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Does the PS4 have a heat sink design flaw that leads to vertical noise differences?

badb0y

Member
There's evidence they run hot, but not unreasonably so.

playstation-4-thermal.jpg


That's about 60 degree Celsius at it's hottest point, which isn't outlandish, but it slightly troubling.

What are you smoking?

60 degrees Celsius is WAY below what these processors can handle.

If my memory is correct these chips can go up to 90 degrees without being harmed.
 

tfur

Member
It is only a design flaw if the temperature numbers are outside of the expected operational rage.

Are the temperatures outside of the expected and supported operational temperatures? Do we know the expected rages?
 

Rentahamster

Rodent Whores
It would behoove everyone to know that heatpipe orientation sometimes affecting performance is a fact that has been around for ages. That it also affects the PS4 is plausible, but there are still many scenarios in which it wouldn't make a difference, and the OP's observations are errant or just an isolated case. OP isn't saying it's the end of the world, though. It's just a minor thing.

Edumacate yoselves on heatpipes, people.

http://www.frostytech.com/articleview.cfm?articleID=2466
To see pics, click the link

Metal Sintered Powder Wick Type Heatpipe
The working fluid in the heatpipe is drawn along the length by the capillary action of the porous sintered copper metal lining the inside of the tube. The sintered copper powder is formed in a bonding process so the material is actually hard (not loose). Manufacturing cost for this type of heatpipe is high.​

Grooved Wick Type Heatpipe
Capillary action is effected by the grooves on the inside of the heatpipe. Depending on the shape of the grooves, there is a difference in performance. Manufacturing costs are low with this type of heatpipe because the grooves are easier to make, however the technique is much more susceptible to gravity and can be orientation specific in use. In general, Thermolab state that vertical orientation is best.​

Metal Mesh (felt) Wick Type Heatpipe
More commonly used with CPU heatsinks is a multi-layered metal mesh wick, as seen here. The few times we have dissected a heatpipe here at Frostytech this is the kind of metal wick structure we discovered. In a freshly cracked open heatpipe the wick would be slightly wet.​

How heat pipes work:

http://www.1-act.com/resources/heat...ypes-of-heat-pipes/standard-heat-pipes-cchps/
Heat transfer to the evaporator vaporizes liquid within the wick.

Vapor pressure drives fluid to the condenser
Heat transfer from the condenser condenses vapor at the wick.
Liquid returns to the evaporator by capillary forces generated in the wick

Very good instructional video, with visual demonstration: http://www.youtube.com/watch?v=2vk5B6Gga10
 

Terrell

Member
Isn't there an overheating warning on iphones?
A message that pops up during operation is a HUGE difference from an ever-present dedicated light.
So all I'm saying is that I can see someone being concerned by it, regardless of my own thoughts on the matter. I mean, Sony could have chosen an OS notification for this like you see on iOS devices, but they went with a hardware light, because....?
And that question mark will concern some people. Especially in a post-RROD world. We aren't PC gamers because we wanted to ESCAPE shit like that.
 

TheExodu5

Banned
Another poor reference.

laugh-theory28sz2.gif


A vertical PS4 would be the equivalent of first example in that Noctua pic.

Look again:
Y0QKis2.jpg


The bend is at the top of the heatsink. The vapor will travel down the heatpipe and then condense, at which point the cendensated liquid will have to fight against gravity to climb back up to the thermal plate.
 

badb0y

Member
Ok, since I didn't know what RV02 'normal' vs RV02 'vertical' meant I actually went back and look up the images.
fangxian.jpg

The vertical orientation works better because of the whole design philosophy of RV02/FT02 series of cases.

Heat rises so these cases pull cold air in from the bottom and push it out of the top. I don't think the heatpipe orientation has much to do with it.
 
A message that pops up during operation is a HUGE difference from an ever-present dedicated light.

An LED and some wire cost pennies. People can do dumb shit like block their vents. Having a warning light makes sense to me, probably get fewer people trying to get warranty replacements so I'd say an LED and some wire will ultimately pay for itself.
 

TheExodu5

Banned
Ok, since I didn't know what RV02 'normal' vs RV02 'vertical' meant I actually went back and look up the images.
fangxian.jpg

The vertical orientation works better because of the whole design philosophy of RV02/FT02 series of cases.

