1st Player Steampunk PS-850SP 850 W Review

Name: 1st Player Steampunk PS-850SP 850 W
Brand: 1STPLAYER
Price: 90 USD

crmaris

on Jan 5th, 2022,

in Power Supplies.

Manufacturer: 1STPLAYER

Fan Noise »

Efficiency

Using the results we gathered so far, we plotted a chart showing the PSU's efficiency at low loads and loads ranging from 10 to 110 percent of the maximum-rated capacity.

Efficiency is decent but not competitive for Gold efficiency standards.

10%–110% Load Testing

These tests reveal the PSU's load regulation and efficiency levels under high ambient temperatures and show how the fan-speed profile behaves under harsh operating conditions.

Load Regulation & Efficiency Testing Data - 1st Player Steampunk Gold 850W
Test	12V	5V	3.3V	5VSB	Power (DC/AC)	Efficiency	Fan Speed	PSU Noise	Temp (In/Out)	PF/AC Volts
10%	5.246A	1.957A	1.976A	0.981A	85.006W	86.344%	0 RPM	<6.0 dB(A)	38.27°C	0.855
10%	12.085V	5.11V	3.34V	5.095V	98.45W	86.344%	0 RPM	<6.0 dB(A)	33.21°C	230.22V
20%	11.516A	2.94A	2.972A	1.182A	169.955W	90.997%	953 RPM	27 dB(A)	34.29°C	0.931
20%	12.075V	5.102V	3.331V	5.077V	186.771W	90.997%	953 RPM	27 dB(A)	39.63°C	230.22V
30%	18.130A	3.431A	3.473A	1.384A	254.959W	92.183%	1042 RPM	30 dB(A)	35.68°C	0.955
30%	12.075V	5.101V	3.326V	5.06V	276.582W	92.183%	1042 RPM	30 dB(A)	41.32°C	230.22V
40%	24.771A	3.927A	3.977A	1.587A	340.053W	92.395%	1081 RPM	30.9 dB(A)	35.84°C	0.966
40%	12.065V	5.093V	3.319V	5.043V	368.041W	92.395%	1081 RPM	30.9 dB(A)	41.83°C	230.22V
50%	31.067A	4.913A	4.985A	1.791A	424.964W	92.305%	1177 RPM	33.5 dB(A)	36.17°C	0.973
50%	12.053V	5.089V	3.31V	5.024V	460.392W	92.305%	1177 RPM	33.5 dB(A)	42.38°C	230.22V
60%	37.345A	5.901A	5.998A	1.998A	509.501W	92.011%	1303 RPM	36.5 dB(A)	36.94°C	0.977
60%	12.042V	5.084V	3.301V	5.006V	553.738W	92.011%	1303 RPM	36.5 dB(A)	43.54°C	230.22V
70%	43.701A	6.89A	7.017A	2.207A	594.865W	91.535%	1540 RPM	41.2 dB(A)	41.4°C	0.98
70%	12.030V	5.081V	3.292V	4.986V	649.876W	91.535%	1540 RPM	41.2 dB(A)	48.49°C	230.22V
80%	50.054A	7.879A	8.037A	2.315A	679.599W	90.975%	1614 RPM	42.9 dB(A)	43.15°C	0.982
80%	12.021V	5.078V	3.284V	4.969V	747.018W	90.975%	1614 RPM	42.9 dB(A)	50.67°C	230.22V
90%	56.824A	8.375A	8.541A	2.424A	765.046W	90.359%	1614 RPM	42.9 dB(A)	45.19°C	0.984
90%	12.011V	5.075V	3.278V	4.951V	846.677W	90.359%	1614 RPM	42.9 dB(A)	53.41°C	230.22V
100%	63.539A	8.873A	9.077A	2.533A	849.752W	89.733%	1616 RPM	42.9 dB(A)	46.02°C	0.985
100%	12.001V	5.073V	3.271V	4.935V	946.976W	89.733%	1616 RPM	42.9 dB(A)	55.81°C	230.22V
110%	70.005A	9.866A	10.208A	2.541A	935.138W	88.944%	1622 RPM	42.8 dB(A)	46.12°C	0.986
110%	11.990V	5.069V	3.261V	4.921V	1051.382W	88.944%	1622 RPM	42.8 dB(A)	56.48°C	230.22V
CL1	0.116A	11.823A	12.103A	0A	101.298W	83.442%	1201 RPM	33.9 dB(A)	41.94°C	0.885
CL1	12.072V	5.092V	3.28V	5.098V	121.4W	83.442%	1201 RPM	33.9 dB(A)	47.72°C	230.22V
CL2	0.116A	19.615A	0A	0A	101.412W	82.945%	1082 RPM	30.9 dB(A)	40.15°C	0.886
CL2	12.076V	5.099V	3.346V	5.108V	122.264W	82.945%	1082 RPM	30.9 dB(A)	47.1°C	230.22V
CL3	0.115A	0A	20.346A	0A	67.379W	75.393%	1020 RPM	29.1 dB(A)	39.03°C	0.839
CL3	12.073V	5.103V	3.243V	5.104V	89.37W	75.393%	1020 RPM	29.1 dB(A)	47.45°C	230.22V
CL4	70.697A	0A	0A	0A	849.534W	90.459%	1610 RPM	42.7 dB(A)	41.18°C	0.985
CL4	12.017V	5.083V	3.323V	5.039V	939.139W	90.459%	1610 RPM	42.7 dB(A)	51.39°C	230.21V

