Ek quantum momentus AM4 block (now with AM5 standoffs), where can I find a screw replacement?

megatron · 17 Jan 2025 at 22:19

I need one screen replaced as its stiff. I'm not happy with my load temps with a 9800x3d. Gets to 80'c and I've never seen that on watercooling. I'm using thermalright heilos solid state thermally conductive material (for long term stability. I think the mounting pressure isn't even. The last time I had the block off I had to clamp the standoff in a vice and twist the screw out. Its an expensive piece of kit which depends on something so cheap. The screw has a hex head. So is a bit unusual. The manual talks about m4 standoffs but doesn't mention screw specifics.

dfour · 19 Jan 2025 at 18:07

All the momentums are monoblocks for specific motherboards. Do you mean the magnitude?

Magnitude

EKWaterBlocks Shop offers you complete assortiment for water-cooling of your PC. Only EK and EK confirmed quality products.

www.ekwb.com

Probably the best place is to just go directly to EK and ask them.

megatron · 19 Jan 2025 at 18:10

Yes that's right. I've been to screwfix and bought m4 hex screws and they were too big to fit the standoff thread. Now I've gone to the rainforest and got an m3 hex screws boxset for ~£7. Hopefully the standoff inner thread is actually m3.

dfour · 19 Jan 2025 at 18:10

You could always repaste the block and remount (with paste) it to see where the mounting presure is lacking or not.

megatron · 19 Jan 2025 at 18:12

Without the replacement screw this is dangerous as it may become mangled and stuck inside the am5 standoff which would mean I couldn't mount the block again.

dfour · 19 Jan 2025 at 18:29

I thought I had some spare in my magnitude box but its just some am5 standoffs.

Best of contacting EK for help.

megatron · 21 Jan 2025 at 13:52

I sorted it, adjusted the mounting pressure and I get ~20'c lower temps on load in valheim and deep rock galactic. I'm going to test 3dmark.

Alan1969 · 21 Jan 2025 at 16:05

20°C lower!!!! wow

dfour · 21 Jan 2025 at 16:41

Its a fantastic cooler.

MAybe its because your using a cooling sheet intead of thermal paste and you needed to be more brave on cranking it down.

megatron · 21 Jan 2025 at 16:42

64'c vs 46'c !

megatron · 21 Jan 2025 at 17:01

dfour said:
Its a fantastic cooler.

MAybe its because your using a cooling sheet intead of thermal paste and you needed to be more brave on cranking it down.

I followed the manual and screwed evenly in a cross pattern around and checked that all hex head screws were slightly below the corresponding height of the retention mechanism of the block. To apply more pressure would mean fully compressing the spings, which I wouldn't recommend.

Edit: but you're right, I read about it needing more mounting pressure for this material.