GPU clock need underclock for stability

[MerrikV]

Hi guys,

I know you for a while and I encounter something, I need you advice for my GPU (problem?);

So, I bought this video card 4 years ago, and since I encounter a GPU clock and maybe memory glock to. So nominal value in Asus gpu tweak II or Firestorm or MSI Afterburner are 1759 MHz for GPU clock. for stability in games I need to downclock to -30MHz and I do for memory clock to;

I use power usage to 120% and either combination of GPU clock and memory clock up cause instability. Also the curve is custom so i don t have in any game more than 68° C, so it's not a temperature problem.

Now I have game crash with some horizontal lines in middle of screen with pink and others colors, and even when I try to clock it up and nominal values and hit apply same thing appear, no problem with underclock pink horizontal lines;

Past I had crashes like black screen and full RPM coolers speed but again, but no temperatures more than 68° C, from that I change the thermal paste 2 times with arctic silver 5, I know it s not lasting more than 1-2 years but at least have good conductivity;

I regulary clean my case 1-2 months with blown air, I do it for 4 years since I made my own PC with parts;

I was thinking, maybe to disassembly, clean it with isopropyl alcohol, look for thermal pads, I saw for what I remember some parts have broken thermal pads and... I also think those are some old, and maybe then the problem will be solved;

In nominal values, 1759 MHz or down -10, -20, I have 5-10 mins regular playing then crash, but last time was instant crash;

 

I own a asus tuf b450m plus gaming motherboard, bios updated;

- Ryzen 5 2600x CPU at 4150 GHz;

- 16x2 GB RAM CL16 3200MHz;

- the beast GPU is ZOTAC Geforce 1080 TI AMP! Extreme;

- PSU nJoy woden 850W plus gold, 88%;

 

I don t know if maybe is a GPU fault problem from factory, cause I bought same card for one of my friend who I've made his PC also and his clock are 1779 MHz and no problems, I think he can push it more than this with proper voltage, cooling, PSU etc;

Also tried to change Vbios from TechPowerUp, are 3 types, all are the same, no difference, so I'm thinking it's a hardware problem;

Any advice please;

Thank you and for your detailed content!

[emosun]

well your power supply is garbage so replace that first so you actually have a machine worth diagnosing , right now it makes sense it wouldn;t have any form of stability.

[MerrikV]

10 minutes ago, emosun said:

well your power supply is garbage so replace that first so you actually have a machine worth diagnosing , right now it makes sense it wouldn;t have any form of stability.

Why would a PSU with 748W would not make parts work well?

[emosun]

7 minutes ago, MerrikV said:

Why would a PSU with 748W would not make parts work well?

becuase it's poor quality and a brand nobody has ever heard of and probably doesn't make anywhere near the wattage it advertises and in case you didn't notice....... a computer requires electricity to run and every single part in your computer is plugged into it.

I wouldn't fix an engine on a car that didn't have any wheels either so start with some decent hardware so you have something we know is good enough to diagnose.

[Mojo-Jojo]

13 minutes ago, MerrikV said:

Why would a PSU with 748W would not make parts work well?

Power is not the only metric that makes a PSU good or bad. Stability is a giant factor.

You could have two PSU's both capable of delivering the same power, but one would do so with minimal line noise, while another might heavily fluctuate in voltage while delivering the required power. Those voltage fluctuations cause instability in seemingly random parts/workloads.

 

I second the motion to try with a known-brand proper power supply. Check the Tier list here on the forum for more information about what brands/models are good.

[MerrikV]

3 minutes ago, emosun said:

becuase it's poor quality and a brand nobody has ever heard of and probably doesn't make anywhere near the wattage it advertises and in case you didn't notice....... a computer requires electricity to run and every single part in your computer is plugged into it.

I wouldn't fix an engine on a car that didn't have any wheels either so start with some decent hardware so you have something we know is good enough to diagnose.

I know what watt is, I m a power engineer running a 400kW photovoltaic panels, and a graduate degree at National University for Science and Technology UPB Bucharest so... I know with what I'm working, not even corsair is a PSU producer so i think this nJoy PSU peform very well, i made more than 10 PC's with this nJoy PSU's so I don t think this is the problem.

[emosun]

7 minutes ago, MerrikV said:

I know what watt is, I m a power engineer running a 400kW photovoltaic panels, and a graduate degree at National University for Science and Technology UPB Bucharest so... I know with what I'm working, not even corsair is a PSU producer so i think this nJoy PSU peform very well, i made more than 10 PC's with this nJoy PSU's so I don t think this is the problem.

oh ok

I've built hundreds of computers over the past 20 years but hey , maybe someone who matches your degree will show up and help

[MerrikV]

8 minutes ago, emosun said:

oh ok

I've built hundreds of computers over the past 20 years but hey , maybe someone who matches your degree will show up and help

I have this problem with this GPU from the first, bought like 5 of this kind of GPU but only mine had this problem. And also the friend who I ve made his PC have same PSU but no problem, even +20 MHz GPU clock at 1779 MHz.

[emosun]

4 minutes ago, MerrikV said:

I have this problem with this GPU from the first, bought like 5 of this kind of GPU but only mine had this problem. And also the friend who I ve made his PC have same PSU but no problem, even +20 MHz GPU clock at 1779 MHz.

hmm so some of the power supplies work and some don't right?

and you don't see how a no name brand power supply could have bad quality control like that right? they didn't teach you about badly made electronics in that college or what? youre just working under the assumption that a cheap power supply is the same thing as an expensive one? that everything written on the box is correct and accurate?

guess it's a hard way to learn a lesson but someone sooner or later has gotta teach it i suppose.

if you don't think it's the power supply , then buy a new gpu and figure it out that way i guess because nobodys experience here seems to be worth as much as your own opinion.

[MerrikV]

1 hour ago, emosun said:

hmm so some of the power supplies work and some don't right?

and you don't see how a no name brand power supply could have bad quality control like that right? they didn't teach you about badly made electronics in that college or what? youre just working under the assumption that a cheap power supply is the same thing as an expensive one? that everything written on the box is correct and accurate?

guess it's a hard way to learn a lesson but someone sooner or later has gotta teach it i suppose.

if you don't think it's the power supply , then buy a new gpu and figure it out that way i guess because nobodys experience here seems to be worth as much as your own opinion.

I'll try another supply, maybe this is broken, and return it if doesn't work. What if the PSU is not the problem?

Maybe encounter this kind of problem and can help, if not, that's ok. I ll try to by elimination step by step, if nothing works, even with cleaning and thermal pds, and PSU. that's it, broken GPU, but it's working fine, just wanted a nominal OC clock, not over.

Thanks for advice!