I have a corsair power supply.The computer will only turn on if I switch the power supply off and back on. Then I press the PC power button. If I don't do this and I shut down the PC and turn it on without switching off and on the power supply hardly anything turns on the computer. Now I found the problem However, I cannot Identify the IC or the chip. I'm new at identifying these sort of things. Which is why I'm asking if anyone has seen this chip before. The Chip or IC says G7 or something as a logo and the code next to that is I think 60339 or 60335. I'm still unsure. I'm trying to buy a new one that I may repair this power supply. I have a picture of the IC if anyone is able to identify it.

IC or chip?

update 8-100-2017 10:16 AM :
Cleaned up the IC a bit it doesn't seem to be the problem. The last picture made it look terribly damaged. So my apologies on that last picture. Not so sure this is the problem but I got the clear picture now. Cleaned Up

update 2017 Aug 10 :
I'm scraping the power supply and getting another one.


closed as off-topic by Bimpelrekkie, Brian Carlton, Voltage Spike, Nick Alexeev Aug 10 '17 at 22:25

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions on the repair of consumer electronics, appliances, or other devices must involve specific troubleshooting steps and demonstrate a good understanding of the underlying design of the device being repaired. See also: Is asking on how to fix a faulty circuit on topic?" – Bimpelrekkie, Brian Carlton, Voltage Spike, Nick Alexeev
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    \$\begingroup\$ The logo is ST, for ST Microelectronics. It's extremely difficult to make out what the rest of it is. Do you have a better resolution picture? \$\endgroup\$ – Los Frijoles Aug 10 '17 at 3:52
  • \$\begingroup\$ thats how the chip looks like the chip is all messed up. i wish i could better view. \$\endgroup\$ – medicrain Aug 10 '17 at 4:25
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    \$\begingroup\$ If you shine a light on it from an angle and take a picture from a perpendicular angle, it may highlight any laser etching. Also, your camera has focused on the PCB itself rather than on the top of the chip (the traces are very clear, but the edges on the chip are extremely undefined). \$\endgroup\$ – Los Frijoles Aug 10 '17 at 4:27
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    \$\begingroup\$ What's the PSU model? \$\endgroup\$ – KingDuken Aug 10 '17 at 5:09
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    \$\begingroup\$ Could you wash it up with some solvent before taking the picture? Also, dual comparators as LM393 are frequently used in PSUs... \$\endgroup\$ – Ale..chenski Aug 10 '17 at 6:30

That part is a LM393. SO8 package, made by ST Microelectronics.

This part is not particularly likely to fail during use, and I wouldn't expect its failure to cause the symptoms you're describing.


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