I’ve been building computers since the 90s, and I’ve never before seen a performance boost from repasting a CPU.

I fired up an Ubuntu from a non-persistent USB stick and ran stress to test, but since it was non-persistent, and I didn’t want to bother with unnecessary networking, I was forced to use the very technical method of recording data: Taking pictures of the screen with my phone.

Lenovo P1 gen 2, i7-9850H, 64 GB RAM, 1 TB NVMe SSD, Quadro T1000 GPU.

I actually have two of these machines, the first I needed to disassemble to clean out a fan, but the fans and everything were fine on the second unit and the only reason to remove the heat sink was to repaste. After the success of the first, I decided to give it a shot, and here we go:

Before repasting, the CPU would throttle and settle in at, 3050MHz. After repasting, it stabilized at 3400MHz. This is a significant improvement.

core	before	after
core 0,0	95	89
core 1,0	93	89
core 2,0	98	92
core 3,0	96	93
core 4,0	94	87
core 5,0	94	90

Well worth the hassle, and I don’t think I even broke anything!

Not bad for a few minutes of work.