Motherboard choking GPU?

[D14BL0]

Hello everyone,

I have a terrible and painful problem that struck my overrall performance.

Since last year i had some performance issues caused by a weak CPU that could not sustain the pressure of the GPU, but somehow i ignored that, but now i get constant performance drops only on my GPU,

like running test with overlay sensors showed me that on a basis of 90% usage i had normal FPS and everything was ok, but then i had theese sudden drops to half usage of processing power

by the GPU (Which led to FPS drops) and then it went back to normal, and it kept on going with heavy games only, because weaker have a lower need of full power.

Now, i have written to many supports of each of my hardware parts, starting from CPU to GPU and Motherboard.

They told me that my GPU has a PCIE 3.0 output which needs a 3.0 input, which my motherboard does not have, it has a 2.0 instead. And i also read that even if you put it on a 2.0 it does not

affect the performance of the GPU, but seeing my usage going down to half all the time makes me sceptic about the things i read on forums.

So, does anyone know what on earth could be the issue? Is it the motherboard that is choking my GPU and she needs to be changed to a more recent model with 3.0 support?

Or is it something else??

please help because i am desperate.

 

SPECS :

MOTHERBOARD - ASUSTek M5A78L-M LX3 (AMD 780G Chipset)

RAM - Kingston 8 GB PC3 -12800 ( 800 Mhz ) + Kingston 4 GB PC3 - 10700 ( 667 Mhz ) DDR3 Memory

CPU - AMD FX-8370E Black Edition 3.30Ghz 8Core AM3+ (Watercooled with Corsair Hydro i60)

GPU - GTX 1050Ti MSI 4GB OC edition

PSU - Corsair Bronze CX550M 550W

HDD - Toshiba 1TB (DT01ACA100 ATA Device)

[minibois]

I don't know if there is a way to test this other than a heat camera or touching them, but it might be the VRM's overheating.

You can learn more about what those are here:

My colleague has a system with similar specs (but a better GPU, but worse CPU) and it was having stability issues because of overheating VRM's on his motherboard and only installing a fan on top and bottom of the VRM's for some active airflow fixed this issue.

 

PCIE 2.0 16X is still plenty fast for a 1050 Ti videocard.

 

Also, the only way to get a motherboard with PCIE 3.0 is switching your CPU and motherboard out and possibly also your memory if you will go for any of the more recent sockets.

[SupaKomputa]

check your gpu temps, it maybe overheated.

there will be no advantages moving to pcie 3.0.

[D14BL0]

1 minute ago, SupaKomputa said:

check your gpu temps, it maybe overheated.

there will be no advantages moving to pcie 3.0.

CPU temps are at norm, while in game never goes above 60 degrees

[meenmeen1103]

Only four power phases on that mobo for cpu, could likely be VRM issue suggested above. No way it should be related to the PCIE interface. 

[D14BL0]

I want to improve my hardware anyway soon but maybe i could solve the issue in any other way..

As i see the only solution is to change the Mobo

[meenmeen1103]

You could try sitting a fan on top of the gpu pointing to the VRM and see if at least it takes longer before fps drops or if it goes away completely. Usually budget boards like that that don't have even heatsinks on the VRM rely on airflow from the stock coolers to keep them under control.

[D14BL0]

i just placed my finger on the VRM heatsink and i burned myself, i think that we might have found out the issue because the GPU is Ok , CPU too, and i can feel the head coming out of it while i stand face forward to the closed body of the PC

 

[D14BL0]

Like the Mobo temperature is 52 Degrees Celsius on idle while other components go from 24 to 29

Edited March 13, 2018 by D14BL0
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[D14BL0]

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