| Feature | Details | |---------|---------| | Chipset | Intel H61 Express | | CPU socket | LGA1155 | | RAM slots | 2 x DDR3 DIMM (max 16GB, 1066/1333/1600 MHz) | | Expansion slots | 1 x PCIe x16, 1 x PCIe x1, 1 x PCI | | Storage | 4 x SATA 2.0 (3Gb/s) – no SATA 3 (6Gb/s) | | Rear I/O | PS/2, VGA, 4x USB 2.0, audio jacks, RJ45 | | Power | 24-pin ATX + 4-pin CPU |
1. Front panel header (F_PANEL)
The pinout is non-standard on some Acer boards. Typical layout for H61H2-AD: Acer H61h2-ad Motherboard Manual
Pin 1 → HDD LED (+)
Pin 2 → Power LED (+)
Pin 3 → HDD LED (-)
Pin 4 → Power LED (-)
Pin 5 → Reset switch
Pin 6 → Power switch
Pin 7 → Ground (Reset)
Pin 8 → Ground (Power)
2. Clear CMOS jumper (CLR_CMOS)
Located near the SATA ports or battery. Short pins 2-3 for 10 seconds (power off). | Feature | Details | |---------|---------| | Chipset
3. BIOS recovery
Some Acer H61 boards support Crisis BIOS recovery: rename BIOS file to AMIBOOT.ROM, place on FAT32 USB, press Ctrl+Home during power-on. place on FAT32 USB
The manual specifies two DDR3 DIMM slots. This is a cost-cutting measure typical of OEM boards.
Acer, like many OEMs (HP, Dell), often deviates from standard ATX form factors.