Overclocking causes red & black lines in 3dmark timespy, will this hurt my system / performance?

[rickje139]

I have a lenovo legion 7 gaming laptop and tried overclocking the machine, but i had noticed some strange effect.

Above +85mhz core i start seeing red / black bars flicker on my screen rarely, at +150mhz core it happens a lot more frequently.

 

Do i have to stay under the point where the red / black bars appear in the benchmark or is it ok to just go as far as i possibly can without crashing?

The maximum i can do without seeing the red lines is:

+80mhz core
+1700mhz memory

 

I had gotten 300 more points by going as far as i possibly can without crashing, so its a nice boost i get by keeping it at the max.
(+175mhz core)
(+1700mhz memory)

but this results in a ton of red / black lines flickering all over the screen in timespy only.

 

Lenovo legion 7 16achg6 (2021)

RTX 3080 mobile

5900HX

Dual ranked hyperX memory CL20

 

[GorujoCY]

this might hurt it a bit seriously, this is why in laptops you have to be cautious about unauthorized overclocking.
for me too if I go above 230MHz core frequency overclocking on my GPU in my laptop, it would do the blue screen, good thing msi afterburner resets it. so yeah I think it might be best to go to a safe overclocking.

[Dedayog]

It obviously means something isn't working properly at those clock speeds.  The red lines are malfunctions of hardware.

 

Do you think it's good?

[freeagent]

Welcome to overclocking

 

Now go back and try +80 and see what happens

[rickje139]

29 minutes ago, GorujoCY said:

this might hurt it a bit seriously, this is why in laptops you have to be cautious about unauthorized overclocking.
for me too if I go above 230MHz core frequency overclocking on my GPU in my laptop, it would do the blue screen, good thing msi afterburner resets it. so yeah I think it might be best to go to a safe overclocking.

I was able to run rainbow six siege at +140mhz and gotten a way better score.

The minimum FPS is way higher.

 

Should i still stay under even a tiny flicker no matter what it takes??

[GorujoCY]

1 minute ago, rickje139 said:

I was able to run rainbow six siege at +140mhz and gotten a way better score.

The minimum FPS is way higher.

 

Should i still stay under even a tiny flicker no matter what it takes??

I would say that if you care about longetivity, dropping it a little, to maybe 100mhz would be much safer.

[rickje139]

1 minute ago, GorujoCY said:

I would say that if you care about longetivity, dropping it a little, to maybe 100mhz would be much safer.

At +100mhz i would still see a few flickers, but not a heck ton constantly.

What about the memory?

The memory has no issues running at +1500-1700mhz

 

[GorujoCY]

Just now, rickje139 said:

At +100mhz i would still see a few flickers, but not a heck ton constantly.

What about the memory?

The memory has no issues running at +1500-1700mhz

 

i think 1000 is a bit massive, i think this is why there's flicker, maybe keep it at 1500MHz if you want it that heavy.

[rickje139]

Just now, GorujoCY said:

i think 1000 is a bit massive, i think this is why there's flicker, maybe keep it at 1500MHz if you want it that heavy.

The flickers are purely caused by the core, i have tried running the same settings with +0mhz memory

There are no issues or artifacts with +1500mhz memory