Features and Specifications
Massive PSU can support up to twenty PCs!
If you are looking for the biggest, baddest, power supply on the planet, then we have an exclusive review for you today. But you better have a truck, a couple of strong friends, and very deep pockets!
Miller Electric has been manufacturing large, industrial-grade power supplies since 1929. They are one of the few power supply manufactures who actually design and build their own products, right here in the USA. Miller’s The Power of Blue series of high-capacity power supplies includes models that go all the way up to an astounding 10,500 watts!
While we were not able to obtain a review sample of Miller’s flagship 10.5kW unit, we do have an exclusive review of the Miller XMT 300 PC, which can deliver up to 4,500 watts of pure DC power. Talk about having some extra reserve capacity… wow!
The Miller XMT 300 PC is an external power supply that is about twice the size of a typical mid-tower case and is designed to normally sit on the floor. It features a unique single, high-capacity +12V rail capable of delivering up to 375A (4,500W). A power distribution module mounts inside the PC where the normal ATX power supply would go and breaks down the incoming +12V to the minor rails +3.3V, +5V, etc., along with providing a standard set of cables and connectors. This allows one XMT 300 PC to power multiple PCs at the same time; up to twenty computers.
Miller XMT 300 PC Key Features:
• Monstrous, single rail +12V output (up to 375A peak)
• External main power unit sits on the floor
• Can support multiple PCs at the same time
• #6AWG copper cables for minimal voltage drop
• Automatic fan speed control for optimal cooling and minimal noise
• High efficiency operation (up to 87%)
• Active Power Factor Correction
• 1-Phase or 3-Phase line voltage
• 3-Year warranty
Miller XMT 300 PC Specifications:
Establishing an accurate load is critical to testing and evaluating a PC power supply. PCPerspective’s power supply test bench can place a precise DC load on the PSU under test. Our current suite of tests includes:
• Size and Weight
• DC Load Regulation
• DC Line Regulation
• DC Cross-load (unbalanced load)
• AC Ripple and Noise
• Power Factor
• Efficiency
• Differential Temperature
• Noise
The Miller XMT 300 PC power supply was evaluated on both features and performance. A full range of equipment was used to test the power supply under controlled load conditions. I used everything I had to load down the big Miller PSU unit including all of the new electronic loads, two precision resistor load banks, and my original PSU load testers.
• (2) CSI3710A Programmable DC load (+3.3V and +5V ouputs)
• (4) CSI3711A Programmable DC load (+12V1, +12V2, +12V3, and +12V4)
• (2) Custom-built, precision +12V loads (+12V5 and +12V6)
• FLUKE 87-III True RMS digital multimeter (Accuracy ±0.05%)
• Extech 380803 Power Analyzer (Accuracy ±0.5% of full scale)
• Hitachi V-650F 60 MHz dual trace oscilloscope (Accuracy ±3%)
• FLUKE 52-II digital thermometer (Accuracy ±0.3ºC/0.5ºF)
• Extech Model 407736 digital sound level meter (Accuracy ±1.5 dB)
Awesome April fools joke
Awesome April fools joke
I find the article very well
I find the article very well written. Hope to see more tests like this in the near future 😉 I just hope we won’t have to wait a year before the next one 🙂
I’ve been using one of these
I’ve been using one of these to satisfy the insatiable power hungry needs of my home server. Here are the spec’s:
-MSI Z97 PC Mate motherboard
-Intel Pentium G3258 (undervolted)
-2×4 GB Corsair Ram
-3×2 TB WD green HD running in RAID 5
-No video
-No keyboard
-No mouse
-Miller XMT 300 PC Power Supply
For cooling I run everything in an industrial walk-in freezer. So far the Miller XMT 300 has been doing an ok job supplying power but I’m afraid if I add anymore hard drives (I’m thinking about an ssd), I’ll need to upgrade. Maybe tap into those high power lines running near my property.
Good joke, 8 years old
Good joke, 8 years old though.
Excellent memory! Glad you
Excellent memory! Glad you have been with us all these years.
Didn’t have time to read the
Didn’t have time to read the interview, but I’d imagine you’re trying to run a Titan X in that rig?
Ask Allyn if he can arc weld
Ask Allyn if he can arc weld with this.
Awesome, whack 2 of those
Awesome, whack 2 of those into a large computer case, and you will have enough power to run the next gen AMD FX CPU.
That actually would make a
That actually would make a cool case, I am a welder, to buy the case alone from Miller would be costly, but it does have the wheels spinning in my head to fab something like this.
1994 era 220V ARC welder. I
1994 era 220V ARC welder. I remember seeing this April Fools joke quite a few years ago.
Now I know what I’ll get to
Now I know what I’ll get to power my future 300W APU.
Moar power than what my house
Moar power than what my house can bring in lulz.
All kidding aside, a lot of
All kidding aside, a lot of datacentres are moving to semi-centralised LVDC distribution, with each machine only having a basic DC-DC converter to provide the small amount of 3.3V & 5V needed. Some custom boards (e.g. Open Compute) even have the buck converters on the motherboard itself.
So while it’s a welding supply, very similar designs 9without the variable voltage) are already in use pwoering multiple PCs through 12VDC distribution.
heck 80 lb? not much more
heck 80 lb? not much more than a bag of feed!
i just wonder if it;s enough power for a NUC ?
and will it run CRYSIS???!!
Had me going until the flux
Had me going until the flux capacitor bit.
Still I imagine something like this would be quite useful in a dense datacenter environment. There’s really no need for each node to do its own AC->DC conversion there, so long as the DC leads don’t extend very far. Would at least simplify cooling.