🚀 go-pugleaf

David Longley <David@longley.demon.co.uk> wrote:

>The VL+ "Hippo" board made by OCTEK (Ocean) produces the following sequence
>of tones on boot up:
>
>Low--High--High--High--Low--Low  Al are long tones with gaps. 

If you have a MrBios on your M/B, these might help, from the
comp.sys.ibm.pc.hardware.* FAQ

Depending on the reported code, it looks like either Memory Bank 0 Data Bus
Failure or 8259 (Port 20/A0) Interrupt Address Error

:POST Code 1A Beep Codes
low high, low high low high high	- Real Time Clock is Not Updating
 
:POST Code 03 Beep Codes
low high, low low low			- ROM BIOS Checksum Test
 
:POST Code 04 Beep Codes
low high, high low low			- Page Register Test (Ports 81-8F)
 
:POST Code 05 Beep Codes
low high, low high low			- 8042 Keyboard Controller Selftest
 
:POST Code 07 Beep Codes
low high, high high low			- Memory Refresh Circuit Test
 
:POST Code 08 Beep Codes
low high, low low high			- Master (16bit) DMA Controller
					  Failure
low high, high low high			- Slave (8 bit) DMA Controller
					  Failure
 
:Post Code 0A Beep Codes
low high, low low low low		- Memory Bank 0 Pattern Test
Failure
low high, high low low low		- Memory Bank 0 Parity Circuitry
					  Failure
low high, low high low low		- Memory Bank 0 Parity Error
low high, high high low low		- Memory Bank 0 Data Bus Failure
low high, low low high low		- Memory Bank 0 Address Bus Failure
low high, high low high low		- Memory Bank 0 Block Access Read
					  Failure
low high, low high high low		- Memory Bank 0 Block Access
					  Read/Write Failure
 
:POST Code 0B Beep Codes
low high, high high high low		- Master 8259 (Port 21 ) Failure
low high, low low low high		- Slave 8259 (Port A1) Failure
 
:POST Code 0C Beep Codes
low high, high low low high		- Master 8259 (Port 20) Interrupt
					  Address Error
low high, low high low high		- Slave 8259 (Port A0) Interrupt
					  Address Error
low high, high high low low		- 8259 (Port 20/A0) Interrupt
					  Address Error
low high, low low high high		- Master 8259 (Port 20) Stuck
					  Intercept Error
low high, high low high high		- Slave 8259 (Port A0) Stuck
					  Intercept Error
low high, low high high high		- System Timer 8254 CH0/IRQ0
					  Interrupt Failure
 
:POST Code 0D Beep Codes
low high, high high high high		- 8254 Channel 0 Test and
					  Initialization
 
:POST Code 0E Beep Codes
low high, low low low low high		- 8254 Channel-2 (Speaker) Failure
low high, high low low low high		- 8254 OUT2 (Speaker Detect)
Failure
 
:POST Code 0F Beep Codes
low high, low high low low high		- CMOS RAM Read/Write Test Failure
low high, high high low low high	- RTC Periodic Interrupt / IRQ8
					  Failure
 
:POST Code 10 Beep Codes
low high, low low high low high		- Video Initialization and
					  (Cold-Boot) Signon Message
 
:POST Code 12 Beep Codes
low high, high low high low high	- Keyboard Controller Failure
 
:POST Code 17 Beep Codes
low high, low low low high high		- A20 Test Failure Due to 8042
					  Timeout
low high, high low low high high	- A20 Gate Stuck in Disabled State
 
:POST Code 19 Beep Codes
low high, low high high low high	- Memory Parity Error
low high, high high high low high	- IO Channel Error


-- 
andy@troas.demon.co.uk
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