Inline PSU Tester
– User’s Guide
Page 1
Users Guide
Model PM123 Rev 1
Document Edition:
1.3
Date:
1 November 2019
Web site:
www.passmark.com
Page 1: ...Inline PSU Tester User s Guide Page 1 Inline PSU Tester Users Guide Model PM123 Rev 1 Document Edition 1 3 Date 1 November 2019 Web site www passmark com...
Page 2: ...tion 11 Configurations 11 LCD Display 12 Keypad 13 Input and output connectors 14 Cables 15 How to Test a power supply unit 16 Monitoring Software 17 Main Window 17 Configuration Window 19 Driver Inst...
Page 3: ...r drawn from each voltage rail Measure the total power drawn from the power supply Test for ripple on main voltage rails 1 Measure and check Power on Time T1 Rise Time T2 PWR_OK delay T3 and Power dow...
Page 4: ...matic failure of the device under test you may see smoke coming from the power supply or inside the case or smell a burning In this case unplug the power supply from the wall Do not touch the PSU or t...
Page 5: ...nd a power supply There is also another specification called ATX12V which only describes the PSU Major changes in ATX ATX12V revisions ATX Version Introduction date Main changes from previous version...
Page 6: ...V 1 13 3 3 V Orange 3 3 V sense Brown Orange 3 3 V 2 14 12 V Blue Black Ground 3 15 Ground Black Red 5 V 4 16 Power on Green Black Ground 5 17 Ground Black Red 5 V 6 18 Ground Black Black Ground 7 19...
Page 7: ...rds have 6 pin PCI Express power connectors and others have 8 pin connectors Many power supplies come with a 6 2 PCI Express power cable which is compatible with both kinds of graphic cards The 6 2 PC...
Page 8: ...3 14 3 30 3 47 Volts 12VDC 10 10 80 12 00 13 20 Volts 5VSB 5 4 75 5 00 5 25 Volts Table 6 Output Ripple Noise The output ripple noise requirements listed in Table 2 Output Max Ripple Noise mVpp 12V1D...
Page 9: ...s 300 ms T3 500 ms Power down warning T6 During power down the PWR_OK signal should be asserted low at least 1ms before the 12VDC 5VDC and 3 3VDC outputs reach their under voltage thresholds T6 1ms Ra...
Page 10: ...Us It certifies products that have more than 80 energy efficiency at 20 50 and 100 of rated load and a power factor of 0 9 or greater at 100 load Such PSUs waste 20 or less electric energy as heat at...
Page 11: ...motherboard This configuration is recommended for the production line testing or when the PC doesn t boot Figure 6 Inline The PSU Tester is connected to a power supply and a motherboard The inline mod...
Page 12: ...ows PASS when all voltages within the regulation ranges Timings Shows PASS when all timings are met N A means some of the timings are not yet measured Timings are calculated during power up and power...
Page 13: ...sn t measure the actual voltages on the SATA connector instead it displays the voltage on 12V1DC 5VDC 3 3VDC as these rails are almost always connected to SATA voltage rails Ripple 24 Pin This page di...
Page 14: ...d with In suffix should be connected to PSU The output terminals which are only used in inline configuration are marked with Out suffix and should be connected to motherboard The SATA In input is a bi...
Page 15: ...ter comes with 5 cables A USB 2 0 A to B cable for connecting the tester to PC Figure 11 A 24Pin female to 20 4Pin male for connecting the 24 Pin Out terminal to motherboard Figure 12 An EPS 8Pin fema...
Page 16: ...corresponding In terminals of the PSU Tester Note that some power supplies have 8 pin 6 2Pin detachable PCIe cable In this case detach the extra 2 pins and connect the 6 pin side 4 Plug the AC power c...
Page 17: ...wer cord into the main 5 Turn on the power supply by setting the I O switch on the back panel to the I stand 6 Turn on the machine using the standby button from the computer case 7 Using the Up Down b...
Page 18: ...one or two power cycles are required for the value to be calculated N A means that the measurement is not available Overall Status This section shows Power Status Total Power and the status of Voltage...
Page 19: ...s the differences between the Strict and Loose modes Strict Loose DC Regulation range for 12V1 12V2 5V and 3 3V rails 10 10 DC Regulation range for 12V rail 10 15 T2 Min Slew Rate According to the spe...
Page 20: ...to the USB port on the computer to be tested The device LCD should turn on and display the default screen Step 2 Install the device driver Download the latest driver from the following address and ext...
Page 21: ...in Inline mode Measurement Voltages 12V1DC 12V2DC 12V CPU 5VDC 3 3VDC 5VSB 12VDC 12VDC PCIe Currents 12V1DC 12V2DC 12V CPU 5VDC 3 3VDC 5VSB 12VDC PCIe 12VDC SATA 5VDC SATA 3 3VDC SATA Ripple 12V1DC 1...
Page 22: ...0 C Usage Temperature 0 C to 40 C Part number PM123 RoHS Lead free Yes Table 13 The PSU Tester firmware is software upgradeable in the field Software Compatibility Window 7 8 10 are supported Windows...
Page 23: ...sults Figure 18 Voltages were within the specification except for the 12V rail which went outside approved limits when the PSU was under load The 12V rail is not used very often especially in new moth...
Page 24: ...x400 pixels Mode Output Power Load Input Power Efficiency Idle 49W 9 65W 75 Load 1 110W 20 133W 82 Load 2 279W 51 319W 87 Table 15 The efficiency measurements confirm that the PSU meets the 80 Plus Br...
Page 25: ...sue as the voltage difference is small 300mV and the duration is very short 400 microseconds This failure alone is not enough to render this PSU as faulty or not usable Figure 21 All voltages were wit...
Page 26: ...y Claimed power specifications Rail 3 3V 5V 12V 12V 5VSB Max Power Amps 12A 16A 30A 0 3A 2A Watts 39 6W 80W 360W 3 6W 10W Total Max Power W 360W Table 18 Test Results Figure 22 Voltages were within th...
Page 27: ...ow size 320x200 pixels Test load 3 CPU Max heat 16 Threads and 3D Graphics test window size 640x480 pixels Mode Output Power Load Input Power Efficiency Idle 51W 14 65W 78 Load 1 76W 21 91W 83 Load 2...
Page 28: ...ltages were within the specification except for the 12V rail which went outside approved limits when the PSU was under a heavy load 300W Efficiency Using BurnInTest we put system under load by running...
Page 29: ...ely turned it off from the wall This PSU was being used for a few years and was replaced as the PC used to shut down after a few minutes Figure 26 Disclaimer This product is not warranted nor intended...
