Acer Ipimbar Rev 102a Manual New May 2026

The manual lists three important jumpers (usually near the SATA ports or CMOS battery):

| Jumper | Pins | Description | |--------|------|-------------| | CMOS1 | 1-2 (default) | Normal operation | | | 2-3 | Clear CMOS (hold for 10 seconds while PC is unplugged) | | ME_JUMPER1 | 1-2 (default) | Intel Management Engine enabled | | | 2-3 | ME disabled (used for recovery) | | BIOS_CONFIG1 | 1-2 (default) | Standard boot | | | Open | Boot block recovery mode |

Caution: Do not change ME_JUMPER1 unless you have a specific reason (e.g., recovering from a corrupted ME region).

| CPU Model | Cores | TDP | BIOS Required | Notes | | :--- | :--- | :--- | :--- | :--- | | AMD Phenom II X4 945 | 4 | 95W | P01.A | Best balance. | | AMD Athlon II X4 640 | 4 | 95W | P01.A | Cool running. | | AMD Phenom II X6 1045T | 6 | 95W | P03.B | Max cores. Requires heatsink upgrade. | | AMD Sempron 140 | 1 | 45W | P01.A | For low-power server builds. | | AMD FX-4300 | 4 | 95W | Modded BIOS only | Not officially supported. May fail POST. |

❌ NOT Supported: FX-8000/9000 series, any CPU with >95W TDP, Phenom I (Socket AM2+).

To get the manual, search Google specifically for: acer ipimbar rev 102a manual new

"Acer Aspire XC-603 Service Guide PDF"

This document will contain the full schematics and manual for the IPIMBAR Rev 1.02A motherboard.

While Acer does not typically release full public service manuals for its motherboards, the Acer IPIMB-AR (Rev 1.02A) is a common board found in systems like the Acer Predator G3620, Aspire M3985, and Gateway DX4870. 

Below are the technical specifications and layout details for this revision based on manufacturer documentation available through Scribd and The Retro Web:  Core Specifications  Form Factor: Micro-ATX. Chipset: Intel B75 Express.

CPU Socket: LGA 1155 (Supports Sandy Bridge and Ivy Bridge processors up to 95W TDP). Examples: Core i7-3770, i5-3570, i3-3220. Memory: 4x 240-pin DDR3 DIMM slots. Speed: Supports Dual Channel DDR3 1333/1600 MHz. Capacity: Maximum 16GB non-ECC, unbuffered memory.  Expansion & Storage  PCIe Slots: The manual lists three important jumpers (usually near

1x PCI Express x16 (Version 3.0 with Ivy Bridge, 2.0 with Sandy Bridge). 3x PCI Express x1 (Version 2.0). SATA Ports:

2x SATA III (6Gb/s) — typically colored differently (often white or blue). 4x SATA II (3Gb/s).  Internal Connectors (Pinouts) 

Power: 1x 24-pin ATX Main Power + 1x 4-pin ATX 12V CPU Power.

Fans: 1x 4-pin CPU Fan header + 1x 3-pin System/Rear Fan header.

Front Panel: Headers for Audio, USB 2.0, and standard Front Panel (Power, Reset, HDD LED). Other: Clear CMOS jumper and 3V Battery socket.  Rear I/O Panel  Video: 1x HDMI, 1x VGA. USB: 2x USB 3.0 (blue), 4x USB 2.0 (black). Networking: 1x RJ45 Gigabit Ethernet port (Intel). Audio: 3-jack Audio I/O (Headphone/Microphone/Line-in). Legacy: 2x PS/2 ports for keyboard and mouse.  Caution: Do not change ME_JUMPER1 unless you have

If you are performing a BIOS update, please note that later revisions of this board (shipped with Windows 8) may use UEFI, while earlier Windows 7 versions may use a legacy boot environment. 

Since Acer no longer produces paper manuals for this legacy board, a "new manual" in this context means:

If you buy a used board or forget your BIOS password, a "new manual" would direct you to jumper CMOS1.

Instead of hunting for a dead link, here is the critical data for the IPIMBAR REV 102A: