I just recently got my hands on a brand new generic "POWER PC" ML915 350W power supply, which cost $20 CAD at a small local computer shop.
I could not positively identify the manufacturer of this PSU as there was no UL number to look up, and all the markings on the PCB (which were "HY", "HY0011", "ML915", and "ML 908B") turned up nothing informative to this PSU on Google. This PSU does sort of look similar to my Delta Power 450W PSU that I have in an older thread: https://www.badcaps.net/forum/showthread.php?t=7708
Here are its specifications on the sticker:
+5V = 20A
+12V = 14A
-5V = 0.5A
-12V = 0.5A
+3.3V = 16A
5VSB = 2.0A
Total = 350W (more modest than the typical 400W+ claims of other generic PSUs)
Here are some pictures of this PSU:
Three shots of the power supply.
Not many connectors coming from this power supply; there's just the 20+4 pin ATX motherboard connector, 4-pin P4 12V connector, four 4-pin peripheral power connectors, and just one SATA power connector (missing the 3.3V wire found on most better power supplies).
The label of this power supply.
Two overhead shots of the internals of this power supply.
The two "KDC" 560uf 200V primary caps in this power supply.
What consists of the transient filtering stage (nothing really), as well as the four diode treatment consisting of 1N5408 3A diodes.
The primary side silicon, consisting of a C5027 3A NPN transistor and two Fairchild-branded 13009 fast-switching NPN transistors, all in the familar TO-220 package size.
The three transformers in this power supply.
Another shot of part of the primary side of this power supply.
The secondary side capacitors; they are all "BH" brand, and the four blue 10mm caps are rated at 1000uf 10V while the two brown ones of the same size between them are 1000uf 16V.
The secondary side silicon, consisting of one MOSPEC F16C20C 16A power rectifier and two MOSPEC S20C45C 20A Schottky rectifiers, all in the TO-220 package size.
The "CG8010DX16" PWM chip in this power supply on the secondary side.
The single 80mm exhaust fan in this power supply is a "Legend" DF0802512SEMN, which I could not find any information on.
A view of the 80mm exhaust fan of this power supply.
Two pictures of the PCB underside of this power supply.
Regarding what might be the true wattage of this power supply, the 3A 1N5408 diodes on the primary side would mean that this power supply would only be able to pull in a maximum of 360W on a 120V AC line, which would actually be 252W assuming 70% efficiency (typical of cheaper PSUs). The silkscreen on the PCB states "F5AL/250VAC 230W" on it (visible in one of my pictures), and the fuse used in this power supply is indeed a 5A 250VAC fuse. Both these factors I found could indicate that a more honest rating of this PSU from the manufacturer would be around 230W, which seems reasonable considering the maximum amount of power this PSU could pull in from a 120V AC outlet judging from the diodes.
I do not plan on rebuilding or upgrading this PSU, as the cost for capacitors and other parts would be equal to that of a decently made higher-quality power supply. I purchased this PSU to put into my basic Athlon 64 X2 3800+ build if I ever sell it or give it away, as I have my rebuilt Delta Power 450W currently powering that and I want to keep that rebuilt PSU. I have not yet plugged in and turned on this "POWER PC" PSU, and do not plan to in the near future as I currently have no need for it.
Any comments on this "POWER PC" 350W PSU?
I could not positively identify the manufacturer of this PSU as there was no UL number to look up, and all the markings on the PCB (which were "HY", "HY0011", "ML915", and "ML 908B") turned up nothing informative to this PSU on Google. This PSU does sort of look similar to my Delta Power 450W PSU that I have in an older thread: https://www.badcaps.net/forum/showthread.php?t=7708
Here are its specifications on the sticker:
+5V = 20A
+12V = 14A
-5V = 0.5A
-12V = 0.5A
+3.3V = 16A
5VSB = 2.0A
Total = 350W (more modest than the typical 400W+ claims of other generic PSUs)
Here are some pictures of this PSU:
Three shots of the power supply.
Not many connectors coming from this power supply; there's just the 20+4 pin ATX motherboard connector, 4-pin P4 12V connector, four 4-pin peripheral power connectors, and just one SATA power connector (missing the 3.3V wire found on most better power supplies).
The label of this power supply.
Two overhead shots of the internals of this power supply.
The two "KDC" 560uf 200V primary caps in this power supply.
What consists of the transient filtering stage (nothing really), as well as the four diode treatment consisting of 1N5408 3A diodes.
The primary side silicon, consisting of a C5027 3A NPN transistor and two Fairchild-branded 13009 fast-switching NPN transistors, all in the familar TO-220 package size.
The three transformers in this power supply.
Another shot of part of the primary side of this power supply.
The secondary side capacitors; they are all "BH" brand, and the four blue 10mm caps are rated at 1000uf 10V while the two brown ones of the same size between them are 1000uf 16V.
The secondary side silicon, consisting of one MOSPEC F16C20C 16A power rectifier and two MOSPEC S20C45C 20A Schottky rectifiers, all in the TO-220 package size.
The "CG8010DX16" PWM chip in this power supply on the secondary side.
The single 80mm exhaust fan in this power supply is a "Legend" DF0802512SEMN, which I could not find any information on.
A view of the 80mm exhaust fan of this power supply.
Two pictures of the PCB underside of this power supply.
Regarding what might be the true wattage of this power supply, the 3A 1N5408 diodes on the primary side would mean that this power supply would only be able to pull in a maximum of 360W on a 120V AC line, which would actually be 252W assuming 70% efficiency (typical of cheaper PSUs). The silkscreen on the PCB states "F5AL/250VAC 230W" on it (visible in one of my pictures), and the fuse used in this power supply is indeed a 5A 250VAC fuse. Both these factors I found could indicate that a more honest rating of this PSU from the manufacturer would be around 230W, which seems reasonable considering the maximum amount of power this PSU could pull in from a 120V AC outlet judging from the diodes.
I do not plan on rebuilding or upgrading this PSU, as the cost for capacitors and other parts would be equal to that of a decently made higher-quality power supply. I purchased this PSU to put into my basic Athlon 64 X2 3800+ build if I ever sell it or give it away, as I have my rebuilt Delta Power 450W currently powering that and I want to keep that rebuilt PSU. I have not yet plugged in and turned on this "POWER PC" PSU, and do not plan to in the near future as I currently have no need for it.
Any comments on this "POWER PC" 350W PSU?
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