In-Win IW-P430J2-0 and IW-P430J3-1

The model names suggest that these PSUs are equipped with 12cm fans (the letter J), and one of them has a passive PFC device (the index “3-1”). Externally and in the characteristics these units resemble the IW-ISP350J2-0 (see above), save for the higher allowable load power. Like with the ISP350, the protruding grid above the fan is a drawback. You can of course replace it yourself, but since there are no indents for the screws, the new grid must be placed inside, between the fan and the case. Otherwise, it will protrude rather far to the outside of the case, too.

The component layout on the PCB differs, although slightly, from the ISP350J2-0, but the employed elements and the circuit design are the same. The line filter is complete; the capacitors on the PSU’s input are 820µF each; the heatsinks are thick, with four short perpendicular ribs.

The cables have got longer since the previous model. The PSU offers:

• 20-pin ATX and 4-pin ATX12V connectors on 45cm cables
• A 45cm+15cm+10cm cable with two Molex connectors and one floppy mini-plug
• A cable with two Molex connectors (75cm from the PSU to the first connector)
• A cable with three Molex connectors (60cm+15cm+10cm – it’s the same as the first cable, but the last connector is for a hard drive rather than for a floppy drive)
• A cable with two SATA power connectors (70cm+15cm)

So, there are seven connectors for PATA and two connectors for SATA drives here, and the cables are long enough even for a large system case. The only drawback is that there’s only a couple of nylon braces for the entire cable.

Like with the previous units, the output power is overstated: it is actually only 350 watts rather than 430 watts.

The ATX12V 1.3 standard doesn’t describe power supplies with an output power of over 300W, so the table compares the In-Win PSUs with the typical 300W unit. As you see, the load capacity of the +5V rail is the only parameter that has improved in comparison with the ISP350J2-0, and only by a dozen of watts. So, the advantages of these units will only show up at balanced loads, i.e. when the total load is evenly distributed among the output rails.