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23rd July 2021 15:28 #1Registered User
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23rd July 2021 17:31 #2Registered User
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23rd July 2021 18:04 #3Banned
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, 50, , .Last edited by Vuicho; 23rd July 2021 at 18:06.
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24th July 2021 21:05 #4
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25th July 2021 09:35 #5Banned
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Cybenetics TPU :
Hardware Busters.During the OPP (cold) evaluation, the PSU died, so I couldn't finish all tests. How did it die? I increased the load on all rails until the PSU shut down as it should. I left it to cool down and tried to restart it after five minutes, but was treated with fireworks and a loud bang. I had pushed its cheap primary switching FETs too far, so Gigabyte should lower the OPP and +12 V OCP triggering points.
LTT:
Further information
The OCP is set at around 130%
The main fets are 2x Jilin Sino-Microelectronics JCS18N50FH (500 V, 11 A @ 100 C, Rds (on): 0.27 ohm)
The failure happened after the unit succesfully shut down on OPP/OCP, where it was turned on again after 5 minutes.
The issue is likely caused by cheap main FETs, a too high set OPP/OCP, a design error or a combination of these.
It does not affect the similarly named GP-APGM or any other Gigabyte units from what is currently knownLast edited by Vuicho; 25th July 2021 at 10:03.
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25th July 2021 12:39 #6




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