PCIe 6pin to 8pin adapters. Are they safe?

[Vision541]

I ordered a PSU that worn come for a long time. And in the meanwhile I got this https://www.amazon.com/dp/B07C71KJ4B/ref=cm_sw_r_cp_apa_i_YcazFbHGBFJHP adapter. What's the pros and cons? I know molex to 8pins are more risky and that the additional 2 pins are just ground. Is it safe?

[Electric Cupcake]

Nothing worse than added resistance, I should think.

[Vision541]

Diposting pertama kali oleh ZootsIdenticalTwinSisterDingo:

Nothing worse than added resistance, I should think.

I'm too excited to wait tbh lol

[_I_]

you dont need it, just plug in the 6pin

[Vision541]

Diposting pertama kali oleh _I_:

you dont need it, just plug in the 6pin

I'll try tmrw and let you know how it goes. Does it matter which side of the 8 pin I plug into? The left or right of 8pin female? Or center

[Electric Cupcake]

Diposting pertama kali oleh InsomniaK917:

Diposting pertama kali oleh _I_:

you dont need it, just plug in the 6pin

I'll try tmrw and let you know how it goes. Does it matter which side of the 8 pin I plug into? The left or right of 8pin female? Or center

Make sure the colors line up.

[Vision541]

Diposting pertama kali oleh ZootsIdenticalTwinSisterDingo:

Diposting pertama kali oleh InsomniaK917:

I'll try tmrw and let you know how it goes. Does it matter which side of the 8 pin I plug into? The left or right of 8pin female? Or center

Make sure the colors line up.

Gotcha though what colors. As the female side on the GPU is black and th pins of the 6pin connector. Thanks for the help and sorry for the questions for each detail. I'm literally autistic and unsure.

[Illusion of Progress]

Doesn't it only go in one way?

The 8 pin adds another 12V power wire and another ground wire over the 6 pin. As far as I can tell, the adapter accomplishes what it does by splitting an extra of each from one of the original six source wire (some adapters are three way so they source from two places to avoid this), so in the case of the adapter you linked to, I would THINK you're going to (potentially) double your draw on that one 12V wire, but it's likely less.

This means if you use a 6 pin cable in place of an 8 pin one, it might not get the power it needs. Not sure if it'll just run slower, turn off (or crash) once it needs power it can't get, or even refuse to start. I know I forgot to plug one in once when I was cleaning my PC and I'm pretty sure my PC (the GPU itself?) beeped on startup. Can't remember if it still booted to Windows though (I'm thinking it didn't but I could be wrong as it was years ago).

[Electric Cupcake]

Black for ground.
Red for 5v.
Yellow for 12v.
Orange for 3.3v.

In this case it's just black and yellow.

[Illusion of Progress]

Diposting pertama kali oleh ZootsIdenticalTwinSisterDingo:

Black for ground.
Red for 5v.
Yellow for 12v.
Orange for 3.3v.

PCI Express cables don't have 3.3V or 5V connections; they are only 12V (Yellow) and ground (Black) as far as I know, and aren't usually color coded on the GPU connector. Physically, it should only fit one way though.

I actually just looked up the wiring for PCI Express and if what I'm seeing is correct, I was wrong about it in my prior post; the 8 pin connection doesn't seem to add another 12V connection but two Black wires (one is supposedly "sense B" with the other being another ground). I always though 8 pin was providing more power over 6 pin. Many 6 pin+2 cables actually seem to split wires themselves (My PSU does) so that adapter should be totally safe/fine then.

[_I_]

http://www.playtool.com/pages/psuconnectors/connectors.html#pciexpress

they are keyed and will only go in one way

[Electric Cupcake]

Diposting pertama kali oleh _I_:

http://www.playtool.com/pages/psuconnectors/connectors.html#pciexpress

they are keyed and will only go in one way

You'd think so, but I knew a guy in training who somehow managed to stick a DIMM in upside down, despite the notch.

[Tristan]

Diposting pertama kali oleh _I_:

you dont need it, just plug in the 6pin

i think he needs both

on mine i must use both i mean all together

and why would he think this is not safe ?
i dont understand where is the danger ? its plug and play

[r.linder]

If your PSU doesn't have an 8-pin, it may not even be able to output that much power on the 12v rail for your CPU and GPU.

It's literally better to just buy a new PSU than use crap adapters. I tried adapters in the past with decent cheap PSUs that lacked 8-pin and they always had problems with power loss due to the power draw being too much.

Also have to be careful with modular PSUs, as some have different pin-out
if the pins are different you can potentially cause damage to your hardware because current is being incorrectly distributed through the cable

[_I_]

Diposting pertama kali oleh Capri-Sun:

Diposting pertama kali oleh _I_:

you dont need it, just plug in the 6pin

i think he needs both

on mine i must use both i mean all together

and why would he think this is not safe ?
i dont understand where is the danger ? its plug and play

if the gpu has 2x 6 or 6+2 connectors you need a 6pin or 6+2 in each of them
but the 1660 only has 1x 6+2 connector, using a 6pin is fine with it

[Vision541]

Diposting pertama kali oleh _I_:

Diposting pertama kali oleh Capri-Sun:

i think he needs both

on mine i must use both i mean all together

and why would he think this is not safe ?
i dont understand where is the danger ? its plug and play

if the gpu has 2x 6 or 6+2 connectors you need a 6pin or 6+2 in each of them
but the 1660 only has 1x 6+2 connector, using a 6pin is fine with it

Yea it's just one 6 + 2 connector. I have the EVGA GTX 1660 Ti SC Ultra Gaming. I'm gonna try right now