This is the original type H logic board for the Early 2005 model of PowerMac G5. It is advisable to only swap like for like with these logic boards.
To confirm that you have a Type H logic board you will need to extract the EEE code from the serial number on the logic board. This number is usually written on a white label either to the left of the PCI graphics card slot, or behind the central fan in the bottom compartment. The EEE number consists of the 3 digits before the last number. (eg: XXXXXXX
EEEX) Type H has an EEE code of either
SML or
SMM