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PSU tester vs PSU PG light

post #1 of 7
Thread Starter 
I just got a new tpx-775 thermaltake PSU and before putting it into my system decided to test it. When I plugged it into my PSU tester and turned it on the PG light on the PSU flashed red and then turned green, but the PG reading on my PSU tester continued to give a reading of HH and made noise. Should I trust the PSU itself or should I trust the readings off of my PSU tester? Do I need to RMA my new PSU?
    
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post #2 of 7
Kind of doubt it, it's made by CWT. Make sure you have the proper connections connected while testing. If you're in doubt use a multi-meter to measure voltages. What PSU tester are you using? I heard the only way to test PSU's properly is through a $5,000 machine.

http://www.sunmoontec.com/cpzs.asp?MidCode=SM-8800%B6%E0%B9%A6%C4%DC%EB%8A%D4%B4%9Cy%D4%87%83x

But yeah that's not going to happen.
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post #3 of 7
just put it in your rig and enjoy it till it tells you otherwise lol
post #4 of 7
Thread Starter 
I'm using this psu tester:

http://www.microcenter.com/single_product_results.phtml?product_id=0317406

It gives a rating of how long it takes for power to stabilize in a value from ~0-990ms and HH otherwise. On other PSUs I have they get proper PG ratings around 300ms but this one gets HH. The question is if it's safe to use or will it run the risk of destroying my rig?
    
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post #5 of 7
Test the connections with a multimeter, and find out the exact fluctuation to see for yourself.
post #6 of 7
Thread Starter 
I'm not sure which pins to test exactly and the reading that is in question isn't if the voltages are in range but if they are stable... How should I go about testing this?
    
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post #7 of 7
I know this is an older thread, but for any future viewers, YES you can trust this particular power supply tester. I use it all the time. The cheaper LED only ones do a fine job for the most part, but this one in particular tests the PG for either HH or LL.

Using a multimeter would basically be equivalent to using the cheaper LED tester as it does not test for PG.

If the tester is alarming for either HH or LL, It's a bad power supply. I have a power supply now that tests good with an LED only type (and would a multimeter), but alarms for HH on the PG test with the better tester. When plugged into a computer, anything USB is not recognized.
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