Power Status LED (Pin 2 is Positive + , Pin 4 is Negative - ). Pins 5, 7 [RESET]: Reset Switch (Polarity independent).
Ensure the front USB 3.0 header is plugged into the blue 19-pin header on the motherboard.
Remove the battery and wait 5 minutes to allow all residual electrical charge to drain from the motherboard capacitors. Reinsert the battery, restore power, and boot the machine.
Populate slots of the same color first (e.g., slots 1 and 3, or slots 2 and 4).
9-pin standard configuration groupings supporting up to 4 auxiliary ports across expansion panels. Acer Ipimb-ar Rev 1.02a Manual
Understanding the baseline hardware constraints of the Intel B75 Express chipset architecture prevents irreversible hardware conflicts. Below are the explicit performance limits for this specific motherboard layout: Specification Feature Technical Capability Detail Micro-ATX (244 mm × 244 mm footprint) Chipset Intel B75 Express Architecture (Panther Point) CPU Socket LGA 1155 / Socket H2 Supported Processors
Top Row: [ HD_LED+ ] [ HD_LED- ] [ PWR_SW ] [ PWR_SW ] [ KEY ] ( Pin 1 ) ( Pin 3 ) ( Pin 5 ) ( Pin 7 ) ( Pin 9 ) Bottom Row: [ PWR_LED+][ PWR_LED-] [ RST_SW ] [ RST_SW ] [ DUMMY ] ( Pin 2 ) ( Pin 4 ) ( Pin 6 ) ( Pin 8 ) ( Pin 10 ) Use code with caution. Detailed Pin Mapping:
Use identical memory sticks matching in capacity, speed, and timings.
The physical connectivity array accessible from the rear of the computer chassis includes both legacy and modern standards: Power Status LED (Pin 2 is Positive +
The official manual lists only the CPUs Acer sold with the system. But after years of testing, the Rev 1.02a supports:
Use this guide as your living manual. Bookmark it. And if you eventually find the original PDF from an old hard drive or a backup CD, consider uploading it to the Internet Archive for the next person searching in vain.
1 × PCI Express x16 Slot (PCIe 3.0 speed achieved with Ivy Bridge), 3 × PCI Express x1 Slots
If you have landed on this page, you are likely searching for the elusive . You are not alone. This motherboard, a proprietary unit manufactured for Acer’s mid-to-late 2000s desktop lineup (most notably the Aspire M3800, M5800, and the Veriton M670G), is well-documented in forums but poorly supported by official Acer legacy servers. Remove the battery and wait 5 minutes to
1x HDMI, 1x VGA, 2x USB 3.0, 4x USB 2.0, RJ45 LAN, and standard Audio I/O. Documentation & Resources
Search for these service guides on or Tim.id.au (a well-known repository for legacy Acer manuals).
Since obtaining the original PDF can be a challenge, below is a comprehensive substitute covering every section of the missing manual.