H-ig41-uatx Rev 1.1 Manual -

Have a correction or additional detail about Rev 1.1? Contact the site admin to help preserve this legacy hardware information.

| Symptom | Likely Cause | Fix | |---------|---------------|------| | No POST, fans spin | Incompatible CPU or FSB | Ensure CPU FSB is 800/1066/1333 MHz. Rev 1.1 does not support 1600MHz FSB. | | USB ports not working after boot | Legacy USB disabled | Enter BIOS > Advanced > USB Configuration > Set Legacy USB to “Enabled”. | | Onboard VGA shows no display | External GPU takes priority | Remove PCIe GPU or set “Init Display First” to “Onboard” in BIOS. | | CMOS checksum error | Dead battery | Replace CR2032 battery. Battery holder is vertical – gently pry out. | | Audio front jack not working | Jack sensing mismatch | Set front panel audio mode to AC’97 (not HD Audio) in BIOS if case is old. | h-ig41-uatx rev 1.1 manual

Rev 1.1 does not support UEFI boot; strictly legacy BIOS. Have a correction or additional detail about Rev 1

| Connector | Label | Function | |-----------|-------|----------| | | CPU_FAN | 4-pin PWM CPU fan | | SYS_FAN | SYS_FAN | 3-pin chassis fan | | ATX_POWER | ATX_24P | Main power (24-pin) | | ATX_12V | ATX_4P | CPU power (4-pin) | | DIMM_A1/B1 | DDR3 | Memory slots | | SATA1-4 | SATA1~4 | SATA 2.0 ports | | IDE | PATA | 40-pin IDE (master/slave) | | F_PANEL | F_PANEL | Front panel switch/LED header | | USB | F_USB1/2 | Front USB 2.0 (9-pin) | | AUDIO | F_AUDIO | Front panel HD Audio/AC’97 | | CLR_CMOS | CLR_CMOS | 2-pin jumper to clear BIOS | | COM | COM | Serial port header (optional) | | SPEAKER | SPEAK | 4-pin speaker header | | CD_IN | CD_IN | Analog CD audio input (4-pin) | | | CMOS checksum error | Dead battery