Reviews - Diablotek RPM-1050 1050W
  (By OklahomaWolf on Sat, May-08-2010)

Page 3 -

Of course, there is more yet to this review... good people, I'm not done.
Now it's time for the hot box testing phase - infinitely more fun.
My hot box is an old ATX case with some ductwork running from there,
Back to the SunMoon's exhaust fan itself - that's where it gets its hot air.

There are two fans installed in the hot box to help in case temps shoot to the moon.
I'll turn them both off this time though - this unit shuts down way too soon.
At six hundred watts I'm going to need all the heat I can manage.
I'm certain this unit won't live past these tests... the heat will cause too much damage.

Results from Diablotek RPM-1050 HOT load tests
Test # +3.3V +5V +12V DC Watts/
AC Watts
Eff. Intake/
Exhaust
Simulated system load tests
Test
1
2A 2A 16A 214W/
260W
82.3% 29°C/
31°C
3.38V 5.08V 11.98V
Test
2
4A 4A 31A 407W/
515W
79.0% 34°C/
39°C
3.34V 5.04V 11.81V
Test
3
6A 6A 46A 590W/
775W
76.1% 42°C/
61°C
3.31V 5.01V 11.52V
Test
4
8A 8A 62A FAIL N/A FAIL
FAIL FAIL FAIL
Test
5
11A 12A 78A FAIL N/A FAIL
FAIL FAIL FAIL
Test
CL1
18A 18A 2A FAIL N/A FAIL
FAIL FAIL FAIL
Test
CL2
1A 1A 78A FAIL N/A FAIL
FAIL FAIL FAIL

The cold tests were interesting, you must agree, and these tests were more so.
The unit behaved pretty much like it did for voltages when it was cold.
That is, until the button was pushed for test four, my heart filled with dread.
The unit ran for a second or two or three and then BOOM, it was dead.

A flash of light inside the grille at the exhaust was briefly seen.
A muted pop, the fan did stop, and I hereby took this to mean...
That the unit was gone, no more to run, and I'll take it apart to see,
Just what inside broke down and failed... maybe emit a cackle of glee.

So far I'd have to say this unit has presented with no real surprises.
It does ok as a five hundred watt, but above that it just capsizes.
Now we'll take a look at the scope shots below - so we can find out,
Just how good or bad the outputs were when the unit bugged itself out.

Oscilloscope Measurements - Diablotek RPM-1050

Test #
+3.3V
+5V
+12V
Test
1
Test
2
Test
3
Test
4
Test
5
FAIL
FAIL
FAIL
Test
CL1
FAIL
FAIL
FAIL
Test
CL2
FAIL
FAIL
FAIL

Tests one to three in these here scope shots are actually pretty cool.
Ripple is held well within spec - it's actually making me drool.
But then when you look at test four it's plain that this unit is really maxed.
Ripple on all three main rails is insane - the unit is clearly overtaxed.

3.3 is bad, yes it is, good sir, and 5 volts isn't much better.
But 12 volts, at 664 millivolts takes the cake... a cake made of cheddar.
Had this unit been allowed to stop at test three according to these,
The unit would actually be quite well performing, if I may sit here and tease.

And now it's time to stop all this rhyme because what I'm getting to do,
Is take it apart and see what inside sparked... I'm sure you're curious too.



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