[SOLVED] Computer wont start when Sata power cable olugged to PSU

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MadAlucard

Commendable
Sep 9, 2016
4
0
1,510
Hi everyone,
So my computer always performed like a beast (i7 4770k Maximus Hero VI sapphire tri-x 290 8 go GSkill 2400 Mhz PSU XFX 850 pro Modular) until today, everything was running fine then i heard a *Boom*, electricity went out of the sector, i got it back then my computer didnt wanna start again, so i guessed the PSU was fucked, then i could manage to get another PSU, a Corsaire 850, i managed to change them,then the pc started fine with the motherboard, the cpu and graphic card alimented by the PSU,but as soon as i try plugging a sata power to my PSU the computer just wont start, the lights goes on for a sec and the fan start turning then stops.

I tried every single port of the PSU, i changed the cables,everything but nothing, not to mention i once tried to plug it directely to the PSU while the computers running and one of the sata port started to smoke so i shut the computer down.

Any idea?help?Advice? Do i need to try a different PSU ?(i will need to buy one.....) is it a problem with the sata that prevents the computer to get power?

Please help, i am going nuts and this shit is my life :(
Thanks in advance
 
Solution
CountMike
You have to watch those cables and connectors on the PSU side with modular PSUs. Although connectors are made to same standards shape vise (Amphenol, Molex etc) and not used with computers only, polarity and wire placements might not be to any standard but what PSU manufacturer may deem appropriate.
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M

MadAlucard

Commendable
Sep 9, 2016
4
0
1,510
So i was able to solve this issue....

It was pretty simple indeed....i used the Sata power cables of my old PSU, and then i managed to get the Sata power cables that came with the new PSU i mounted and it worked, it seems that EVEN IF both PSU's have same Watts, in my case 850 W, they come with cables that output different voltage, so you absolutely need to use only the Sata power cables that comes with the PSU, others wont work.... And i found a thread in Reddit that spoke about this and explained that they are not universal, so that's why i checked for the ones that came with it (i just borrowed it and didnt took the cables tought mine were the same, like, universal, like Usb and stuff...but it's not !).

Sadly by trying to force my HDD to boot with the the faulty cables, its blown, i am still trying to fix it, i need a new Hdd circuit, but everything else is working just fine now.

I hope you find a solution to your problem.
 
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CountMike

CountMike

Titan
Oct 31, 2015
33,771
3,150
147,990
You have to watch those cables and connectors on the PSU side with modular PSUs. Although connectors are made to same standards shape vise (Amphenol, Molex etc) and not used with computers only, polarity and wire placements might not be to any standard but what PSU manufacturer may deem appropriate.
 
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Solution
B

backb0nelive

Aug 8, 2018
3
0
10
I´m Finish mount my pc and with HDD the pc wont star and not switch on, if i remove the HDD the pc starts normally and enter on bios, already trie with 1HDD sata and 1 SSD. Need Help

ASUS Prime z370-A
i5 8600k
Corsair RM750x
16gb Ram G.skill 3000mhz
Cooler Enermax
SSD kingston
 
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