The NZXT C1000 uses a modern platform, provided by CWT, which allows it to achieve top performance and also have a quiet operation. The unit is ATX v3.1 compatible, thanks to the 12V-2×6 connector on its modular board, so it is as future proof as it gets.
The NZXT C1000 is included in my best ATX v3.x & PCIe 5.x PSU picks article.
After the powerful NZXT C1500 that I evaluated a while ago, it was time to look at a lower model of the line, the C1000, which can deliver up to 1000W max power continuously. Such a power amount is enough to cover the needs of a potent gaming system, leaving stronger PSUs for special situations where users have either overclocked the PC parts or have more than one GPU installed. Under overclocking conditions, the power consumption can go wild, and the funny part is that you cannot tell how much it will increase since this has to do mainly with the specific part that you will overclock and its behavior under increased clocks and of course, the overclock percentage. This is why you must ensure enough power room in your PSU before you overclock your system. If it doesn’t, you must replace it with a stronger one.
The NZXT C1000 is not quite affordable at 185 dollars. If it used the semi-digital platform of the C1500, this amount would be justified since MCUs are expensive, but this is not the case. The C1000, the C1200, and C850 use CWT’s CXT platform, which uses analog controllers. Only the C1500 has the more advanced CTT platform.
ATX v3.1 1000W PSU Reviews:
- Super Flower Leadex VII PRO 1000W ATX v3.1 PSU Review
- 1st Player NGDP 1000W PSU Review
- Cougar GEX X2 1000W PSU Review
- be quiet! Dark Power 13 1000W PSU Review
- Vetroo 1000W ATX v3.0 PSU Review
- FSP Hydro Ti Pro 1000W PSU Review
- Super Flower Leadex VII Gold 1000W (SF-1000F14XG) PSU Review
- Montech Titan Gold 1000W PSU Review
- be quiet! Pure Power 11 FM 1000W PSU Review
- Thermaltake Toughpower GF3 1000W ATX v3.0 PSU Review
- FSP Hydro G Pro 1000W ATX v3.0 PSU Review
- Sharkoon Rebel P20 1000W ATX v3.1 PSU Review
- Manufacturer (OEM): CWT
- Max Power: 1000W
- Cybenetics Efficiency: [115V] Cybenetics Gold (87-89%) [230V] Cybenetics (89-91%)
- Noise: Cybenetics A (20-25 dB[A])
- Compliance: ATX v3.1, EPS 2.92
- Operating Temperature (Continuous Full Load): 0 – 50 °C (derating from 100% to 80% from 40 °C to 50 °C)
- Alternative Low Power Mode support: Yes
- Power 12V combined: 1000W
- Number of 12V rails: 1
- Power 5V + 3.3v: 120W
- Power 5VSB: 15W
- Cooling: 135mm Fluid Dynamic Bearing Fan (HA13525H12SF-Z)
- Semi-Passive Operation: ✓ (selectable)
- Modular Design: Yes (Fully)
- High Power Connectors: 2x EPS (2x cables), 3x PCIe 6+2 pin (3x cables), 1x PCIe 12+4 pin (600W)
- Peripheral Connectors: 12x SATA (3x cables), 4x 4-pin Molex (1x cable)
- ATX Cable Length: 600mm
- EPS Cable Length: 700mm
- 6+2 pin PCIe Cable Length: 650mm
- 12+4 pin PCIe Cable Length: 650mm
- Distance between SATA / 4-pin Molex: 145mm
- In-cable capacitors: No
- Dimensions (W x H x D): 150 mm x 85 mm x 160mm
- Weight: 1.83 kg (4.03 lb)
- Warranty: 10-years
- MSRP (including VAT): $185
Power Specifications
| Rail | 3.3V | 5V | 12V | 5VSB | ||
| Max. Power | Amps | 22 | 22 | 83.3 | 3 | |
| Watts | 120 | 1000 | 15 | |||
| Total Max. Power (W) | 1000 | |||||
Hello,
I have already returned the Corsair RM1000x PSU.
Now I am the owner of the PSU NZXT C1000 ATX v3.1 EAN 5056547204710, Manufacturer no. PA-0G2BB-EU.
Different PSU, but the problems with standby are about the same.
When the PC power supply is plugged in, the standby time is approximately 22.0 W (at 238 V). In this case, the leakage current is 0.145 A.
When the power supply is turned off by a switch on the PC power supply, the consumption drops to 10.2 W (leakage current 0.070A), but the power supply does not completely shut down.
The load for the PSU is a motherboard with a processor, RAM, M.2 SSD and fans.
My energy meter (Brennenstul EM240 DE3698) is not completely accurate, the deviation is 1 volt (0.5% error) when measuring a voltage of about 240 volts. Its verification in a load in the form of a LED lamp (HG10556B) for 470 lm with a power of 4.2 watts is 100% the same and is 4.2 watts. Voltage control was carried out with fairly accurate BRYMEN BM235 and KAIWEETS HT206D multimeters.
We are not talking about 0.1 watts, as stated in the Cybenetics certificate that Standby Power Consumption is equal to 0.0691W (230V), but 22 watts! That is, the excess is more than 200 times.
In 2023, the following tightening came into force Commission Regulation (EU) 2023/826 of 17 April 2023 from 2025, devices must not consume more than 0.5 Watts in standby or in off mode.
I have a question, how does the manufacturer comply with the current certificate?
Does any authority control the import of such products into the European Union?
Best regards
First of all, vampire power is measured with the PSU itself, NOT connected to anything else? Vampire power is the power that the PSU’s internal circuits drawn while it is in standby (only 5VSB).
Hello I would like to know how to choose between NZXT C1000 ATX3.1 and CORSAIR RM1000X ATX3.1 and MSI MPG A1000G ATX3.1 In your opinion these three are better？
Hello,
In a previous article you’ve mentioned that “ATX v3.1 PSUs are NOT ATX v3.0 because of the lower hold-up time”. However from my research, most manufacturers describe that the new spec is backward compatible. Maybe they are referring to connector compatibility, but given the results for this PSU, which provides hold up time around 30 ms, do you think that it will be possible to pair it with existing ATX3.0 GPUS until upgrading to NVidia 50x series or similar?
Thanks in advance for your response.
I don’t know to what they refer, but the fact is that the ATX v3.0 spec is tougher in hold-up time. Also this PSU yes, you can use it with any upcoming GPU, since the cable remains exactly the same (12VHPWR or 12V-2×6)
cables are the same, the 12+4pin connector cable. Hold-up time is lower in ATX v3.1 standard
Would this be a better choice than the Super Flower VII Gold?
Hi! Thanks for your reply! I appreciate it!
Very impressive work! Thank you very much! 🙂
I was wondering if you heard anything about the Straight Power 12 from be quiet? I have barely heard about this unit and I was hesitating between the Straight Power 12, a Corsair RMx/e or a NZXT C Gold for an RTX 4070 ti Super + i5-14600K system (850 – 1000W range).
Thank you againt!
I haven’t checked it so far, SP 12.
Hi! Thanks for your reply! I appreciate it!