SATA power to 6-pin PCIe for budget graphics card?

[Newblesse Obblige]

Do you think this adapter is ok for graphics cards like 1650, RX 570, or 1650 Super?

I just want to know why using this is good ot not.

I will not going to do this btw.

[JackPedro]

3 hours ago, 5GigaaHertz said:

Do you think this adapter is ok for graphics cards like 1650, RX 570, or 1650 Super?

I just want to know why using this is good ot not.

I will not going to do this btw.

yes it is perfectly fine (I have it with a 2060s as lenovo screwed me with their power supply)

[Jenko32]

3 hours ago, 5GigaaHertz said:

Do you think this adapter is ok for graphics cards like 1650, RX 570, or 1650 Super?

I just want to know why using this is good ot not.

I will not going to do this btw.

Theoretically the PCI Express delivers max 75W

The sata cable should be rated for max 54W

The 1650 has no need for an additional PCI Express Power, it uses only 75W

1650 Super uses 100W, so 75W from PCI Express plus 25W from the sata cable could be ok

The RX570 uses max 150W, some says 135W, so let's use 135W for this scenario 

75W+54W=129W so mathematically it could be fine as it's only 5W missing, but it's not actually.

Every cable as a specified thickness that is going to allow to pass the amount of the needed current (Voltage X Current=Wattage). If you don't use the correct thickness of cable you could be overheat the cable, following melting of the outside rubbery sheath, it catching on fire or it running at 100° or even higher, lowering its lifespan and possibly causing other problems

The cables from the sata cables, even though of being capable of passing 54W do not have enough cable thickness to avoid the things I mentioned above.

So use it at your own risk with a 150W card but should be fine with a lower one

[Newblesse Obblige]

14 hours ago, Jenko32 said:

Theoretically the PCI Express delivers max 75W

The sata cable should be rated for max 54W

The 1650 has no need for an additional PCI Express Power, it uses only 75W

1650 Super uses 100W, so 75W from PCI Express plus 25W from the sata cable could be ok

The RX570 uses max 150W, some says 135W, so let's use 135W for this scenario 

75W+54W=129W so mathematically it could be fine as it's only 5W missing, but it's not actually.

Every cable as a specified thickness that is going to allow to pass the amount of the needed current (Voltage X Current=Wattage). If you don't use the correct thickness of cable you could be overheat the cable, following melting of the outside rubbery sheath, it catching on fire or it running at 100° or even higher, lowering its lifespan and possibly causing other problems

The cables from the sata cables, even though of being capable of passing 54W do not have enough cable thickness to avoid the things I mentioned above.

So use it at your own risk with a 150W card but should be fine with a lower one

so it is fine for 1650 with 6pin and the 1650 but not for the 570?

is the molex to 6 pin any better? do you reccomend using the molex adapter for the 570 instead?

[BTGbullseye]

5 hours ago, 5GigaaHertz said:

so it is fine for 1650 with 6pin and the 1650 but not for the 570?

is the molex to 6 pin any better? do you reccomend using the molex adapter for the 570 instead?

Molex should provide about 33% more power per connector than SATA.

 

These calculations are based on the SATA connector having 3x12V connectors each capable of 1.5A, (9A total) and Molex having 1x12V connector capable of 11A. (11A total)

[Newblesse Obblige]

1 hour ago, BTGbullseye said:

Molex should provide about 33% more power per connector than SATA.

 

These calculations are based on the SATA connector having 3x12V connectors each capable of 1.5A, (9A total) and Molex having 1x12V connector capable of 11A. (11A total)

so do you think these adapter safe in general or for overclocking the card/s?

[BTGbullseye]

6 hours ago, 5GigaaHertz said:

so do you think these adapter safe in general or for overclocking the card/s?

No. Overclocking should only be done if you have the correct connector for the GPU. If you don't do that, you're almost guaranteed to run into issues, like a blown PSU, or destroyed components.

[Newblesse Obblige]

10 hours ago, BTGbullseye said:

No. Overclocking should only be done if you have the correct connector for the GPU. If you don't(?) do that, you're almost guaranteed to run into issues, like a blown PSU, or destroyed components.

So it best to run on stock when using these adapters? 

[BTGbullseye]

40 minutes ago, 5GigaaHertz said:

So it best to run on stock when using these adapters? 

Yes. Overclocking can start to cause issues on connectors not originally designed to provide the power to a GPU of this era.