Alarm, error and system messages 13.3 BIOS beep codes
13.3BIOS beep codes
The following section lists the POST codes relevant to users in the sequence in which they occur: Contact Customer Support for all other POST codes.
Hex | Meaning | Description | Remedy |
code of |
|
|
|
the beep |
|
|
|
codes |
|
|
|
16H | TP_CHECKSUM | BIOS checksum test | Service event |
28H | TP_SIZE_RAM | Determine DRAM size | Replace memory modules |
2AH | TP_ZERO_BASE | Set base RAM 64KB to 0 | Replace memory modules |
2CH | TP_ADDR_TEST | Check address busses | Replace memory modules |
2EH | TP_BASERAML | BaseRam Low | Replace memory modules |
30H | TP_BASERAMH | BaseRam High | Replace memory modules |
38H | TP_SYS_SHADOW | BIOS is copied to DRAM | Replace memory modules |
3AH | TP_CACHE_AUTO | Determine CPU cache | Exchange CPU |
22H | Test keyboard controller | Check if keyboard is connected or | |
|
|
| defective |
3CH | TP_ADV_CS_CONFIG | Configure the advanced | Test by switching off the hardware |
|
| chipset | components in Setup |
49H | TP_PCI_INIT | Initialize the PCI interface | Test by switching off the hardware |
|
|
| components in Setup or removing |
|
|
| installed expansion modules from |
|
|
| the bus module |
55H | TP_USB_INIT | Activation of the USB | Removal of USB devices |
|
| hardware |
|
4AH | TP_VIDEO | Initialize the video interface |
|
5CH | TP_MEMORY_TEST | Test of the system memory | Replace memory modules |
60H | TP_EXT_MEMORY | Test of the complete | Replace memory modules |
|
| memory |
|
62H | TP_EXT_ADDR | Test of the address busses | Replace memory modules |
90H | TP_FDISK | Initialization and test of the | Disconnect hard disk, replace if |
|
| hard disk hardware | necessary |
95H | TP_CD | Initialization and test of the | Disconnect CD ROM, replace if |
|
| CD hardware | necessary |
98H | TP_ROM_SCAN | Search for BIOS | Test by switching off the hardware |
|
| expansions | components in Setup or removing |
|
|
| installed expansion modules from |
|
|
| the bus module |
BCH | TP_PARITY | Test of the memory | Replace memory modules |
|
| modules |
|
00H |
| BIOS Power On Self Test |
|
|
| completed. Loading |
|
|
| operating system |
|
SIMATIC Panel PC 877 | |
Operating instructions, Release 07/2006, |