Heat rises so these cases pull cold air in from the bottom and push it out of the top. I don't think the heatpipe orientation has much to do with it.

Read the article:

When we installed them in a normal way,(heatpipes of cooler are vertical to ground)

Normal in this case means the second picture (vertical orientation).
 
A message that pops up during operation is a HUGE difference from an ever-present dedicated light.
So all I'm saying is that I can see someone being concerned by it, regardless of my own thoughts on the matter. I mean, Sony could have chosen an OS notification for this like you see on iOS devices, but they went with a hardware light, because....?
And that question mark will concern some people. Especially in a post-RROD world. We aren't PC gamers because we wanted to ESCAPE shit like that.

I don't see a difference between a light that shows up if it overheats after it turns the system off than a warning on the screen, they are both overheating warnings.
 

TheExodu5

Banned
i suggest people first educate themselves on how hot PS4 runs in vertical position vs horizontal.

And result is:
http://www.planetextech.com/profiles/blogs/playstation-4-thermal-images

It works the same. Hottest vertical temp they recorded was 141F and hottest horizontal was 140F.

This was recorded by using FLIR E8 Thermal Camera, which is $6k.

So, evidence shows that position is probably insignificant.

*sigh* It is the same temp because the fan spins faster.
 

Xyphie

Member
i suggest people first educate themselves on how hot PS4 runs in vertical position vs horizontal.

And result is:
http://www.planetextech.com/profiles/blogs/playstation-4-thermal-images

It works the same. Hottest vertical temp they recorded was 141F and hottest horizontal was 140F.

This was recorded by using FLIR E8 Thermal Camera, which is $6k.

You'd have to know the fan speed in each direction before you could say it works the same though. A thermal measurement is not enough data points.
 

Minions

Member
*sigh* It is the same temp because the fan spins faster.

Then what is the issue? I showed DB ratings in comparison to the Xbox One; You said they are irrelevant. Considering they are running similar internals I don't see the issue.

Again:
http://www.gamefront.com/how-loud-is-the-xbox-one-compared-to-ps4/

If the PS4 and Xbox One are the same volume essentially from 1 meter away then orientation does not seem to make that much of a difference. Unless you are saying Sony's fans that rev up are as quiet as the Xbox Ones fans.
 
I feel like it behooves someone to bring up that there are many reasons that people may be perceiving that the PS4 is louder when placed vertically, but it doesn't actually mean that's necessarily the case, or if it is - that it's being caused by the heatpipes, or even the fan.
 

TheExodu5

Banned
So maybe a more appropriate title would be, PS4 fans louder when vertical

Why? It's still a design flaw that may have been avoidable.

I feel like it behooves someone to bring up that there are many reasons that people may be perceiving that the PS4 is louder when placed vertically, but it doesn't actually mean that's necessarily the case, or if it is - that it's being caused by the heatpipes, or even the fan.

Yes, that is a possibility.

Unfortunately I do not have the necessary equipment or setup to actually collect any data based on my hypothesis.
 
A device works oh so slightly better when in one position than the other, but still operates normally and as intended in both positions

=/= design flaw

It was found that the PS3 runs cooler when horizontal. Design flaw? Come on.
 

Rentahamster

Rodent Whores
i suggest people first educate themselves on how hot PS4 runs in vertical position vs horizontal.

And result is:
http://www.planetextech.com/profiles/blogs/playstation-4-thermal-images

It works the same. Hottest vertical temp they recorded was 141F and hottest horizontal was 140F.

This was recorded by using FLIR E8 Thermal Camera, which is $6k.

Judging by how many posters were critical of the OP while not knowing that the PS4 uses heatpipes in its heatsink design, I'd say it's important to know.

The test you reference shows that the PS4 runs well enough in either orientation for consumer use, demonstrating, like I pointed out earlier, that this probably isn't a huge issue to be worried about. It, however, does not refute the OP's hypothesis.
 

TheExodu5

Banned
You guys are taking the word "flaw" to heart a bit too heavily. A flaw does not imply a catastrophic failure, simply an imperfection.
 
Why? It's still a design flaw that may have been avoidable.



Yes, that is a possibility.

Unfortunately I do not have the necessary equipment or setup to actually collect any data based on my hypothesis.

Maybe, I guess, I dunno too much about these things, just trying to educate myself by these posts. I actually have mine vertical and I do notice the fans more, but I had in the cabinet before when it was horizontal. Wish I could do a proper test, surprised none of these sites have.
 

