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XPS 730(X) H2C cable pinout (work in progress)
liquid pump and rear cpu fan are each connected to main H2C cable
liquid pump: 6 pin
rear cpu fan: 5 pin
H2C: 16 pin
6 pin pump cable (6 pin connector)
| 1 | 2 | 3 | 4 | 5 | 6 |
| gnd | pwm | n/c | n/c | tach | +12V |
interface connector
| 1P | 2 | 3 | 4 | 5 | 6P |
| jump2F | #7 | jump3F |
5 pin fan (5 pin connector)
| 1 | 2 | 3 | 4 | 5 |
| pwm | gnd | +12V | tach | n/c |
interface connector
| 1 | 2F | 3F | 4 | 5 |
| jump1P | jump6P |
16 pin to MCB
| 1 Gnd (TEC) | 2 Gnd (TEC) |
| 3 +12V Red (TEC) | 4 +12V Red (TEC) |
| 5 n/c | 6 n/c |
| #7 | 8+12V pump/fan |
| #9 Gnd | 10 pump pwm |
| 11 s2/s3 | 12 pump tach |
| 13 s1 | 14 fan pwm |
| #15 jump#9 | 16 fan tach |
thermistor
| S1 | S2 | S3 |
The thermistor feeds into MCB to turn on/off +12V on the two red wires.
The TEC is hard coded to only turn on when temps rise above a certain amount and it's 100% load.
each TEC is 40x40 mm, which is industry standard size. the ceramic cooler is a 40x80mm block on each side, with 4x TECs, 2 per side. two TEC connected in series refers to the 2 TEC on the same side, each getting +6V. the TEC's on opposite side are completely separate electrically. that is why there are two +12V red wires, one for each side.
(edited)
