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IBT Technologies Inc.; 5405 Thimens; Quebec, Canada H4R 2H4; 1-866-590-4288; info@ibt.ca
MB870 - ATI RS300M Mini iTX Motherboard
Best Graphic Performance in its Class


CPU Socket
Socket 478
CPU Supported
Intel® Pentium 4 / Celeron, 2.0GHz~3.2GHz+
Hyper-Threading supported
CPU Voltage
0.8375V~1.6V (VRD10)
ATI RS300M Chipset
North Bridge: Mobility IGP9180 868-pin, BGA
South Bridge: IXP150 457-pin, BGA
Processor Operating Frequency
L2 Cache
128K/256K/512K, CPU integrated
Power Management
APM 1.2
Award BIOS, ACPI supported
System Memory
One DDR slots
Supports up to 1GB PC266/333/400 DDR SDRAM
(ECC function not supported)
Mobility IGP9180 embedded, AGP 4X, CRT, TV-out, LVDS
VGA CRT and TV-out connectors on board
Supports dual independent view (LVDS & CRT or LVDS & TV-Out combination)*
Realtek 8100BL LAN Controller (10/100Mb)
IXP150 built-in sound controller with AC97 codec
ALC650 AC3 5.1 CH. (Line-out, Line-in, Mic)
Winbond 83627HF supports IrDA x 1, Parallel x 1,
COM1, COM2 (RS232), FDC up to 2.88MB
(3 Mode support), hardware monitoring
Secondary I/O
Fintek F81216D supports COM3, COM4 (RS232)
Keyboard Controller
Built in Winbond 83627HF
IDE Interface
Built in IXP150, supports Ultra DMA 33/66/100
IDE1: 40 pin pitch 2.54mm
IDE2: 44 pin pitch 2.0mm

- Mini ITX (170mm X 170mm)
- Intel® Pentium 4, 2.0GHz~3.2GHz
- ATI RS300M Chipset, up 800MHz FSB

- Built-in VGA, AGP 4X, support CRT, TV-out & LVDS
- Realtek 8100BL 10/100Mb LAN controller
- One DDR socket supports up to 1GB Memory
- Digital I/O, Serial ATA, one PCI slot, AC97
- Four USB ports, four COM ports

FDD Interface
Supports one 3.5" floppy disk drive
Serial ATA
SiI3512 , supports 2 ports

Digital I/O
4 in / 4 out
Parallel Port
One parallel port supports SPP/EPP/ECP
Serial Ports
Four RS-232 ports
Watchdog Timer
Generates system reset; 256 levels
Hardware Monitoring
Built in Winbond W83627HF; monitors system/
CPU temperature and voltage status
USB 2.0 compliant
Supports 4 USB ports
Pin header
Keyboard and Mouse Connector
PS/2 type keyboard and mouse connectors
Expansion Slots
1 PCI, support 2 bus master
Power Connector
ATX 12V power connector
System Voltages
+5V, +12V, -12V, 5VSB, 3.3V
Other Features:
Modem wakeup, LAN wakeup
Form Factor
Mini ITX motherboard
170mm x 170mm
Power Consumption
- With Pentium 4 2.4GHz (512KB) with 256MB DDR memory
+5V: 3.29A; +12V: 4.83A
-- With Pentium 4 3.06GHz (512KB) with 512MB DDR memory
+5V: 3.17A; +12V: 7.14A
Operating Temperature

0°C~60°C (32°F~140°F)

Storage Temperature

-20°C~80°C (-4°F~176°F)

Relative Humidity

10%~90% (non-condensing)

Download User's Manual

Ordering Information

MB870 - Socket 478 ATI RS300M P4 Mini ITX Motherboard Supporting CRT, TV out, and LVDS

* Note: Since CRT and TV-Out use the same pipe, they can not display simultaneously. Only with LVDS & CRT or LVDS with TV-Out combination
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