1. Introduction2. Bundle & Cabling3. External4. Internal5. Testing Methodology and Results6. Closing Thoughts7. View All Pages

DeepCool are well known in 2023 for producing a variety of chassis and coolers, and we have reviewed many on KitGuru. They recently released a series of new PCIe Gen 5 ATX 3.0 power supplies in various capacities. Today we look at the 1000 Watt model, called the PX1000G.

There are three models in the PX range, an 850W model, a 1000W model and a 1200W model. For a full list of DeepCool power supplies head over to their website HERE for further details.

According to sales documentation we received from DeepCool they are offering the units in either black or at a £10 premium in white. SCAN have the black version listed at £179.99 HERE but the white version shows NEW but EOL HERE. We would imagine they are awaiting stock and that is just a placeholder.

DeepCool are offering a 10 year warranty with this power supply, for peace of mind.

Key features:

• ATX 3.0 Certified
• Dedicated PCI-e Gen 5.0 power cable (12VHPWR)
• 5 EPS/PCI-e ports
• Up to 300% TGP and 200% Total System Power excursions
• Dual 105C Japanese main capacitor topology
• Silent Fan mode
• 80 PLUS Gold certified
• Cybenetics Certified
• Compact 160mm size
• Available: 850w, 1000w, 1200w
• Warranty: 10 years

The box for the PX1000G is in two parts, an outer white sleeve with a full colour photograph of the supply on it, and underneath is a basic brown box which slides out giving you access to the insides.

The rear of the box highlights some of the main features, including graphs highlighting efficiency levels and fan noise.

Inside the box, the main unit is sandwiched between two heavy duty foam slabs and the cabling is inside a smaller brown box.

A little user guide manual, along with support details are included in a brown sleeved folder.

DeepCool supply the same amount of cables between the 1000W and 1200W units. There are plenty of cables to cater for all build scenarios I could imagine with the SATA cables having 150mm distance between each connector, which is fine.

The unit is very understated and built to a high standard. It measures 150x160x86mm (WxLxH) – reasonably compact to suit a wide variety of case designs.

I quite liked the little engraved ‘DC' logo on the side panels. Again, very understated and a nice touch.

A large 135mm fan is hidden behind a shroud on the top of the power supply. We will take a closer look at this when we open the unit later.

One side of the power supply is home to the power connector, switch and Hybrid mode switch which disables the fan at lower loads.

The other side is home to the modular bay – two rows of labelled connectors to help with the build process. The 12VHPWR connector is coloured blue to stand out from the rest.

The top of the power supply has a sticker which indicates the power delivery across the rails. The supply can deliver 22A on both +3.3V and +5V rails and 83.3A via the +12V rail.

DeepCool have opted for a Hong Hua HA13525H12SF-Z Fluid Dynamic bearing fan. This fan is rated 12V, 0.5A and should last many years.

This is a CWT OEM design which has been adopted in several power supplies lately. It is a solid design. A half bridge topology and an LLC resonant converter feature on the primary side. It is reassuring to see two high grade 105c rated Japanese Nichicon capacitors on the primary side rated 470uf, 420V, for a total of 940uF. Two VRM's are used to generate the minor rails. Soldering quality on the PCB is high with some copper plates used.

Correctly testing power supplies is a complex procedure and KitGuru have configured a test bench which can deliver up to a 2,000 watt DC load.

We test ambient temperatures at 35c in our environment to greater reflect warmer internal chassis conditions.

We use combinations of the following hardware:
• SunMoon SM-268
• CSI3710A Programmable DC load (+3.3V and +5V outputs)
• CSI3711A Programmable DC load (+12V1, +12V2, +12V3, and +12V4)
• Extech Power Analyzer
• Extech MultiMaster MM570 digital multimeter
• SkyTronic DSL 2 Digital Sound Level Meter (6-130dBa)
• Digital oscilloscope (20M S/s with 12 Bit ADC)

• Variable Autotransformer, 1.4 KVA

We test in a single +12V configuration.

DC Output Load Regulation
Combined DC Load	+3.3V		+5V		+12V		+5VSB		-12V
	A	V	A	V	A	V	A	V	A	V
100W	0.90	3.30	0.90	5.02	7.35	12.12	0.50	5.01	0.20	-12.00
200W	1.60	3.30	1.64	5.02	15.13	12.12	1.00	5.01	0.20	-12.02
500W	3.21	3.30	3.24	5.03	38.60	12.07	1.50	5.01	0.20	-12.01
750W	4.03	3.30	4.17	5.02	58.53	12.00	2.00	5.00	0.30	-12.02
1000W	5.45	3.30	5.51	5.02	78.13	11.95	2.50	5.00	0.30	-12.00

The load regulation of this power supply is decent across the board.

DeepCool PX1000G	Maximum Load
	1120W

The power supply managed to deliver 1120W before shutting down safely.

Next we want to try Cross Loading. This basically means loads which are not balanced. If a PC for instance needs 500W on the +12V outputs but something like 30W via the combined 3.3V and +5V outputs then the voltage regulation can fluctuate badly.

Cross Load Testing	+3.3V		+5V		+12V		-12V		+5VSB
	A	V	A	V	A	V	A	V	A	V
885W	2.0	3.31	2.0	5.01	72.0	11.97	0.2	-12.00	0.50	5.00
240W	20.0	3.29	23.0	5.00	2.0	12.09	0.2	-12.00	0.50	5.01

The PX1000G handled our cross load test very well, holding stable results across the range.

