3900x full load at 95c even using liquid metal and copper heat sink. Can it be lower?

[pureexe]

This is my first PC build in my life.  I want to build HTPC for gaming and movie propose so i decide to build PC follwing these spec.

 

Spec:

   CPU: Ryzen 3900x

   GPU: GTX 1080Ti Founder Edition (it's second hand but still work great)
   RAM: 32GB (Klevv x bolt 16GBx2)

   Motherboard: Aorus B450i (It's ITX since it will be HTPC and B450 because my nvme and GPU don't need PCI gen 4)

   PSU: 650w (SilverStone SX650-G)

   NVME: Transcend 1TB

   Case: Silverstone RVZ02

 

At ideal temperature is about 50c (ambient 25c). Not Great, Not Terrible.

However, CPU is full load. (for example, run cinebench) temperature hit 95c and clock speed went down.

 

My cooler is Thermalright AXP-100 which is TDP 180w, (Ryzen 9 stock cooler is 135w) but people is stay around only at 80 i also replace stock fan with noctua a12x15 and using liquid metal (conductonaut)

Spoiler

 

Ok, maybe something wrong with IHS contact so i decide to remove cooler to look into it. I can see "RYZEN" under liquid metal. (Show in attach image) maybe i need to add more liquid metal. I also wipe old liquid metal out with Acetone (99.9%) and clean the surface as most as possible with isophopy alchohol (99.9%)

Spoiler

 

 

However, after add liquid metal. temperature still at 95c. this time i remove cooler to look into it again. It cannot see "RYZEN" anymore (show in attach image). So the problem isn't liquid metal is too few.

 

Spoiler

 

 

 

 

 

 

Can i go lower than 95c to avoid performance drop?

 

Thank you.

[DailyProcrastinator]

95 degrees is HOT, something is wrong here. TLDR but hopefully someone has some good advice for what you can do.

 

My main thing is what are your voltages like?

[Sauron]

Liquid metal isn't typically recommended as a substitute for "normal" TIM, it's mostly used for delidding - part of the reason is that it's hard to apply properly on the IHS. I suggest you clean the cpu and the cooler thoroughly with alcohol (which by the way you should do every time you apply new paste, just adding more as you did isn't a good idea) and trying normal paste.

 

Other than that... what case are you using? Is there a fan grill that allows the cooler to get the air it needs? Try running it without closing the case to see if it performs better. Also check with the stock cooler for reference.

[Jurrunio]

How much voltage is the CPU core taking when full load starts and what's the board's TDC, EDC and PPT values?

[pureexe]

11 minutes ago, TheDailyProcrastinator said:

95 degrees is HOT, something is wrong here. TLDR but hopefully someone has some good advice for what you can do.

 

My main thing is what are your voltages like?

 

10 minutes ago, Jurrunio said:

How much voltage is the CPU core taking when full load starts and what's the board's TDC, EDC and PPT values?

 

Here is the voltage info when run at full load. I'm using stock setting without change nothing.

Spoiler

 

[pureexe]

13 minutes ago, Sauron said:

Liquid metal isn't typically recommended as a substitute for "normal" TIM, it's mostly used for delidding - part of the reason is that it's hard to apply properly on the IHS. I suggest you clean the cpu and the cooler thoroughly with alcohol (which by the way you should do every time you apply new paste, just adding more as you did isn't a good idea) and trying normal paste.

 

Other than that... what case are you using? Is there a fan grill that allows the cooler to get the air it needs? Try running it without closing the case to see if it performs better. Also check with the stock cooler for reference.

I will try normal paste.

 

A lot of people talking about great thermal conductivity in liquid metal. so i pick liquid metal. but i will try normal paste.

[pureexe]

18 minutes ago, Sauron said:

Liquid metal isn't typically recommended as a substitute for "normal" TIM, it's mostly used for delidding - part of the reason is that it's hard to apply properly on the IHS. I suggest you clean the cpu and the cooler thoroughly with alcohol (which by the way you should do every time you apply new paste, just adding more as you did isn't a good idea) and trying normal paste.

 

Other than that... what case are you using? Is there a fan grill that allows the cooler to get the air it needs? Try running it without closing the case to see if it performs better. Also check with the stock cooler for reference.

For case, I'm using Silverstone RVZ02. here is picture of this pc.

Spoiler

 

[Jurrunio]

11 minutes ago, pureexe said:

 

 

Here is the voltage info when run at full load. I'm using stock setting without change nothing.

  Hide contents

 

Maybe that's the limit of the cooler. Ryzen is known for being hard to cool (high heat density) so no surprises.

[Sauron]

3 minutes ago, pureexe said:

A lot of people talking about great thermal conductivity in liquid metal.

Yes but again, that's mostly for delidding; liquid metal performs better than normal paste between the chip and the IHS. This doesn't apply to your CPU because all ryzen 3000 chips are soldered to the IHS which is already about as good as it gets in that area.

[pureexe]

8 hours ago, Sauron said:

Yes but again, that's mostly for delidding; liquid metal performs better than normal paste between the chip and the IHS. This doesn't apply to your CPU because all ryzen 3000 chips are soldered to the IHS which is already about as good as it gets in that area.

I already repaste with normal paste (Noctua NH-1) it still hit 95c

 

Spoiler

 

[Sauron]

5 hours ago, pureexe said:

I already repaste with normal paste (Noctua NH-1) it still hit 95c

 

  Hide contents

 

That's way too much paste...

 

anyway at this point either the cooler is just not good enough despite the advertised TDP rating or your CPU is being overvolted and/or overclocked by the motherboard for some reason. Check in the bios that no "auto oc" settings are enabled.

 

Or maybe that adapter plate is causing the cooler to make bad contact... have you tried the stock cooler?

[pureexe]

6 minutes ago, Sauron said:

That's way too much paste...

 

anyway at this point either the cooler is just not good enough despite the advertised TDP rating or your CPU is being overvolted and/or overclocked by the motherboard for some reason. Check in the bios that no "auto oc" settings are enabled.

 

Or maybe that adapter plate is causing the cooler to make bad contact... have you tried the stock cooler?

I just try stock cooler with normal thermal paste (Noctua NT-H1) temperature of full load is 81 c

 

Spoiler

 

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[Sauron]

Just now, pureexe said:

I just try stock cooler with normal thermal paste (Noctua NT-H1) temperature of full load is 81 c

So yeah, the cooler is probably just not as good as advertised or it's not making good contact because of the adapter. I'd return it if I were you, if the stock cooler is good enough just use that (unless you want to overclock).

[pureexe]

3 minutes ago, Sauron said:

So yeah, the cooler is probably just not as good as advertised or it's not making good contact because of the adapter. I'd return it if I were you, if the stock cooler is good enough just use that (unless you want to overclock).

I cannot close the case if i using stock cooler.  (case cpu clearlance is only 58mm while stock cooler is 96mm).

I may looking for new cooler or new case.

[Sauron]

14 minutes ago, pureexe said:

I cannot close the case if i using stock cooler.  (case cpu clearlance is only 58mm while stock cooler is 96mm).

I may looking for new cooler or new case.

Oh I see, it looked like it would fit in the picture...

[pureexe]

6 hours ago, Sauron said:

That's way too much paste...

 

anyway at this point either the cooler is just not good enough despite the advertised TDP rating or your CPU is being overvolted and/or overclocked by the motherboard for some reason. Check in the bios that no "auto oc" settings are enabled.

 

Or maybe that adapter plate is causing the cooler to make bad contact... have you tried the stock cooler?

Thank you so much. I found that adapter plate is off-center. So i adjust it and the AXP-100 is run at 85c when full load.