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Green ATX motherboard with three black ISA slots, two white PCI slots, Socket 478 CPU socket, two blue DDR DIMM slots

Roby Technology Co., Limited

Roby Technology Co., Limited 845GV ATX ISA Mainboard telephone

SKU CH-VNXS-7JN5Y

Socket 478 ATX board with three ISA slots, two PCI slots, onboard VGA, audio and LAN

  • FeaturesISA Mainboard with ISA PCI Slots
  • TypeISA Mainboard
  • BatteryLithium-Ion
  • Socket 478 Celeron/Pentium 4 support for legacy CPU compatibility
  • Three ISA plus two PCI slots enable mixed expansion cards
  • Onboard VGA, audio and LAN reduce add-on card needs
  • Two DDR 266/333 DIMM slots accept up to 2 GB memory
  • ATX 255 × 180 mm form factor fits standard cases

Industrial ATX ISA Mainboard

This new Roby Technology Co., Limited 845GV motherboard targets industrial system integrators who need legacy ISA expansion inside a standard ATX chassis. It suits CCTV servers, data-acquisition rigs and long-life embedded deployments that still rely on ISA cards.

Socket 478 with 3 ISA slots

The board uses the Intel 845GV+ ICH4 chipset on an LGA 478 socket running a 533 MHz front-side bus, accepting Celeron 4 or Pentium 4 processors. Three full-size ISA slots sit alongside two PCI slots and one AGP 4/8× slot, while two 184-pin DDR DIMM sockets support 266/333 MHz modules up to 2 GB total.

ATX form factor with legacy I/O

Measuring 255 × 180 mm, the board fits regular ATX cases and draws power from a standard ATX supply. Rear I/O provides a VGA port, Realtek RTL8100C Fast Ethernet, Realtek ALC655 AC'97 audio, two PS/2 ports, one RS-232 COM port, one parallel port and six USB 2.0 ports. Two IDE headers and a lithium-ion battery complete the onboard feature set.

Highlights

  • Socket 478 Celeron/Pentium 4 support for legacy CPU compatibility
  • Three ISA plus two PCI slots enable mixed expansion cards
  • Onboard VGA, audio and LAN reduce add-on card needs
  • Two DDR 266/333 DIMM slots accept up to 2 GB memory
  • ATX 255 × 180 mm form factor fits standard cases

Specifications

BrandRobyTech
SeriesISA Motherboard,ISA Mainboard ATX
Model845GV ATX ISA Mainboard
Part Number845GV ISA Motherboard ATX
FeaturesISA Mainboard with ISA PCI Slots
TypeISA Mainboard
BatteryLithium-Ion

Questions about this item

How does the 533 MHz front-side bus affect real-world CPU performance?

The 533 MHz FSB sets the data rate between a Socket 478 Celeron or Pentium 4 processor and the 845GV chipset, so the CPU can only run at speeds supported by that bus frequency.

What does the AGP 4/8X slot actually limit for graphics upgrades?

The AGP 4/8X interface caps the graphics card to the AGP signalling standard and shared system memory bandwidth of the 845GV chipset, restricting you to legacy AGP cards only.

Will the 293 mm by 180 mm board fit in a standard ATX case?

The board measures 293 mm by 180 mm and follows the ATX form factor, so it mounts in any standard ATX chassis using the regular ATX screw pattern.

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