Shuttle
AB45 (i845E) Mainboard
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This is the smallest board on this chipset, but it also provides the most scanty
set of features. Accessories: - Package of a standard design;
-
Documentation: user manual in English;
- Cables: 1 ATA66/100/133
and FDD;
- Bracket with a Bass/Center connector;
- CD
containing:
- drivers;
- user guide in PDF;
-
Adobe Acrobat Reader;
- DirectX 8.1.
No surprise that the layout is so convenient even though the board is narrower
than usual - controllers and their connectors are a rare thing here. It's not
difficult to reach jumpers when the board is already installed. Their functions
are shown on the textolite. The 3-channel switching voltage regulator
incorporates 11 capacitors of 3300 uF. The following controllers are
integrated: - audio controller based on the chipset's capabilities
and Avance Logic ALC650 AC'97 codec supporting 5.1 audio systems and having connectors
for front audio inputs/outputs and for SPDIF;
Non-unsoldered connectors:
switches for setting a FSB frequencies. The system monitoring is supported
by the ITE IT8712F-A chip. What is controlled: - processor voltage,
memory, 1.8, +3.3, +5 and +-12 V, VBAT and +5 V Standby
- speed of 3 fans;
-
temperatures of the processor (a built-in sensor) and the board (a built-in sensor).
There
are 2 connectors for adjustable and 1 for unadjustable connection of fans.
Brief characteristics of the board: memory slots - 2 DDR SDRAM; expansion
slots - AGP/ 5 PCI; I/O ports - 2 COM/ LPT/ 2 PS/2/ 6 USB 2.0; dimensions - 305x190
mm. Adjustment can be carried out with:
jumpers and switches |
Jumper to clear up the CMOS |
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Jumper for write protection of the Flash EEPROM |
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BIOS based on the Phoenix AwardBIOS 6.00PG |
Setup of memory timings |
+ |
CAS Latency, Active To Precharge Delay, RAS to CAS Delay, RAS
Precharge |
Setup of memory frequency |
+ |
Auto, DDR200, DDR266 |
Setup of AGP bus |
- |
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Setup of PCI bus |
- |
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Changeable scaler of AGP and PCI buses |
- |
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Manual assignment of interrupts |
+ |
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Changeable FSB frequency |
+ |
100-165 MHz in 1MHz steps |
Changeable CPU multiplier |
+ |
x8-x50 |
Changeable core voltage |
- |
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Changeable memory voltage |
- |
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Changeable chipset voltage |
- |
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Changeable AGP bus voltage |
- |
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We used the BIOS ab45s012 as the latest available version. This
is a good choice for a relatively cheap upgrade or assembling an entry-level computer.
At the same time, a user gets nothing except the specified features, i.e. no real
overclocking. Test results:
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