Unboxing, product pictures and scope of delivery
All samples of the Rebel P20 arrived in a plain white box and not in the normal sales packaging, so here is a video for you to see.
The dimensions of the power supply are compact, which has an impact on noise, as the small board has to accommodate the parts required to deliver 1200W of power. Fortunately, the fan grille is not restricted, which increases the fan’s airflow.
Cable
The modular panel on the back houses ten sockets, including a native 12V-2×6.
In tabular form, it reads like this:
Modular Cables | ||||
Description | Cable Count | Connector Count (Total) | Gauge | In Cable Capacitors |
---|---|---|---|---|
ATX connector 20 4 pin (600mm) | 1 | 1 | 18AWG | No |
4 4 pin EPS12V (700mm) | 2 | 2 | 18AWG | No |
6 2 pin PCIe (550mm 150mm) | 2 | 4 | 18AWG | No |
12 4 pin PCIe (600mm) (600W) | 1 | 1 | 16-26AWG | No |
SATA (500mm 150mm 150mm) | 1 | 3 | 18AWG | No |
SATA (500mm 150mm 150mm 150mm) | 2 | 8 | 18AWG | No |
4-pin Molex adapter ( 150mm) | 1 | 1 | 18AWG | No |
AC Power Cord (1360mm) – C13 coupler | 1 | 1 | 18AWG | – |
Protection circuits
The 12V OCP trip points are both below 130%, which I think is a normal value, but they are identical. The hot trigger point should be significantly lower to effectively protect the power supply. The OCP trip points on the secondary rails are also similar and set very high, especially the 3.3V trip point. There is no reason for 29A on this rail! Fortunately, the OPP trip point is greatly affected by hot conditions, so there is adequate protection for the device.
OCP (Cold @ 30°C) | 12V: 129.4A (129.4%), 12.17V 5V: 30.3A (151.5%), 5.003V 3.3V: 29.1A (145.5%), 3.305V 5VSB: 6.4A (213.33%), 4.92V |
OCP (Hot @ 42°C) | 12V: 129.4A (129.4%), 12.188V 5V: 30.2A (151%), 5.011V 3.3V: 29.1A (145.5%), 3.309V 5VSB: 6.4A (213.33%), 4.922V |
OPP (Cold @ 29°C) | 1667.13W (138.93%) |
OPP (Hot @ 43°C) | 1302.96W (108.58%) |
OTP | ✓ (140°C @ 12V heat sink) |
SCP | 12V to Earth: ✓ 5V to Earth: ✓ 3.3V to Earth: ✓ 5VSB to Earth: ✓ -12V to Earth: ✓ |
PWR_OK | Proper operation |
NLO | ✓ |
Fan Failure Protection | ✗ |
SIP | Surge: MOV Inrush: NTC Thermistor & Bypass relay |
On the next page we go inside, please turn the page!
- 1 - Introduction, overview and technical data
- 2 - Unboxing, cables and protective circuits
- 3 - Teardown: Topology, components, processing
- 4 - Load Regulation, Ripple Suppression
- 5 - Transient Response
- 6 - Hold-Up Time, Timings, Inrush-Current
- 7 - Average Efficiency and PF
- 8 - Noise and fan speed
- 9 - Summary and conclusion
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