[SOLVED] psu-graphics card adaptor

[themourqsreks]

just got my xfx radeon rx 580, which has a 8-pin power port, and comes with a 2 6-pin to 8-pin adaptor. Although my psu cable has a simple 6-pin. Is there any problem if I connect the 6 pin psu to the one port out of the 2 6-pin to 8-pin adaptor and after that, connect it all to the card? thanks!

 

[Dark Lord of Tech]

No you can't , you need a new PSU with the right connections.

PCPartPicker part list / Price breakdown by merchant

Power Supply: Corsair - CX (2017) 550 W 80+ Bronze Certified ATX Power Supply ($31.99 @ Newegg)
Total: $31.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-01-28 15:33 EST-0500

 

[themourqsreks]

Cant I just buy a 6pin to 8pin psu to graphics card adaptor?

 

[Dark Lord of Tech]

No you can't , because if your PSU doesn't come with the proper connections , it wasn't built to run the cards.

 

[themourqsreks]

then why is the market full of 6 to 8 pin graphic card adaptors?

 

[themourqsreks]

my psu says that it has place for an extra 2 pins on the graphics card exit

 

[Dark Lord of Tech]

For people that want to take the risk , I guess.
The PSU protects and powers your components , adding adapters , just puts more strain on an already poor PSU.

 

[themourqsreks]

One last question. my psu's manual says that it has a 6(+2) pin adaptor for my graphics card, so if my card actually allows me to, I should be able to get that 8 pin, right?

 

[Dark Lord of Tech]

Maybe , but I need the make and model to determine that.

 

[themourqsreks]

Sure, I will have an answer in 15mins

 

[themourqsreks]

It's a micro 850W ATX power supply.
Model: A-850BR

 

[Dark Lord of Tech]

https://www.cclonline.com/product/179317/A-850BR/Power-Supplies/Ace-850w-Black-PSU-12cm-Red-Fan-PFC/PSU0833/
Description states ^ 1 - 6 pin and if that is your power supply it's very very poor quality and I wouldn't run any card with it.

Key Features:

3x Molex Connectors
4x SATA Connectors
1x PCIe Connectors (6-Pin)
4-Pin CPU Power Connector
ATX Form Factor

 

[themourqsreks]

My manual says clearly, 6/8 PIN PCI EXPRESS CONNECTOR

 

[DSzymborski]

850W...1 PCIE connector. That's Hedberg-level comedy right there.

I wouldn't wish this PSU on a garbage can.

 

[themourqsreks]

Yea fellas I ain't that good on computers but the manual says so. 6/8 PIN PCI EXPRESS CONNECTOR

 

[themourqsreks]

Profoundly blackbird is on sth else. This PSU has:
20/24 pin motherboard connector
6/8 pin PCI express connector
8pin+12V motherboard connector
4pin+12V motherboard connector
2x 4pin molex connector
4pin floppy connector
4x Sata connector

 

[DSzymborski]

Yea fellas I ain't that good on computers but the manual says so. 6/8 PIN PCI EXPRESS CONNECTOR

It's a junk PSU either way. I personally have this weird fetish about not frying my expensive components, but your mileage may vary.

 

[Dark Lord of Tech]

Profoundly blackbird is on sth else. This PSU has:
20/24 pin motherboard connector
6/8 pin PCI express connector
8pin+12V motherboard connector
4pin+12V motherboard connector
2x 4pin molex connector
4pin floppy connector
4x Sata connector

I said If this is your PSU , I DIDN'T SAY FOR SURE as some models have similar descriptions.
But if it's an 850w with 1 PCIE cable , it's not worthy to run any card.

 

[themourqsreks]

How is it possible to fry my components? I mean the Watts are fine, and so are the pins. What's the problem?

 

[themourqsreks]

Still, can it run the card?

 

[Dark Lord of Tech]

I don't recommend you using that PSU to run the RX 580. If it fails it could take out other components.

 

[DSzymborski]

How is it possible to fry my components? I mean the Watts are fine, and so are the pins. What's the problem?

Because a power supply is a *lot* more than simply a number of watts. It's like assuming that all cars are equally dependable because they have four wheels and a door.

These are high-tech components, not extension cords. Junk-tier power supplies have a nasty habit of destroying PCs with poor voltage regulation, uncontrolled ripple, surges, poor protections, and so on. A lot of people who choose to power their new components with power supplies like these in order to save a buck start new threads later wondering why their GPU or motherboard no longer work.

It's your choice since it's your parts you may be destroying, not mine. Just like it's your decision to eat a pound of bacon for breakfast every morning or not.