Compaq Compaq Evo Desktop manual Control Panel Computer Setup, See the Hardware Reference Guide

Troubleshooting Without Diagnostics

Solving General Problems (Continued)

Problem	Cause	Solution
Computer date and	RTC (real-time clock)	First, reset the date and time under
time display is	battery may need to be	Control Panel (Computer Setup
incorrect.	replaced. Battery life is	can also be used to update the
	approximately 3–5 years.	RTC date and time). If the problem
		persists, replace the RTC battery.
		See the Hardware Reference Guide
		for instructions on installing a new
		battery, or contact your Compaq
		authorized dealer or reseller for RTC
		battery replacement.

Computer powered off automatically and the Power LED is:

1.Flashing Red or Yellow four times per second, OR

2.Flashing Red or Yellow two times one second apart, followed by a two second pause, OR

3.Not flashing.

The unit temperature was exceeded. A fan may be blocked or not turning.

OR the heatsink is not properly attached to the processor.

1.Unit is in an exceedingly hot environment. Let it cool down.

2.Ensure computer air vents are not blocked and internal fans are running (such as the power supply fan, chassis fan, and/or the processor fan).

3.Ensure heatsink is properly seated.

4.Contact Compaq authorized reseller or service provider.

The unit temperature was	Replace cover or access panel, and
exceeded because the	let the computer cool down before
computer was functioning	attempting to turn on power to the
with the cover or access	computer.
panel removed.

Air Baffle (if required) is not installed properly to redirect air flow over processor.

Reseat Air Baffle per instructions in the Hardware Reference Guide.

Processor or system fan	Contact a Compaq authorized
has failed.	service provider to replace the
	processor or system fan.

2–4 Troubleshooting Guide