Microsoft X861949-005
About this component
This Microsoft-branded chip is the Xbox One's southbridge, taking care of slower I/O (USB, storage and network links), clock generation and system control functions that sit outside the APU. The same family carries through the One, One S (-005) and One X (-007), and a close relative (marked T6WD5XBG-0004) appears on the Series X. Replacement chips are sold under the X-number, so check the suffix matches the console model before ordering. It is a BGA part and needs proper rework equipment. Part variants: X861949-005 on the original Xbox One and One S (iFixit); X861949-007 on the One X (Electronics360). The package also carries 'T6WD5XBG-0003'.
USB, network and storage I/O.
Pinout & readings
No pinout or reference readings yet — these show what each pin does and what a healthy part should measure.