H-ig41-uatx Rev 1.1 Manual -

H-IG41-UATX Rev 1.1 Manual: A Comprehensive Guide

Problem 4: "CMOS Checksum Bad" error every boot.

Manual solution (Section 2.6 - CMOS Battery): Replace the CR2032 battery. The manual then instructs to: h-ig41-uatx rev 1.1 manual

Q: Why does my board display “H-IG41-UATX” but BIOS says “eMachines ET1830”?
A: This board is an OEM board for eMachines. The underlying hardware is identical. H-IG41-UATX Rev 1

6. Troubleshooting Quick Reference

| Symptom | Probable fix | | :--- | :--- | | No power | Check 24-pin + 4-pin CPU power. Test PSU (green-black wire jump method). | | Beeps (long repeating) | Memory not detected. Reseat RAM, clean slots, test one stick mainly in DIMM0. | | Beeps (1 long, 2 short) | Graphics issue. Reseat GPU or remove discrete card to test internal VGA. | | USB keyboard not working in BIOS | Enable Legacy USB Support in BIOS → Advanced → USB. | | After CPU upgrade – no boot | Clear CMOS, verify CPU is on supported list (FSB compatibility). | | CMOS checksum error | Replace CR2032 battery on motherboard. | | Windows install fails or hangs | Switch SATA mode to IDE (or slipstream AHCI drivers). | Storage Options: SATA Emulation – Set to IDE

Key BIOS settings explained in the manual:

• Storage Options: SATA Emulation – Set to IDE for older OS (XP), AHCI for Vista/7/8/10, or RAID if using multiple drives.
• Power Management: "Wake on LAN" and "USB Wake Support" are detailed in the Advanced > Device Options section.
• CPU Configuration: Enable Intel Virtualization Technology (VT-x) – this is disabled by default in Rev 1.1 manual.
• Memory Timing: The manual warns that manual DRAM timing changes are locked unless using specific HP-certified RAM modules.

H-IG41-uATX Rev 1.1 Motherboard Guide

1. Overview & Specifications

This motherboard uses the Intel G41 + ICH7 chipset. It supports Intel Core 2 Duo/Quad processors and is designed for DDR3 memory.

• Main Power: 24-pin ATX connector.
• CPU Power: 4-pin ATX 12V connector.