at a time to isolate the faulty
		module.
		NOTE: DIMM1 or XMM1 must always be installed. On
		all computers expect the USDT, DIMM1 must be installed
		before DIMM2, and DIMM3 must be installed before
		DIMM4
	3.	Replace third-party memory with HP memory.
	4.	Replace the system board.

Solving Hardware Installation Problems 291