ROCKY-3705EV-R2 Socket 370 Celeron
TM
, Pentium III
®
& Tualatin Processor with Ethernet , VGA , Audio Board
71
Hard Disk(s) fail (08)
→
Sector Verify failed.
Keyboard is locked out - Unlock the key.
BIOS detect the keyboard is locked. P17 of keyboard controller is pulled
low.
Keyboard error or no keyboard present.
Cannot initialize the keyboard. Make sure the keyboard is attached
correctly and no keys are being pressed during the boot.
Manufacturing POST loop.
System will repeat POST procedure infinitely while the P15 of keyboard
controller is pull low. This is also used for M/B burn in test.
BIOS ROM checksum error - System halted.
The checksum of ROM address F0000H-FFFFFH is bad.
Memory test fail.
BIOS reports the memory test fail if the onboard memory is tested error.
ROCKY-3705EV-R2 Socket 370 Celeron
TM
, Pentium III
®
& Tualatin Processor with Ethernet , VGA , Audio Board
72
Appendix C.
DMA, IRQ and 1
st
MB Memory
I/O Address Map
DMA Channel Assignments:
DMA Channel # Description
0 Available
1 Available
2
Floppy Disk (8-bit transfer)
3 Available
4
Cascade for DMA controller 1
5 Sound
6 Available
7 Available
IRQ Mapping Chart
IRQ0 System Timer
IRQ8 RTC Clock
IRQ1 Keyboard IRQ9 USB
IRQ2 Cascade to IRQ Controller
IRQ10 LAN1
IRQ3 (COM2) IRQ11 Free
IRQ4 (COM1) IRQ12 PS/2
Mouse
IRQ5 Sound IRQ13 FPU
IRQ6 FDC IRQ14 Primary
IDE
IRQ7 LPT1 IRQ15 Secondary
IDE
Note:
All IRQs have been assigned to the listed devices, so if you want to
add any additional device, you must free the unused IRQ first. For example,
if you don’t use USB K/B or Mouse, then IRQ9 may be set free.