Did not see that I should reply to you; Ryzen AM5, 95C is absolutely 'normal' according to AMD

95 is.. abnormal?

check the thermal paste

it may be uneven, but if after u reapplied the TIM and properly sat the pump, and still getting same variance between the coolant temp and CPU temp during load, then perhaps there's nothing wrong at all. the pump itself seems to be working also as indicated from the rpm numbers.
as a reference, my coolant temp is always above 30°C. this is the temp at ~33°C ambient. but 13900K is a hot chip so not an apple to apple comparison.


THAT being said, the coolant temp of 29°C,
1. how long did u do the load test?
2. what kind of load ur giving to the CPU to reach 95c?
3. what's ur room temp? what's the radiator orientation (front mounted, top mounted etc)?

and since 95°C is acceptable for 7950X as it's designed that way, the performance scaling is not exactly throttling performance down when it reaches 95, but it targets 95 and scale the performance from there.
for example, if u have shit cooler, it shoots up to 95°C, and u may be getting 4.5GHz on all core load.
if u have good cooler, it still shoots up to 95°C, but u are now getting a better frequency on all core load, say 5.1GHz.

so what is the scaling look like on ur end when u stress all the threads? u mentioned that it can sustain 5.4GHz during all core load.

my initial thinking is that we might be overthinking. it looks like it's working just fine. CPU shooting up to 90+°C immediately is very normal in these few generations. even older generations if u idle at 30°C, and started a heavy load, the temp would shoot to 70-80°C under a few seconds.

I oso of the opinion with lolzcalvin that you might be overthinking too much on small details, like say if you run a CPU burntest maybe Cinebench R20/23 for 3-4 hours and you dont see a big change in CPU temps, coolant temps, & clockspeed by much it would tell me your CPU isnt throttling at all and your AIO is capable to handle it.

But if you still doubt that AIO, maybe its best to settle your mind and get another AIO (the best is Arctic LF2 or 3) to do comparison test. If they perform around the same then at least you know.

during load, u say it barely reaches 32°C right? the previous 29°C coolant temp was also 1-2 hours long load? if that's the case then it doesn't seem the heat is transferred properly, or the coolant in the AIO is magical.
what TIM r u using? Kryonaut? PTM7950?

there may still be a chance the contact between the pump and ur CPU is uneven, or there's a problem with the paste (which is unusual).
if pump malfunctions, can be easily tested by touching the 2 tubes to ur radiator if u suspect the rpm number is a lie. if one is hotter than the other then there ain't got no malfunction.

if ur reseating the pump, wipe the thermal paste away with alcohol pad then reapply it, preferably stuffs like Noctua NT-H2, Honeywell PTM7950, Corsair XTM70 etc. can use Kryonaut if u have it, just that it has issues of pumping out down the road after a while, essentially degrading performance.
no need to apply too much, more thermal paste does not equate to better heat transfer. better yet just make a fine thin layer on the IHS with a spreader.
when u mount ur pump make sure to put even pressure to all 4 corners, criss-cross pattern (top-left -> bottom-right -> top-right -> bottom-left and repeat). using ur screwdriver, just fasten until ur 2 fingers turning the screwdriver no longer has the force to turn the screw on all 4 corners.
then it's time to actually tighten it, again criss-cross pattern, with even revolution. like spin 3 times on each side and repeat.
but don't overtighten it to the point u have a hard time turning the screws with ur wrist. just tighten them to the point of the force of ur wrist (not the force of ur arm). when it feels like it's stopping, just stop.

then recheck the coolant temp during load, see how slow or fast it passes 30°C

Hmm not sure if that is AM5 normal behaviour but if your worried, maybe better to get another AIO to make comparison?

As for PTM, LTT did a review where they bought from a seller in Ebuy7 so if its legit to them maybe you can search for the same seller. But if you really want total peace of mind for authenticity, why not consider TG Kyrosheet? Their about the same performance and can be reused.


Just remember to cut to size as you dont want it to contact the LGA ILM in case of short.

legitimate PTM7950 is hard to find because a seller needs to buy them in bulk from honeywell instead of 1pc. a lot ppl say the pads sourced from china are legit but many actually couldn't tell whether it's legit or not other than the pads do actually reduce temps like what any pad would've done.
I know MODDIY and LTT store sell legit PTM7950 sourced directly from honeywell USA but they're NA stores so not much choice over here. however I notice that both stores are selling them at 0.25mm thickness and have emphasized as such. and yes, they're more expensive than aliexpress' counterparts.

if u feel like it's risky then go for safer route such as Noctua NT-H2 which is better than PTM7950 (yes u didn't hear that wrong)
if sked NT-H2 also fake then I show u one of the legitimate stores that's selling it