Look for the filter capacitors around the CPU socket. The schematic will list the exact Farad and Voltage ratings (usually 6.3V 820uF or similar).
: VGA port, 4-6x USB 2.0 ports, RJ-45 Ethernet (Realtek), and 3-hole audio jacks (Realtek ALC662). The Retro Web Technical Resources User Manual : A digital copy of the H-IG41-uATX Manual hig41uatx rev 11 schematic verified
Understanding the HIG41UATX Rev 1.1 Motherboard: A Detailed Technical Guide Look for the filter capacitors around the CPU socket
The SPI Flash chip (typically 8Mb or 16Mb) is detailed in the schematic. If the board fans spin but there is no POST, re-flashing the BIOS with a verified Rev 1.1 dump is the first step. 4-6x USB 2.0 ports