Question Gpu shuts psu when connected 6pin

fazi_54

Distinguished
May 20, 2013
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I have a amd power colour r9 290 triple fan..
Yesterday while playing pummel party it shutdown completely and no response whatsoever by power button.. then after further troubleshooting and psu change i came to know that when i unplugged the 6 pin (although it runs on 8pin+6pin) psu turns on and pc runs without display.. but when i plug the 6pin it shuts and needs to be disconnected from Main power for a few seconds and runs without display