My 4530s is really slow!

[Kotek Besar]

I'm encoding video. Temp is now 82 degrees c.

 

[Kotek Besar]

That's part of your problem here. The 4530s only support max of 8G Ram. I'm assuming your using 8G+4G module to get that 12G. This will cause your CPU to work harder which result in overheating and/or freezing.
Even if it support more than 8G you should only use the same module speed and brand if possible. 8G+8G or 4G+4G etc...
Remove one of your memory module and use the module that came with you HP before you try anything else.

I tried:

• Removing 8gb stick, leaving 4gb.
• Removing 4gb stick, leaving 8gb.
• Removed heat sink, cleaned and replaced thermal paste with Arctic Silver 5.

Nothing resolves the issue. When idling, the 4 CPU cores average at about 50-55 degrees. When encoding video, they average at 75-80 degrees.

What else can I try?