We then used an oscilloscope to measure AC ripple and noise present on the DC outputs. We set the oscilloscope time base to check for AC ripple at both high and low ends of the spectrum. ATX12V V2.2 specification for DC output ripple and noise is defined in the ATX 12V power supply design guide.

ATX12V Ver 2.2 Noise/Ripple Tolerance
Output	Ripple (mV p-p)
+3.3V	50
+5V	50
+12V1	120
+12V2	120
-12V	120
+5VSB	50

Obviously when measuring AC noise and ripple on the DC outputs, the cleaner (less recorded) means we have a better end result. We measured this AC signal amplitude to see how closely the unit complied with the ATX standard.

AC Ripple (mV p-p)
DC Load	+3.3V	+5V	+12V	5VSB
100W	5	5	5	5
250W	5	5	5	5
500W	5	5	10	5
750W	10	5	10	10
1000W	10	10	15	10

Ripple noise suppression is really good on both primary and secondary rails.

Efficiency (%)
100W	90.1
250W	90.2
500W	93.1
750W	91.8
1000W	90.4

The efficiency results are excellent, peaking at 93.1% at around 50% load. This drops to around 90.4% efficiency at full load. These are really very positive results for an 80 Plus Gold rated unit.

We take the issue of noise very seriously at KitGuru and this is why we have built a special home brew system as a reference point when we test noise levels of various components. Why do this? Well this means we can eliminate secondary noise pollution in the test room and concentrate on components we are testing. It also brings us slightly closer to industry standards, such as DIN 45635.

Today to test the Power Supply we have taken it into our acoustics room environment and have set our SkyTronic DSL 2 Digital Sound Level Meter (6-130dBa) one meter away from the unit. We have no other fans running so we can effectively measure just the noise from the unit itself.

As this can be a little confusing for people, here are various dBa ratings in with real world situations to help describe the various levels.

KitGuru noise guide

10dBA – Normal Breathing/Rustling Leaves
20-25dBA – Whisper
30dBA – High Quality Computer fan
40dBA – A Bubbling Brook, or a Refrigerator
50dBA – Normal Conversation
60dBA – Laughter
70dBA – Vacuum Cleaner or Hairdryer
80dBA – City Traffic or a Garbage Disposal
90dBA – Motorcycle or Lawnmower
100dBA – MP3 Player at maximum output
110dBA – Orchestra
120dBA – Front row rock concert/Jet Engine
130dBA – Threshold of Pain
140dBA – Military Jet takeoff/Gunshot (close range)
160dBA – Instant Perforation of eardrum

Noise (dBA)
100W	<28.0
250W	<28.0
500W	32.8
750W	37.2
1000W	39.7

The fan doesn't start spinning until around 500 watt to 550 watt load is requested. After 650 watt load it ramps up quickly and quickly becomes audible. At 750 watt load, the fan is quite intrusive and at 1000 watts load it is close to 40 dBa which is noticeably loud.

Temperature (c)
	Intake	Exhaust
100W	37	41
250W	38	45
500W	40	53
750W	45	54
1000W	46	61

The large fan spins up quickly in the last 400 watt of load output, ensuring good airflow across the components. So while loud, the cooling performance is great.

Maximum load	Efficiency
1120W	88.2

Pushing the PSU well above its rated limits generates an efficiency of around 88.2. Not really practical, but interesting nonetheless.

There is no doubt that this modern CWT platform has proven itself in previous reviews, and the DeepCool PX1000G delivers good all round results. It is well put together and UK pricing is competitive for the high levels of power output.

The compact size ensures that this power supply will fit into a myriad of chassis without any installation issues.

Technically, the unit is very solid and no concerning issues were found during testing. It handled the cross load test well, and load regulation was solid, if not class leading. Ripple suppression is a very strong point of the supply with all rails falling well within industry rated parameters.

The only noticeable point to raise would be the high levels of noise under greater loads. The fan profile of this unit is very aggressive, and while this ensures good airflow when loads hit 600 watts and higher, it will be heard over many modern low noise system fans. At around 550 watts load or less, fan noise is less of an issue, and not a concern. Everyone has a different tolerance to fan noise, however I feel a slightly more tweaked, less aggressive profile would have worked in favour for the overall experience.

As stated earlier in the review according to sales documentation we received from DeepCool they are offering the units in either black or at a £10 premium in white. SCAN have the black version listed at £179.99 HERE but the white version shows NEW but EOL HERE. We can only assume this is a placeholder and SCAN are awaiting stock. If we get updates on the pricing and white availability we will update this page later. In closing, pricing seems competitive given the nature of the market in 2023.

The fully modular design, 105c rated Japanese primary stage capacitors, high levels of efficiency and 10 year warranty are sure to give peace of mind to anyone concerning a purchase.

Discuss on our Facebook page HERE.

Pros:

• 10 year warranty.
• Modular cabling
• High build quality.
• Great ripple suppression
• At sub 550w loads, it is quiet.
• Good pricing in the UK.

Cons:

• Will get loud at higher loads.

KitGuru says: The DeepCool PX1000G is a very capable power supply that offers quality delivery for a wide range of gaming and enthusiast systems. During our testing it delivered a solid array of technical results and is backed by a 10 year warranty. Highly recommended.

Become a Patron!