Posted July 9, 2021 Hello, i have an HP Prodesk 600 G1 Tower and recently i recieved a gtx 660 and wanted to upgrade, but the problem is that the psu doesn t have the 6 pin connector and too weak (standard hp psu). So i bought a brand new PSU but then i realized that the motherboard doesn t have a 24 pin connector and i bought an adapter for that, i plugged it into the 24 pin put the connectors in place and when i turn on my pc it started beeping and the power button was red, but the pc didn t start up or anything. I put the old psu back and worked perfectly fine. Anyone can help me with that. And another question, My motherboard has an 4 pin connector for the cpu and i plugged with the 8 pin from the new psu (it can be divided into 4). Thank you for the time reading this (also sorry about my english, tried my best). Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted July 9, 2021 if the old power supplies ok you maybe getaway of using a Molex to 6 Pin adaptor those prebuilt can be really weird around power supplies Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted July 9, 2021 Author Yeah, but the old PSU is not powerful enough for the 660 from what i have read (it s a 300W). Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted July 9, 2021 Check to make sure none of the connectors on the motherboard are proprietary, so that it has a 4 pin CPU and 20 or 24 pin motherboard connector. If no proprietary connector, buy like a 450w PSU with a 6 pin. Laptops for sale: [FS] [US] Vintage laptop collection + parts - Classifieds - Linus Tech Tips Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted July 9, 2021 Author 2 minutes ago, Mel0nMan said: Check to make sure none of the connectors on the motherboard are proprietary, so that it has a 4 pin CPU and 20 or 24 pin motherboard connector. If no proprietary connector, buy like a 450w PSU with a 6 pin. The PSU that i bought is a 500w it has a 24 pin, 8 pin , 6 pin. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted July 9, 2021 2 minutes ago, rottenflash34 said: The PSU that i bought is a 500w it has a 24 pin, 8 pin , 6 pin. OK that is good. How many pins does the motherboard connector have? If you want you can use your new PSU just for the GPU... Laptops for sale: [FS] [US] Vintage laptop collection + parts - Classifieds - Linus Tech Tips Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted July 9, 2021 Author The motherboard main power connector is a 6 pin and this white thing. Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
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