AlexMogil

Member
I'm so dumb I didn't realize that gravity on cooling could even make the slightest difference.

I'd be curious as to what a dangerous (in terms of stability or longevity) temperature would be on the PS4.

Surely Sony has destroyed many a console in testing. Course we'll never know those numbers, same with Microsoft.
 

nded

Member
OP, maybe you can manufacture and sell a PS4 vertical stand that allows one to stand the console up on the other end.
 

chaosblade

Unconfirmed Member
So why not test this hypothesis?

Run the PS4 in the standard vertical position, and then lean it up on it's front or something so the heatpipes are horizontal and see if it runs quieter. If it does, the OP is probably right. If it doesn't, the OP would be proven wrong.

Edit: beaten.
 

Minions

Member
keep fighting the good fight. Lol at these last comments.

From what I can tell the PS4 fans speed up substantially more than the Xbox One's do.

PS4
ps4noise.jpg


Xbox
xboxonenoise.jpg


If you look at Gaming/Installing/UI the Xbox One gets hotter than the PS4, but remains a little quieter. (as referenced by the close measurements) the PS4 gets louder (53DB when directly at the console, but stays 4-5 degrees cooler); Design choices I guess.

Perhaps if you request it, DF can test the two orientations for you and measure the DB difference (if there is one)
 

badb0y

Member
So why not test this hypothesis?

Run the PS4 in the standard vertical position, and then lean it up on it's front or something so the heatpipes are horizontal and see if it runs quieter. If it does, the OP is probably right. If it doesn't, the OP would be proven wrong.

Edit: beaten.

According to those pictures you would just need to flip on the other side.
 

Hagi

Member
So how much louder are we talking? PS3 vs Moped? Only way I'll be able to know if this flaw is something worth thinking about.
 
You guys are taking the word "flaw" to heart a bit too heavily. A flaw does not imply a catastrophic failure, simply an imperfection.

I think the problem is the implication that this is a big deal.

Why not instead say "PS4 fan and cooling designed to increase air flow when vertical to compensate for barely decreased heat dissipation. A trade off of the design to keep the console itself compact."

Flaw sounds like they didn't think of it and it could potentially be catastrophic.
 

marrec

Banned
Some great information in this thread about heat pipe orientation regardless of the operation of the PS4. Obviously it's something to take into consideration.

I wonder if the engineers were aware of the potential difference.
 

tfur

Member
You guys are taking the word "flaw" to heart a bit too heavily. A flaw does not imply a catastrophic failure, simply an imperfection.

Maybe, but I see it differently. Flaw in design suggests a design that is prone to, or will operate outside of the expected design. Further it is meant to suggest an increased probability to operate outside of range, to include possible failure.

We need expected operation temperature ranges. As of now, they are the same in either position.
RPM fans speeds. Only for your knowledge, but let it be known that device maintains the same operations temperature in either position.

I really do not think you have offered any real details yet.
 

chaosblade

Unconfirmed Member
According to those pictures you would just need to flip on the other side.

That would put it in a more optimal vertical position, but I think a horizontal test would make the most sense. Doing both wouldn't hurt either, just because it should be so easy to do.
 

marrec

Banned
I think the problem is the implication that this is a big deal.

Why not instead say "PS4 fan and cooling designed to increase air flow when vertical to compensate for barely decreased heat dissipation. A trade off of the design to keep the console itself compact."

Flaw sounds like they didn't think of it and it could potentially be catastrophic.

Definitely might not be catastrophic, but I would have brought it up to the engineer in charge if I were working QC on the hardware.

The question would be:

What are the potential issues in mounting the heatsink in a different orientation.

Perhaps this is simply the best possible orientation.
 

DBT85

Member
There's evidence they run hot, but not unreasonably so.

playstation-4-thermal.jpg


That's about 60 degree Celsius at it's hottest point, which isn't outlandish, but it slightly troubling.

60 degrees is nothing to worry about for a GPU.

You'd have to know the fan speed in each direction before you could say it works the same though. A thermal measurement is not enough data points.

Indeed. Just running at the same temp only means that the fan is powerful enough to keep the system at a set temp. Without knowing what speed the fan is at you can't say if it is similarly thermally efficient one way or another.
 
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