The PSU delivers its full power under tough conditions without any problems. That having been said, I don't recommend pushing it this hard at over 40 °C for prolonged periods of time because its fan will struggle.

Light-Load Testing

In the following tests, we measure the PSU's efficiency at loads significantly lower than 10 percent of the maximum capacity—the lowest load the 80 PLUS standard measures. This is important for when a PC is idle with its power-saving features turned on.

Light Load Efficiency - 1st Player Steampunk Gold 850W
Test	12V	5V	3.3V	5VSB	Power (DC/AC)	Efficiency	Fan Speed	PSU Noise	Temp (In/Out)	PF/AC Volts
20W	1.228A	0.489A	0.492A	0.195A	20.005W	65.546%	0 RPM	<6.0 dB(A)	33.62°C	0.561
20W	12.095V	5.114V	3.35V	5.13V	30.521W	65.546%	0 RPM	<6.0 dB(A)	31.48°C	230.23V
40W	2.704A	0.684A	0.69A	0.293A	40.003W	78.228%	0 RPM	<6.0 dB(A)	34.7°C	0.715
40W	12.093V	5.115V	3.349V	5.124V	51.137W	78.228%	0 RPM	<6.0 dB(A)	31.78°C	230.22V
60W	4.180A	0.88A	0.887A	0.391A	60.003W	83.569%	0 RPM	<6.0 dB(A)	35.52°C	0.794
60W	12.090V	5.114V	3.347V	5.117V	71.801W	83.569%	0 RPM	<6.0 dB(A)	32.03°C	230.22V
80W	5.653A	1.076A	1.085A	0.489A	79.956W	86.275%	0 RPM	<6.0 dB(A)	36.39°C	0.845
80W	12.087V	5.108V	3.345V	5.113V	92.676W	86.275%	0 RPM	<6.0 dB(A)	32.35°C	230.22V

I would like to see more than 70% efficiency with 20 W load and efficiency over 80% with 40 W.

Super Light-Load Testing

We measure the PSU's efficiency with a 10 W load if its maximum power is 500 W or less in the following tests. If the PSU is stronger, we apply 2% of its maximum-rated-capacity load.

Super-Light Load Efficiency - 1st Player Steampunk Gold 850W
12V	5V	3.3V	5VSB	Power (DC/AC)	Efficiency	Fan Speed	PSU Noise	Temp (In/Out)	PF/AC Volts
1.248A	0.215A	0.215A	0.045A	17.149W	63.729%	0 RPM	<6.0 dB(A)	35.44°C	0.838
12.094V	5.116V	3.353V	5.135V	26.909W	63.729%	0 RPM	<6.0 dB(A)	30.54°C	115.12V

The PS-850SP achieves over 60% efficiency with 2% load; however, Intel requires above 70% efficiency with 2% load.

5VSB Efficiency

5VSB Efficiency - 1st Player Steampunk Gold 850W
Test #	5VSB	Power (DC/AC)	Efficiency	PF/AC Volts
1	0.1A	0.514W	69.077%	0.029
1	5.14V	0.744W	69.077%	230.24V
2	0.25A	1.284W	76.449%	0.065
2	5.136V	1.68W	76.449%	230.25V
3	0.55A	2.82W	80.573%	0.129
3	5.126V	3.5W	80.573%	230.25V
4	1A	5.113W	81.660%	0.209
4	5.112V	6.261W	81.660%	230.26V
5	1.5A	7.646W	81.476%	0.276
5	5.097V	9.384W	81.476%	230.25V
6	2.5A	12.666W	81.193%	0.358
6	5.065V	15.6W	81.193%	230.25V

The 5VSB rail is efficient.

Power Consumption in Idle and Standby

Idle / Standby - 1st Player Steampunk Gold 850W
Mode	12V	5V	3.3V	5VSB	Power (AC)	PF/AC Volts
Idle	12.093V	5.11V	3.353V	5.141V	9.035W	0.257
Idle	12.093V	5.11V	3.353V	5.141V	9.035W	230.24V
Standby					0.099W	0.004
Standby					0.099W	230.24V