2x 6 pin to 8 pin ( rx 580 low fps )

[Skylz]

he following problem arises, system:
Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz,
video card, rx 580 8gb (it should be noted that the power supply is 2x 6-pin plugs in 1x 8-pin plug) the original source only has 6 pins for the video card power supply, so an adapter was used)
In games it works worse than before with the old video card ( nvidia k4000)
Bottleneck? That's what I thought too. but the bottleneck was before with the nvidia video card
25.7% bottleneck with rx 580
21.7% bottleneck with video card nvidia
if you ask why I didn't change the source, I have a strange z420 hp motherboard, where the ATX power plug has 18 pins, not 20 nor 24. (Yes, I found an adapter from 24 pins to 18, but it came out cheaper to buy an adapter from 2x6 pins to 8 pins)
Should the rx 580 not work as it should because the adapter "cuts" the power? I looked on youtube for benchmarks with my exact processor and rx 580 card and the games run fine.

 

[eidairaman1]

he following problem arises, system:
Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz,
video card, rx 580 8gb (it should be noted that the power supply is 2x 6-pin plugs in 1x 8-pin plug) the original source only has 6 pins for the video card power supply, so an adapter was used)
In games it works worse than before with the old video card ( nvidia k4000)
Bottleneck? That's what I thought too. but the bottleneck was before with the nvidia video card
25.7% bottleneck with rx 580
21.7% bottleneck with video card nvidia
if you ask why I didn't change the source, I have a strange z420 hp motherboard, where the ATX power plug has 18 pins, not 20 nor 24. (Yes, I found an adapter from 24 pins to 18, but it came out cheaper to buy an adapter from 2x6 pins to 8 pins)
Should the rx 580 not work as it should because the adapter "cuts" the power? I looked on youtube for benchmarks with my exact processor and rx 580 card and the games run fine.

Probably your motherboard and power supply combination.

With age of that hardware, do a fresh os to remove any nv stuff

 

[LabRat 891]

My last upgrade on an i7-3770k (Ivy Bridge, 4-core) was an RX580, a notable uplift over the R9 290X before it, which was an upgrade over the 780Ti the build started with.
There's definitely something not right.

As eidairaman1 mentioned, cleanly reinstall Windows
or
At least run Display Driver Uninstaller in safe mode, and then cleanly install the Radeon drivers.

I'd also inspect/mend the 6-pins, and the adapter.
A *lot* of those (cheap) 2x6-pin to 1x-PCIe 8pin adapters are aluminum wire and/or really poorly fitting/wearing.
Amongst my first thoughts, were the adapter or the 6-pins being worn, poorly fitting, etc.

The other thing I'd consider/look at, is the age and use of the 580.
Is it bouncing off its thermal limits? Bad TIM? Etc.

 

[Skylz]

My last upgrade on an i7-3770k (Ivy Bridge, 4-core) was an RX580, a notable uplift over the R9 290X before it, which was an upgrade over the 780Ti the build started with.
There's definitely something not right.

As eidairaman1 mentioned, cleanly reinstall Windows
or
At least run Display Driver Uninstaller in safe mode, and then cleanly install the Radeon drivers.

I'd also inspect/mend the 6-pins, and the adapter.
A *lot* of those (cheap) 2x6-pin to 1x-PCIe 8pin adapters are aluminum wire and/or really poorly fitting/wearing.
Amongst my first thoughts, were the adapter or the 6-pins being worn, poorly fitting, etc.

The other thing I'd consider/look at, is the age and use of the 580.
Is it bouncing off its thermal limits? Bad TIM? Etc.

i bought it from a friend who used it in gaming , gta 5 ,cs2 and his games runed great with i5 3570k , 16gb ram, and power suply 550w, the adaptor was bought new payed 5 bucks for it