HP D310v Quick Setup & Getting Started Guide - Page 26

Getting Started Diagnostic Keyboard LEDs, Front Panel LEDs and Audible Codes The following table describes the keyboard and front panel LED codes as well as the audible codes that may occur during Power On Self Test (POST) that do not necessarily have an error code or text message associated with them. ✎ If your system is equipped with a Universal Serial Bus (USB) keyboard, you may hear the beep sequences for some of the keyboard light error codes, but you may not see the flashing keyboard lights. Diagnostic Keyboard LEDS, Front Panel LEDs and Audible Codes Activity Beeps Probable Cause Recommended Action Audible 1L, 3S* System ROM is corrupted; system is running in Failsafe Boot Block mode. Reflash the ROM using a ROMPaq diskette. Flashing Caps Lock 1L, 2S* LED on Keyboard. Graphics controller not present or incorrectly initialized. 1. Clear CMOS. 2. If graphics card has been added, remove and reseat. Flashing Num Lock 1S, 2L* LED on keyboard (on select models.) System memory not present. 1. Check memory module (see the relevant section of the Hardware Reference Guide). 2. Remove and reseat memory module. Ä CAUTION: Some models support ECC memory and non-ECC memory. Other models support only non-ECC memory. For those systems that do support ECC memory, Compaq does not support mixing ECC and non-ECC memory. In addition, the system will not boot the operating system. *L = Long, S = Short 2-14 Quick Setup & Getting Started Guide