Intel i5 4690k MSI Z97 G43 Board: Correct Torque for Corsair Hydro Series H75 CPU Cooler

Hello,


I have a small question and problem at the same time. I bought new equipment based on the Intel i5 4690k platform and the MSI Z97 G43 board. I bought water cooling from Corsair Hydro Series H75, the first time I tightened the pump too weak, and the temperatures in IDLE reached 40C and under stress even 89C, so I decided to tighten the cooling. However, I miscalculated the strength and suddenly I heard a crack, one of the nuts popped out. After this incident, I checked the CPU and motherboard for damage. However, I did not notice anything, but on the core of the pump you can see a scratch from the corner of the IHS, but nothing can be seen on the CPU. After replacing the paste and screwing it again, the temperatures dropped to 48C under stress. I have a question, did I damage something that I don't know about? The processor and the motherboard are stable. Can such a strong tightening can damage the CPU if there are spacers anyway?? Please reply. Regards.

If it works, you haven't damaged it. You could damage the motherboard, the processor would be difficult to damage - possibly you could crush the IHS, but since the temperatures are good, you probably didn't bend it.

And how crushed IHS is with the thread guarantee?? Luckily nothing happened.

Well, it looks like it's mechanically damaged. On the other hand, the CPU needs to be broken (improper OC or healthy overheating) or be unlucky for it to fail.

And as for the pressure of the cooler, it must be screwed tight??

Well, it must. The minimum necessary amount of paste and solid pressure. It's not allowed to move. Only you see, there are no numbers here, no torque wrenches, so with this force it's a moot point. Two people will tighten it tightly - one will fly, the other will break everything. So firmly but with feeling...

When I tightened the pump, I still had some slack, but suddenly trachhhhh and the nut jumped out of the thread.

Maybe something was set crookedly. Because I understand you have the backplate on.

Of course it's founded. I don't know what to think about it.

Since it was dead and it was possible to put it back together again, I bet that you screwed the nut crookedly and it fell off the thread. Lucky you didn't ruin the thread

Luckily I had to buy a new mount.

And tightening the screws too much can crush the cpu, since there are spacers, I'm tired of this matter, and the computer works stably.

I think the motherboard will fail first. But if you have a backplate, nothing can happen. The processor is a piece of nickel profiled (probably embossed) sheet (IHS) placed on the PCB. A fairly evenly distributed pressure will take a lot of pressure.

And how do I know that the pressure is even?

The rotation of the screws is usually counted. Possibly, after all, you feel the resistance of the screw under the screwdriver or whatever you twist it. If the backplate lies straight, all the distances are whole, then with the same number of turns of the screws or the same resistance of the screw, the pressure is equal.
Stop panicking now. You bought yourself a good computer - now you know why it's better to have an antique for the first steps in assembling, modding and assembling a PC. Then you learn from your mistakes at little cost.

Well nothing is happening yet, so maybe nothing will happen;D I think if the pressure was bad then the temperatures would be worse.