СПАСИБО ВАМ ЗА ПОМОЩЬ - ВСЕ ПОЛУЧИЛОСЬ НА МАТЕРИНКЕ

СПАСИБО ВАМ ЗА ПОМОЩЬ - ВСЕ ПОЛУЧИЛОСЬ
НА МАТЕРИНКЕ ЕСТЬ ДЖАМПЕР ОТКЛЮЧАЮЩИЙ НОГУ B21:

Technical specifications
Chipset
Intel 440BX
Format
ATX
Bios Manufacturer
Award
Voltages
2.0V~3.5V
Bus frequencies
66-75-83-100-103-112-133 Mhz
Frequencies multipliers
2x~5.5x
Simm memory Slots
-
Dimm memory Slots
3
PCI Slot
5 (all for full length cards; the last PCI Slot is shared with the first ISA one)
ISA Slot
2 (all for full length cards)
AGP Slot
1
EIDE and I/O Controller
2 EIDE channels; 2 serial; 1 parallel; 2 USB port; PS/2 mouse and keyboard

Package
Instruction manual; driver and software CD-ROM; Pentium II and Celeron processor guide; EIDE and Floppy cables

Construction

6ABX2V is a typical taiwanese motherboard, so it includes the main technical features required by a Slot 1 based on the Intel 440BX chipset, but it isn’t very detailed, particularly in terms of construction; its advantage is obviously the cost. The components are put in the typical way of the Slot 1 motherboard in ATX format, with the expansion Slots in the inferior part of the motherboard, while the Slot 1 and the memory benches are on the upper part. The construction quality is quite good, but worse than that of other products: the memory benches are rather cheap and they difficult support the modules; this is the same for the expansion Slots. Around the CPU there is a number of capacitors, 5 at 1500µF and some others smaller; some other capacitors are put in the critical area of the motherboard such as the PCI and AGP Slots, as well as the memory benches. The ATX power connector is put between the Slot 1 and the USB ports in a position difficult to access when the CPU is installed. While the connectors for the EIDE channels and Floppy are put on the opposite side, next to the memory benches and they are easy to access (they all have plastic inserting guides). The north bridge of the CPU is covered by a green aluminium waster, for a better heat dissipation; on the inferior part of the motherboard there are the connectors for the case LED and buttons, all with clear serigraphs.

The motherboard includes hardware monitoring functions (in the left picture note the sensor for the CPU temperature), which allow to check the CPU temperature (or better the temperature of the area around the CPU Core), the power voltages and the rotation speed of the two tachometric fans (there are three connectors for the tachometric fans, respectively next to the Slot 1, in the middle next to the AGP Slot, and at the bottom behind the last ISA Slot).
There are also some connectors for SB-Link for PCI, WOL (Wake On Lan) audio cards and for the Irda port.
The user’s manual isn’t very good even if it describes in detail the technical features of the motherboard, as well as the settings of the Award BIOS; unfortunately it is difficult to understand it for those who aren’t experienced with a motherboard configuration. In the CD-ROM included there are the drivers for the operating system (Bus Master Intel and patches for Windows 95) as well as a software for hardware monitoring functions for the operating systems.

Bios

Following are the settings for the bios used with the motherboards during the tests: they refer to the bus frequency of 100 MHz.

Auto configuration
Disabled

EDO DRAM Speed Selection
60ns

EDO CASx# MA Wait State
2

EDO RASx# Wait State
1

SDRAM RAS-to-CAS Delay
2

SDRAM RAS Precharge Time
2

SDRAM CAS Latency Time
2

DRAM Precharge Control
Disabled

DRAM Data Integrity Mode
Non-ECC

Video Bios Cacheable
Enabled

System Bios Cacheable
Enabled

Video Ram Cacheable
Enabled

16-bit I/O Recovery Time
1

8-bit I/O Recovery Time
1

Passive Release
Enabled

Delayed Transaction
Disabled

AGP Aperture Size
64 Mbyte

Technical Notes - Settings

You can set the processor features (frequency multiplier and bus frequency) through the BIOS; you can select the autodetect feature using the Chipset Features Setup item or forcing manually the parameters. The Turbo 66 jumper allows to turn on or off manually the control on the B21 pin of the CPU; when the jumper is open you can use the bus frequencies above 100 MHz even with CPUs designed to be used with bus at 66 MHz without having to manually cover the B21 pin of the CPU.