Tasty Sandwich

So, friends, im having problems regarding a noisy GPU fan. See, i have a Diamond HD5670, a pretty old card which fan most of the time when booting my system, it starts spinning very slowly, making a pretty loud rattling noise, therefore, making its temps start rising really fast. And that leads me to shutting it down forcedly. The big deal is, that it does not have a hole to see the bearings of the fan, as you can see in the images (that labeling is printed on the surface in the first photo). I dont want to force it, i dont want to break it and be without a dedicated gpu (despite being old, it holds like a champ). So, what do you suggest me, what can i do to dismantle the blower without breaking it? Im not looking forward to buy an aftermarket cooling solution just yet (not enough funds). The good part is, the blower is just a 2-cable fan, so i could easily replace it with a 80mm case fan and strap it with zipties, but i wanna see if i can do something first for the stock blower. Thanks for your time guys

thanks a lot friend. but, what do you mean about reconfiguring? i will lose any data? or i need to reconfigure, for example, the run sequence if i need to do that again?

Hello people. brief story: i bought a pre-built computer, and it works perfectly at the time, but i have a problem. I cant access to the BIOS because CMOS has a password damn the guys who built this pc. So, i wanted to enter BIOS to change the run sequence (to install a new OS) but i couldn't. I was looking on internet about what i could do to remove the password, and i read about clearing the CMOS. Is that correct? and if it is, how can i do it correctly? note: i tried to enter BIOS with some generic passwords, but it didn't work. so, if you can help me with some advices, i will be very grateful. i'll try to post a screenshot later, so you can create an idea of that i'm trying to do. Thanks in advance