H-ig41-uatx Rev 1.1 Manual May 2026

Key locations (viewed from top, I/O ports left):

Most users today cannot find the official manual. Here’s why:

Consequently, the “story” becomes one of reverse engineering: users rely on:

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

Important BIOS limitation: The manual explicitly states that 8GB of RAM (2x 4GB DDR3) is supported only with a 64-bit OS and BIOS version 1.10 or newer. Older BIOS versions limit to 4GB.

Pro tip: The HP Compaq 6000 Pro Service Reference Guide contains the same diagrams and jumper settings as the standalone motherboard manual.

| Pin | HD Audio | AC’97 | |-----|----------|-------| | 1 | MIC_L | MIC_IN | | 2 | GND | GND | | 3 | MIC_R | MIC_BIAS | | 4 | NC | +5V | | 5 | LINE_OUT_R | AUD_R_R | | 6 | SENSE_RETURN | AUD_RET_R | | 7 | NC | NC | | 8 | KEY (no pin) | KEY (no pin) | | 9 | LINE_OUT_L | AUD_L_L | | 10 | SENSE_SEND | AUD_RET_L |

Q: Is the H-IG41-UATX Rev 1.1 compatible with DDR2 RAM?
A: No. Rev 1.1 exclusively uses DDR3 DIMMs. DDR2 is for earlier revisions. Key locations (viewed from top, I/O ports left):

Q: Can I use a Core i3/i5 on this board?
A: No. LGA775 is completely different from LGA1156/1155.

Q: The manual shows an IDE header, but my Rev 1.1 doesn’t have it.
A: That’s correct – Rev 1.1 removed IDE. The manual may contain a generic section. Use SATA to IDE adapters.

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. F_AUDIO – Bottom left (AC'97 or HD Audio)