7800x3d too hot?

[SENSHIII]

 

Hi, i just finished my build and discovered that the cpu is a bit hot, even with really good cooling. Wanted to ask for some opinions.

 

CPU: 7800x3d

 

AIO: Liquid Freezer 3 360 mm top mounted exhaust

 

Case: H9 Flow

 

Mobo: Tomahawk B650

 

Fans: Arctic P12 ARGB 120mm
1x exhaust back
3x intake front / side
3x intake bottom

 

Ambient temperature around ~23c

 

Newest drivers & bios, Win 11, no bios settings changed except EXMP, Memory Context & Power down.

 

83c max & 80c average temp and constant 4.8ghz in Cinebench 23, all fans & aio running max. Low score aswell, 17300 multi score with stock settings. Idle is ~53c & ~56c with browser open

 

I'm new to AM5 and it's my first AIO, but these things don't feel right to me. Many people even said that the AIO is overkill. I'm concerned since some people get lower temps with worse cooling / air cooler.

 

Still have warranty if something's wrong with the parts.

What are your thoughts?

[RONOTHAN##]

3 minutes ago, SENSHIII said:

Low score aswell, 17300 multi score with stock settings

That's within 200 points of what I'd expect from a bone stock 7800X3D, I wouldn't call that a low score. Given R23 tends to float the score around 500 points from run to run, I'd just call that margin of error. 

 

4 minutes ago, SENSHIII said:

83c max & 80c average temp and constant 4.8ghz in Cinebench 23

About what I'd expect. The 7800X3D is a weird chip thermally, where it isn't that hard to cool since it doesn't output that much heat, but because it's very thermally dense the hard part is actually extracting the heat from the chip. Because of that, a 360mm AIO really won't perform much better than a $35 air cooler. 

 

7 minutes ago, SENSHIII said:

Idle is ~53c & ~56c with browser open

So not actually idle? What is the temps just after boot before anything is being opened up? 

[SENSHIII]

13 minutes ago, RONOTHAN## said:

That's within 200 points of what I'd expect from a bone stock 7800X3D, I wouldn't call that a low score. Given R23 tends to float the score around 500 points from run to run, I'd just call that margin of error. 

 

About what I'd expect. The 7800X3D is a weird chip thermally, where it isn't that hard to cool since it doesn't output that much heat, but because it's very thermally dense the hard part is actually extracting the heat from the chip. Because of that, a 360mm AIO really won't perform much better than a $35 air cooler. 

 

So not actually idle? What is the temps just after boot before anything is being opened up? 

Sorry, worded it bad. Getting 53c after boot & nothing open

[RONOTHAN##]

1 minute ago, SENSHIII said:

Sorry, worded it bad. Getting 53c after boot & nothing open

OK, that changes things slightly. 53C is definitely a bit warm, double check Task Manager to see if there is something like Discord or Spotify running on startup using the CPU. If that doesn't reveal anything, double check the AIO installation, IIRC the LF3 has an offset mount by default so it's possible you installed offset in the wrong direction, or something like the protective film wasn't removed. 

[SENSHIII]

29 minutes ago, RONOTHAN## said:

OK, that changes things slightly. 53C is definitely a bit warm, double check Task Manager to see if there is something like Discord or Spotify running on startup using the CPU. If that doesn't reveal anything, double check the AIO installation, IIRC the LF3 has an offset mount by default so it's possible you installed offset in the wrong direction, or something like the protective film wasn't removed. 

Just checked again, nothing's open. Pretty sure that the AIO is mounted correctly & i removed all protective film.

 

Also sorry if i'm annoying, just concerned that somethings faulty.

[PDifolco]

47 minutes ago, SENSHIII said:

Just checked again, nothing's open. Pretty sure that the AIO is mounted correctly & i removed all protective film.

 

Also sorry if i'm annoying, just concerned that somethings faulty.

Not really anything faulty imo, idle temps are a bit high as I got better with a TR PE120 on a 7950x3d, but really it doesn't matter, what's your fan curve?

Full load temps are as expected as is Cinebench score, reviewers run it on bare windows where irl you always have a couple percent CPU usage from all background software and score is thus reduced 

[Somerandomtechyboi]

3 hours ago, SENSHIII said:

83c max & 80c average temp and constant 4.8ghz in Cinebench 23, all fans & aio running max. Low score aswell, 17300 multi score with stock settings. Idle is ~53c & ~56c with browser open

Youll get the same temps even with a single tower

 

7800x3d is easy to cool but it cant dissipate its heat due to the cache ontop of the cores and then theres the garbage ihs ontop of that so pretty normal to see 80c ish

 

only thing you can do to lower temps is to run direct die but you wouldnt do that unless you are overclocking and have a board with eclk support, and you wont get far overclocking even with direct die due to the cache trapping the heat

 

Since you have a beefy aio you can turn the fans down alot even under full load so no you didnt just waste your money on an aio

[SENSHIII]

4 hours ago, Somerandomtechyboi said:

Youll get the same temps even with a single tower

 

7800x3d is easy to cool but it cant dissipate its heat due to the cache ontop of the cores and then theres the garbage ihs ontop of that so pretty normal to see 80c ish

 

only thing you can do to lower temps is to run direct die but you wouldnt do that unless you are overclocking and have a board with eclk support, and you wont get far overclocking even with direct die due to the cache trapping the heat

 

Since you have a beefy aio you can turn the fans down alot even under full load so no you didnt just waste your money on an aio

Tried setting the fans to 80% instead of 100%, got 85c in cinebench 23. These temps are driving me crazy..

[GuiltySpark_]

1 hour ago, SENSHIII said:

got 85c in cinebench 23.

I'm confused, 85c is normal for a stock 7800x3D under 100% load.

 

 

[SENSHIII]

10 minutes ago, GuiltySpark_ said:

I'm confused, 85c is normal for a stock 7800x3D under 100% load.

 

 

Idk, it just seems too hot. As I said, many people get lower temps with worse cooling.. Like seeing others get max ~75c with LF2 280mm makes me concerned. And I'm not sure what temps I'm going to get when summer hits.

 

Idle 50c doesn't seem to match most of the 7800x3's I've seen either.

 

But I guess it is what it is, seems like it's supposed to almost hit the temp limit even with low ambient temp & better cooling than others.

[GuiltySpark_]

1 minute ago, SENSHIII said:

Like seeing others get max ~75c

Are they undervolted?

 

2 minutes ago, SENSHIII said:

But I guess it is what it is, seems like it's supposed to almost hit the temp limit

That's exactly how Zen4 is supposed to operate. It was widely advertised as such. You can improve this with Curve Optimizer undervolting to a degree. 

 

I see ~80-82c peak and 17800 score in Cinebench R23 with an Assassin IV air cooler. 

 

TBH worrying about temp is a bit of a waste of time if the system is performing as it should.