Up to 32 GB total capacity (using 4 x 8GB modules). Population Guidelines
To help me provide more specific advice, please let me know:
Because Pegatron strictly manufactures these boards under contract for hardware brands like HP, finding an official retail user guide under the "Pegatron" name is notoriously difficult. This comprehensive manual fills that gap, detailing the full hardware specifications, layout, header pinouts, memory configurations, and troubleshooting steps needed to upgrade or repair a PC utilizing this hardware. Technical Specifications Overview
1066 MHz or 1333 MHz (Will run 1600 MHz modules at 1333 MHz) Architecture: Dual-channel capable Motherboard Layout and Connectors pegatron 2ad5 manual
The Pegatron 2AD5 is designed for the Micro-ATX form factor. It relies on the Intel Z75 chipset, which offers a solid blend of performance for older systems. Pegatron Corporation Form Factor: Micro-ATX (24.4 cm × 24.4 cm) Chipset: Intel Z75 Socket: LGA 1155 (Socket H2) BIOS: AMI 8.09 UEFI (2012) 2. Memory Configuration and RAM Support
9-pin Front Panel Layout: [ 2 ] [ 4 ] [ 6 ] [ 8 ] [X] [ 1 ] [ 3 ] [ 5 ] [ 7 ] [ 9]
Always keep the protective plastic on when swapping CPUs to protect the delicate LGA 1155 socket pins from bending. Apply a pea-sized amount of high-quality thermal paste before mounting your heatsink and securing the 4-pin CPU fan connector to the CPU_FAN header. Memory Layout and Upgrade Rules Up to 32 GB total capacity (using 4 x 8GB modules)
Understanding the physical layout of the Pegatron 2AD5 is essential for troubleshooting or moving the board to a new case. Power Connectors 24-pin main power connector ATX_CPU: 4-pin ATX 12V processor power connector Internal Headers
(2nd Gen "Sandy Bridge" and 3rd Gen "Ivy Bridge") Intel Pentium / Celeron (LGA 1155 variants)
The Pegatron 2AD5 is built on the Intel H61 chipset and utilizes the Micro-ATX (uATX) form factor. This makes it a budget-oriented but highly reliable board designed to support 2nd and 3rd generation Intel Core processors. Specification Pegatron (OEM for HP/Compaq) HP/Compaq Name Form Factor Micro-ATX (24.4 cm x 22.0 cm / 9.6 in x 8.7 in) Chipset Intel H61 Express Processor Socket Memory Slots 2 × DDR3 DIMM (Dual Channel) Expansion Slots 1 × PCIe x16, 3 × PCIe x1, 1 × PCIe Mini Card Storage 4 × SATA 2.0 (3.0 Gb/s) ports Audio Realtek ALC656 (5.1 channel HD audio) Networking Realtek RTL8171E Gigabit Ethernet Processor (CPU) Support Technical Specifications Overview 1066 MHz or 1333 MHz
If you genuinely need the engineering specs (voltage, pinouts, antenna impedance) because you are repairing a board:
Connect the Power LED wires. Pin 2 is Positive (+), Pin 4 is Negative (-).
The older BIOS framework on this board sometimes struggles to recognize modern graphics cards (like the GTX 10-series, RTX series, or AMD RX series) that strictly require UEFI firmware. If your PC hangs on the HP logo screen after installing a new GPU, a BIOS update is required.