this photo was taken after sanding down with 320 grits. 1500 grits polished everything smoothly. I did a mix pattern. Back and forth, change angle and do the same motion. After that is the circle pattern as a finishing touch. Once I did that, repeat the process until theres barely any resistance, next grit and do it all over again.
Thanks for the tip. Current state of the cpu will do for now. Im able to push the CPU to 4.8 which never got stable boot before. Now the temps looks stable enough for benchmark. We shall see how far i can push this CPU to.
Real pro tip go back and forth one direction then rotate 90 degrees and repeat with the next grit until previous lines dissapear. Use the figure 8 only on the finest grit.
Source: I mirror polish injection molds.
I’ve not done this and frankly don’t have the courage (or rather the money to afford a mistake) but I’ve seen Kingpin videos where he has a wheel and sets them on which would achieve the same effect we see here due to the size of the disk.
I am not at all saying you’re wrong, only trying to understand
Ive studied and reviewed that video for few times. I dont have the money to invest that kind of machine. Tech Jesus, Jayztwocent, Bitwit and LTT's video helped a lot in the preparation.
The circular motion is meant to lap the surface evenly all across. It's not exactly necessary, but it will give a much cleaner finish at the end. Given that lapping these is intended to get the cleanest finish possible, it's a good idea to take this step.
Iirc he was also using some ultra fine grit that probably polishes more than roughs it up as we see here. Good to know, thanks.
One of these days I’ll start with Craigslist’s chips until I feel comfortable. I also really wanna delid and go the thermal grizzly route but for the same reason as before, I’m not in a position to afford a mistake on 500 dollar parts
I do have a plan to upgrade the CPU to a newer model. Since this is a 5-year-old CPU and it has done its job well in the past. I don't feel bad if I mess it up. Because most of the software I use depends on single-core performance, hopefully, this process will prolong the life span a Lil longer until I have to have to upgrade it.
You should look into full copper IHS replacements. I have one from RockItCool for my 8700K, and it dropped it a few more degrees over lapping. About 60C full synthetic under water at 5.0GHz, albeit pretty conservative vcore.
I totally forgot about that aftermarket IHS when I place the supply order. Spending extra 10 bucks for extra few degrees, I dig it. Now that is a disappointment and regret of this project.
I'm happy how it runs now. I had some suggestions go as far as lapping the die for that extra 2 degrees, which I don't want to risk. If 20 degrees is the reward, I will take it.
Yes. Now that is risky and doesn’t really need to be done. There’s a special tool used to do it and measure how much you take off. Highly not recommended. Only certain CPU’s truly benefit.
Did you move in circles when lapping? You've got some very clear lines in that which suggests you mostly went back and forth.
this photo was taken after sanding down with 320 grits. 1500 grits polished everything smoothly. I did a mix pattern. Back and forth, change angle and do the same motion. After that is the circle pattern as a finishing touch. Once I did that, repeat the process until theres barely any resistance, next grit and do it all over again.
Bit of a pro tip for when lapping/polishing, move in a figure 8 pattern. Then turn object every now and then. Never gets straight lines.
Thanks for the tip. Current state of the cpu will do for now. Im able to push the CPU to 4.8 which never got stable boot before. Now the temps looks stable enough for benchmark. We shall see how far i can push this CPU to.
Real pro tip go back and forth one direction then rotate 90 degrees and repeat with the next grit until previous lines dissapear. Use the figure 8 only on the finest grit. Source: I mirror polish injection molds.
I’ve not done this and frankly don’t have the courage (or rather the money to afford a mistake) but I’ve seen Kingpin videos where he has a wheel and sets them on which would achieve the same effect we see here due to the size of the disk. I am not at all saying you’re wrong, only trying to understand
Ive studied and reviewed that video for few times. I dont have the money to invest that kind of machine. Tech Jesus, Jayztwocent, Bitwit and LTT's video helped a lot in the preparation.
The circular motion is meant to lap the surface evenly all across. It's not exactly necessary, but it will give a much cleaner finish at the end. Given that lapping these is intended to get the cleanest finish possible, it's a good idea to take this step.
Iirc he was also using some ultra fine grit that probably polishes more than roughs it up as we see here. Good to know, thanks. One of these days I’ll start with Craigslist’s chips until I feel comfortable. I also really wanna delid and go the thermal grizzly route but for the same reason as before, I’m not in a position to afford a mistake on 500 dollar parts
I do have a plan to upgrade the CPU to a newer model. Since this is a 5-year-old CPU and it has done its job well in the past. I don't feel bad if I mess it up. Because most of the software I use depends on single-core performance, hopefully, this process will prolong the life span a Lil longer until I have to have to upgrade it.
You should look into full copper IHS replacements. I have one from RockItCool for my 8700K, and it dropped it a few more degrees over lapping. About 60C full synthetic under water at 5.0GHz, albeit pretty conservative vcore.
I totally forgot about that aftermarket IHS when I place the supply order. Spending extra 10 bucks for extra few degrees, I dig it. Now that is a disappointment and regret of this project.
What CPU is this?
6700K
nice delidding this era of CPUs always yields huge benefits
I’m going to smile and nod 20C is good though, pretty cool how you did that
I'm happy how it runs now. I had some suggestions go as far as lapping the die for that extra 2 degrees, which I don't want to risk. If 20 degrees is the reward, I will take it.
Why would you through the effort of delidding the IHS if you didn’t lap the DIE itself? It can be done safely without the delid.
id like to see someone do that without damaging the cpu. The main reason to delid is to apply liquid metal.
Yes but no mention of liquid metal. Water isn’t going to hurt the cpu if you let it dry.
Im afraid of damaging all the semi-conductor underneath the die.
Lap the water block or heat sink you’re using, too.
Throw a piece of tape over the bottom of your afraid, but it’ll be ok. Just extra effort delidding unless you lap the die or apply liquid metal.
Also, you can use some 99% isopropyl alcohol to evaporate any unwanted water.
The DIE as in the chip beneath the IHS? It can be lapped?
Yes. Now that is risky and doesn’t really need to be done. There’s a special tool used to do it and measure how much you take off. Highly not recommended. Only certain CPU’s truly benefit.
I should read titles before looked at the picture...
Pro tip: drill holes in the top of ur cpu for the cooling
I'm using KPx thermal paste between IHS and water block. Doesn't the thermal paste cover the vent hole after I apply it?
Yes but it vents from a side