reasonablekeith

@Rex311 https://www.asus.com/supportonly/GA502DU/HelpDesk_BIOS/ Download it as above and stick it on a USB stick. Restart your laptop holding down F2 as it boots. Then it's somewhere in the menu where you can browse the usb stick and find your download. @Shinxchan , you just have to unscrew the back cover, but then you do that to snap off a number of tiny plastic rivets to remove the metal covers. Easy to do, but they wont go back on, without a few dabs of glue. My laptop continues to be faultless since the update, with no hacks needed. Farcry5 running around 60/70fps in ultra on Performance in Armoury Crate, (seems a little quieter than Turbo, which overclocks a little)

There are little bits of plastic that are melted into rivets holding them on. There's no getting these off without snapping them. They are tiny though and pop off easily. For putting them back, you could dab a bit of glue on each of the holes and they would look the same (ish). That said, I just took them off mine, definitely runs cooler as far as MSI Afterburner is reporting. I've not had a single slow down since the Bios Update ( three evenings of farcry5 so far) . After frustration with this laptop, I'm quietly optimistic that it's now fixed.

So I got one of these in the black friday sales last year, and it hasn't played games properly since I had it, exactly the same problems as described here, dropping to 400mhz regularly. I've followed this thread for a while, and tried all the various things, but the v300 bios update seems to have fixed it. Just had a couple of hours on FarCry5 without a single drop out, with no other hacks or tweaks running. Was a long time coming ASUS! Thanks for all the people who posted here to try and sort this mess out ? PS: Still have my vent covers blocked, as I wanted to keep the option of returning it. Fingers crossed that I now wont need to.