![background image](http://html.mh-extra.com/html/thunder/1-10/1-10_addendum_1113397001.webp)
Thunder i7500 S2720 Addendum
1) Beep Code Information
2) Pin-out for NIC four pin headers J53 & J55
Beep Codes
Below are definitions of Beep Codes not mentioned in the User’s Manual:
Beep codes that are used by AMIBIOS:
Number of Beeps
Description
1
Memory refresh timer error
2
Parity error
3
Main memory read / write test error
4
Motherboard timer not operational
5
Processor error
6
Keyboard controller BAT test error
7
General exception error
8
Display memory error
9
ROM checksum error
10
CMOS shutdown register read/write error
11
Cache memory bad