Acer AC100 User Manual

Chapter 8 97
Bootblock recovery code checkpoints
The Bootblock recovery code gets control when the BIOS determines that a BIOS recovery needs to occur
because the user has forced the update or the BIOS checksum is corrupt. The following table describes the
type of checkpoints that may occur during the Bootblock recovery portion of the BIOS:
POST code checkpoints
The POST code checkpoints are the largest set of checkpoints during the BIOS pre-boot process. The
following table describes the type of checkpoints that may occur during the POST portion of the BIOS:
Checkpoint Description
E0 Initialize the floppy controller in the super I/O. Some interrupt vectors are initialized.
DMA controller is initialized. 8259 interrupt controller is initialized. L1 cache is
enabled.
E9 Set up floppy controller and data. Attempt to read from floppy.
EA Enable ATAPI hardware. Attempt to read from ARMD and ATAPI CDROM.
EB Disable ATAPI hardware. Jump back to checkpoint E9.
EF Read error occurred on media. Jump back to checkpoint EB.
E9 no EA Determine information about root directory of recovery media.
F0 Search for pre-defined recovery file name in root directory.
F1 Recovery file not found.
F2 Start reading FAT table and analyze FAT to find the clusters occupied by the recovery
file.
F3 Start reading the recovery file cluster by cluster.
F5 Disable L1 cache.
FA Check the validity of the recovery file configuration to the current configuration of the
flash part.
FB Make flash write enabled through chipset and OEM specific method. Detect proper
flash part. Verify that the found flash part size equals the recovery file size.
F4 The recovery file size does not equal the found flash part size.
FC Erase the flash part.
FD Program the flash part.
FF The flash has been updated successfully. Make flash write disabled. Disable ATAPI
hardware. Restore CPUID value back into register. Give control to F000 ROM at
F000:FFF0h.
Checkpoint Description
03 Disable NMI, Parity, video for EGA, and DMA controllers. Initialize BIOS, POST,
Runtime data area. Also initialize BIOS modules on POST entry and GPNV area.
Initialized CMOS as mentioned in the Kernel Variable "wCMOSFlags."
04 Check CMOS diagnostic byte to determine if battery power is OK and CMOS
checksum is OK. Verify CMOS checksum manually by reading storage area. If the
CMOS checksum is bad, update CMOS with power-on default values and clear
passwords. Initialize status register A.
Initializes data variables that are based on CMOS setup questions. Initializes both
the 8259 compatible PICs in the system.
05 Initializes the interrupt controlling hardware (generally PIC) and interrupt vector table.
06 Do R/W test to CH-2 count reg. Initialize CH-0 as system timer. Install the
POSTINT1Ch handler. Enable IRQ-0 in PIC for system timer interrupt.
Traps INT1Ch vector to "POSTINT1ChHandlerBlock."

Acer AC100 Specifications

General

Tcase	69.1 °C
Bus type	DMI
FSB Parity	No
Processor cache	3 MB
Processor cores	2
Processor model	i3-2120
System bus rate	5 GT/s
Processor family	Intel® Core™ i3
Processor series	Intel Core i3-2100 Desktop Series
Processor socket	LGA 1155 (Socket H2)
Processor threads	4
Processor codename	Sandy Bridge
Execute Disable Bit	Yes
Motherboard chipset	Intel® C206
Processor frequency	3.3 GHz
Processor cache type	Smart Cache
Processor lithography	32 nm
Processor manufacturer	Intel
Processor package size	37.5 x 37.5 mm
Processor front side bus	- MHz
Processor operating modes	64-bit
Supported instruction sets	AVX
Thermal Design Power (TDP)	65 W
Number of processors installed	1
CPU multiplier (bus/core ratio)	33
Maximum number of PCI Express lanes	16
Memory types supported by processor	DDR3 1066/1333
Memory channels supported by processor	Dual
Memory bandwidth supported by processor (max)	21 GB/s
Maximum internal memory supported by processor	32 GB
HDD size	3.5 \
HDD speed	7200 RPM
RAID levels	0, 1, 5
HDD interface	Serial ATA II
Total storage capacity	2000 GB
Maximum storage capacity	- TB
Internal memory	4 GB
Memory clock speed	1333 MHz
Internal memory type	DDR3-SDRAM
Maximum internal memory	16 GB
Graphics card	HD Graphics 2000
Cabling technology	10/100/1000Base-T(X)
PS/2 ports quantity	0
USB 2.0 ports quantity	6
PCI Express slots version	2.0
Power supply	200 W
Redundant power supply (RPS) support	-
Cables included	AC
Compatible operating systems	Windows Small Business Server, Microsoft Windows Server, Red Hat Enterprise Server, SuSE Linux Enterprise Server
Sustainability certificates	ENERGY STAR
Certification	FCC B, CE, CB, UL
Chassis type	Tower
Processor ARK ID	53426
Intel Identity Protection Technology version	1.00
On-board graphics card ID	0x102
On-board graphics card model	Intel® HD Graphics 2000
On-board graphics card family	Intel® HD Graphics
On-board graphics card base frequency	850 MHz
On-board graphics card dynamic frequency (max)	1100 MHz

Weight and Dimensions

Width	- mm