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Rexus PST-3 Digital Power Supply Tester with LCD
A quick and easy solution for troubleshooting your PSU issues
The Rexus PST-3 power supply tester is a must-have for DIY enthusiasts or those working on computers for a living. It connects to the PSU's output connectors, measures the voltage, and displays the results on a backlit LCD screen - instead of having just LEDs indicating the status. It supports today's popular connectors, including 20+4-pin, 4+4-pin for CPU, 6-pin PCIe, 4-pin Molex, SATA and 4-pin fan power connectors. It also displays the Power Good (PG) value on the lower right hand corner. It is the delay in time between the DC rails stabilizing and the Power Good signal being issued for the system to boot, without this signal a system will be unable to boot. Plus, this gadget is compact, lightweight, and rugged built with metal housing, making the Rexus PST-3 power supply tester with LCD a durable and portable solution you can count on to troubleshoot power supply issues at home or in the field.
How to use
When abnormal happened, it will alarm and relative readouts blink on the screen.
Please Note:
Each voltage normal range:
The -5V DC output is taken off from Intel ATX12V design guide since the 1.2 version.
Pros:
Easily-read display, not merely a black-and-silver LCD image, but black-against-bright blue for clarity.
1-- Precisely cut, solid connectors for all standard cables, never too tight or too loose
2-- Sturdy metal case, slim and pocket-size
3-- Safe working range violation-- beep alarm indicates when voltage falls below a safe/acceptable minimum or exceeds a safe/acceptable maximum specific to a connector (from -+5% to -+8%, depending on connector), which is a tremendous aid to identify an intermittently failing PSU circuit, but without need to stand over the unit tested, meter in hand, waiting for the event.
4-- Abnormal voltage detection-- display indicates when voltage falls below a connector-specific low minimum or exceeds a connector-specific high maximum, and flashes "LL" or "HH" on that abnormal voltage
5-- Display indicates "PowerGood" (PG) status in milliseconds, with alarm if the PG value falls below or exceeds the range of 100 to 900ms
Meter is ideal for routine checks of test and reserve/spare PSUs, to prevent damage before connecting valuable equipment and possibly damaging disk data. Without this meter, the only status indication is the wryly-labled "smoke test", which indicates possible equipment damage
Cons:
None, with Possible confusion (to new users) on the difference between the alarm for violation of safe working range and a flashing indicator for abnormal voltage. To a new user, the two may seem the same, but
1-- the safe working range violation beep alarm occurs as a failing PSU value briefly enters a damaging range one or more times in a running, real-time test for random events
2-- the abnormal voltage display flashes after any single event, indicating definite damage/malfunction in the PSU
Other Thoughts: This product reviewed by "Definitely Ambivalent", a purchaser and satisfied user (after one week)
Pros: Works as it should
Cons: None
Other Thoughts: Handy tool to have.
Pros: Good device.
Cons: No latch indicator on 20/24 pin connector.
Other Thoughts:
The supplied printed instructions were O.K., but viewing the PST-3 YouTube videos made a big difference in understanding the various PST-3 connectors and the LCD display.
The 20/24 pin connector does not indicate which is the latch side. Can be confusing the first time inserting a 20-pin connector.
Accidentally bounced the PST-3 off a hard tile floor and it survived with no damage.
Pros: Simple
Cons: Limited instructions, YouTube was helpful.
Pros: Works VERY well! Glad I purchased this item.
Cons: None!
Pros: Good readouts
Cons: n/a
Pros: Works Very Well, Digital Readout ,Easy to Use. Excellent Price.
Cons: None
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Pros: A nice LCD that displays useful information about the PSU being tested.
Cons: None that I know about.
Other Thoughts: Whenever I dont test a PSU it comes back to bite me in the end. Now I test any new PSU for confidence. The next time I am debugging a flakey system I hope I remember to test the PSU first. If you are running a serious studio / workplace that uses computers that you are maintaining, you need this, or something like this, in your toolkit.