Reviews - PC Power & Cooling Pro-Source 1500 UPS
Sample Provided by: PC Power & Cooling (By OklahomaWolf on Sun, Jul-19-2009)

Page 4 -

What does a Pro-Source look like with the cover off? Take a look:

I hear some of you asking who made this thing for PC P&C. The answer to that is: it appears to be Beam-Tech. Seriously - it's a dead ringer for their Smart Sine SS-1500. I guess they probably had no choice but to buy a Chinese UPS - after all, there can't possibly be any American made UPSs out there, can there? What's that you say? Tripp who? Lite what? Isn't that some kind of beer or something?

This here transformer adds up to a good deal of the 40 some pounds this unit weighs.

The batteries are found near the front of the unit. To replace them, you unhook them, remove that metal rail at the bottom, and slide the batteries right out.

Batteries from Yuasa. You know, the manual says you should return these to PC P&C for disposal, but wouldn't it be cheaper to recycle them locally?

This is the back of the Ethernet protection board.

And this is the front. All this board has on it is a bunch of diodes and an MOV. As mentioned, there's no connection to the rest of the UPS electronics, though Beam-Tech appears to offer such functionality as an option.

This is the display assembly.

And this is the back of the display PCB.

The backlight for the display turns out to be a set of four green LEDs.

Here's the main PCB in all its glory.

The first thing I noticed about the main PCB was this: a missing fan. You can see the transistor in the lower right corner has blown itself apart, and... what the... the part number's been scraped off! Folks, I hate seeing that... it makes me wonder who's trying to hide what from who. Did Beam-Tech do that? Did PC P&C do it before they sent it to me? I don't know. Not too happy about it.

Pulling out a bit, we can see several unused connector spots on the main PCB, as well as another blown apart transistor just north of dead center. Is it just me, or did you also expect more guts bolted to that inverter heatsink for a 900W UPS?

Capacitors are all from Gajan, a company I've never heard of. Are they made of ganja? Why do I have the strong urge to listen to Cypress Hill now? Ah, right... it's because I'm insane in the membrain. Insane in the brain!!!

One of many controllers on the board I couldn't track down a datasheet for, a UW-702.

The other inverter heatsink. Both of those transistors are blown, and once more the part numbers have been sanded off so I can't tell whether or not the inverter should be working as hard as this unit is rated for. And you know what really irks me? I cracked open the second UPS, and it was like this too. RARRRRRR! Still, I did get 900W out of the second one without it blowing or showing signs of stress (other than a very warm top panel), so I don't think I can be too hard on it.

Lurking behind the red transformer is one heck of a huge MOV. It's that big blue disk. It appears, however, that there are some filtering coils missing next to those terminals in the center.

Another controller I couldn't ID. This one appears to drive the USB and/or RS232 interface.

On the far right, you can see where this sample blew out the inverter as some of the PCB traces have burned and evaporated right off the board. The soldering in general is serviceable, but substandard for a company with the reputation of PC P&C.

Especially when you find something like this. Hello, bad soldering joints. My first sample spent ages in customs hell before I finally got it - I'm calling the cause of failure right now as shipping damage. Sorry, but I want to see the soldering improved so this doesn't happen to Joe Consumer. While you're at it, add some more support for the main PCB, which is only clipped onto the unit's main rails which are braced by nothing but the outer shell. The PCB is completely unsupported in the middle. 48 pounds of UPS and no bracing or middle support for a large main PCB is a bad thing.

Here are the burned traces up close, circled in red. That one in the bottom left corner goes to a connector that connects two of the main transformer windings to the main PCB. One's toasted, the other's ok. The two diodes these traces run to were also ok.

There are actually two thermistors provided for. There's the green one you see above, and a connector for a second one. Hmm... this being PC P&C, I think I'd throw out all pretense to this being silent, plug in that second thermistor, and let it run the fan that's supposed to go up by the inverter heatsinks.

Indeed, the unit's main fan is a Chiefly Choice CC8025S12M medium speed 80mm unit that isn't silent to begin with. It's running all the time, and not very slowly.

And that Chiefly fan was plugged into that white connector, which is thermally controlled and supposedly intended for the fan by the inverter heatsinks. Way to go, guys - you took the inverter cooling fan out and used the connector to cool off the main transformer instead. Sorry, but that ain't right in my opinion. Lose the side fan, put the inverter fan back where it's supposed to be, and maybe these will live longer when Joe Consumer has the power go out while he's pulling the whole 900 watts out of it. And if you must have that side fan anyway, look up at the picture there - there's a second fan header you can use.

Again, nobody's expecting silence from anything PC P&C. Why not just go that extra little bit for reliability's sake? True, Beam-Tech has other more powerful models that could be where the inverter fan gets put in, and maybe this is the way all SS-1500's come from factory, but still... it's PC Power & Cooling we're talking about here and that inverter's part count is a little weak-ish looking to me. You'd think with the reputation PC P&C has, they'd go the extra mile.

Let's go do some scoring.

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