Problem with Nvidia 660M

[[JOKER]Miczi]

Hey, I've got a problem with my laptop, and I even found a solution, but I'm not sure if it's safe since I don't know shit about overclocking. It's exacly this problem:
Problem z grafikÄ… w grach video. Lenovo Y580. Geforce GTX 660M
The author suggested to download MSI Afterburner and lower the memory clock to -110. I did, and it works, but won't it do any harm to my laptop? What do you think? Lowering shouldn't get it overheated or something like that, am I right? I have a Lenovo Y580, I don't want to send it back to service since it's gonna take a while and I already waited a month for this laptop...

[Fuse]

As you're lowering it instead of raising it, there shouldn't be any problem

[[JOKER]Ya$N]

Overclocking is risky only when you increase the memory clock ...

[[eVo]PvtBenny]

Those are artifacts i see in the video. Meaning you got a bad video card. I have a Lenovo Y580 myself for school and i do not have this at all and Bikedriver has a Lenovo Y580 as well and as far as i know he does not have it either.

Depending on how long you owned the Laptop (cant be more than 6 months as the Y580 has only been out for less than that actually) you should still have a waranty on it and should just go back to the shop you bought it from dont do anything stupid like lowering or raising memory clock and what not because that might void waranty i suggest you read the waranty folders/flyers that came with the laptop.

Like yasn said its risky to either lower or even raise the clock. As the laptop has been configured just the way it is.

The solution you found is probably only temporary and not a good one either because the video card is already damaged hence the artifacts.

Seriously ive had people come by at the IT service desk i work at half a day in the week at school with the same kind of problem. We always recommend them to get it repaired by the manufacturer or shop they got it from if they still have waranty left. And i know you have it since the laptop is no more than 6 months old.

Edit:
sorry for bumping the topic a bit but i felt like i still had to warn you about this kind of thing.

[[JOKER]Miczi]

Well, thanks a lot. Hm, the laptop works fine now with that solution, but if you say it is not that safe, then I really should consider getting it fixed by manufacturer. The problem is, you know, staying without a laptop for a month or so, cause it might last a while, doesn't seem cool to me ;/ Maybe I will do it after my exam. Thanks again for your warning.