Overclock.net banner

[Phanteks] Glacier C399a (waterblock) for AMD ThreadRipper CPUs

12K views 132 replies 32 participants last post by  chew* 
#1 ·



Quote:
The Glacier C399a waterblock from Phanteks is custom-designed for the TR4-socket from the ground up. Crafted to push AMD's high-end CPU's (RYZEN Threadripper) to its limit with a massive copper base and fin surface area. The Glacier C399a is made from premium materials, featuring integrated RGB lighting and VITON sealing from the Automotive and Aerospace Industries to deliver the best quality possible from Phanteks.
This has a copper base with a nickel finish. Available in Satin Black or Silver Chrome. This W/B has 5mm fins.

Check out their homepage for details.
http://www.phanteks.com/PH-C399a.html
 
See less See more
3
#4 ·
I don't know. It makes no sense to make the flow go in that direction and put the holes directly above the fins so they won't get any fluid going through them.

All TR waterblocks should follow the same pattern with the fins in the same direction as the RAM sticks and the holes as close to the upper and lower edges as possible so no areas at the sides or behind them get worse cooling.

Maybe I'm too picky though.
 
#5 ·
Quote:
Originally Posted by Imouto View Post

I don't know. It makes no sense to make the flow go in that direction and put the holes directly above the fins so they won't get any fluid going through them.

All TR waterblocks should follow the same pattern with the fins in the same direction as the RAM sticks and the holes as close to the upper and lower edges as possible so no areas at the sides or behind them get worse cooling.

Maybe I'm too picky though.
There is a slit in the middle, so one of the holes has to be on top of a translucent plate such that water jets through the slit. This block seems to have great fin coverage, compared to everything that's released so far. The fin height is also taller. Everything is equating to more surface area.
 
#11 ·
So it's not just me who can't see a jetplate or any similar central split flow mechanism here then? So confusing, and of course Phanteks never replies back to me unless they want something so hopefully someone else can help answer this.
 
#12 ·
Quote:
Originally Posted by mouacyk View Post

There is a slit in the middle, so one of the holes has to be on top of a translucent plate such that water jets through the slit. This block seems to have great fin coverage, compared to everything that's released so far. The fin height is also taller. Everything is equating to more surface area.
Hard to tell from the images, but it looks like a divider to keep the flow from going over the fins, forcing it to go through them.
 
#13 ·
I'm a WC noob so sorry if this is dumb. Looking at the pic it looks like the water coming in could simply go straight across to the other hose and out. Since water takes path of least resistance wouldn't this cause the sides to have little to no water flow and cause heat spots? Wouldn't this design mainly just cool the area of fins running thru the center from hose to hose?

Again I know basically nothing of WC so was just curious.
 
#14 ·
We're all thinking there's more to the block than what's being shown, otherwise it doesn't make complete sense.
 
#17 ·
This block looks like it may work really well with a TEC chiller set-up...interesting!
thumb.gif
 
#18 ·
Seems like ALL blocks these days are plenty sexy. Everybody is really doing a great job aesthetically lately. Can't really say anything about the actual performance comparisons though.

Hell, I still think my old Supreme HF is a sexy block!
 
#19 ·
Quote:
Originally Posted by EastCoast View Post

I haven't found a breakdown of this block yet. From this view I don't see any traditional slits that would focus the water on the fins. Furthermore, they are claiming less restriction for 5mm.




Quote:
Originally Posted by Colin1204 View Post

I'm a WC noob so sorry if this is dumb. Looking at the pic it looks like the water coming in could simply go straight across to the other hose and out. Since water takes path of least resistance wouldn't this cause the sides to have little to no water flow and cause heat spots? Wouldn't this design mainly just cool the area of fins running thru the center from hose to hose?

Again I know basically nothing of WC so was just curious.
look at my post above
 
#20 ·
Here is Phanteks advertising pdf

 
#23 ·
Quote:
Originally Posted by Imouto View Post

The holes are on the separation between the dies and the same happens with that separator again between the dies. Most of the heat exchange will occur where it is not needed.
While I can understand how that can be rationalized, do you have any actual test data to support it?
 
#24 ·
Quote:
Originally Posted by mouacyk View Post

We're all thinking there's more to the block than what's being shown, otherwise it doesn't make complete sense.
It makes sense.

If the fins are the flow bottleneck, all that's needed to force water through all of them is that divider that keeps the flow from going over them.
Quote:
Originally Posted by Imouto View Post

The holes are on the separation between the dies and the same happens with that separator again between the dies. Most of the heat exchange will occur where it is not needed.
Water temperature delta within the block is going to be near zero if you have enough flow rate to cool the part in the first place.
 
#25 ·
Quote:
Originally Posted by Blameless View Post

It makes sense.

If the fins are the flow bottleneck, all that's needed to force water through all of them is that divider that keeps the flow from going over them.
Pretty much what I was thinking. If you know fluid dynamics at all, water will flow through the area of least resistance, but with enough applied to a certain area flow (albeit lower depending on rate, resistance, and pressure) will occur in a whole given area.

This won't act as a venturi with high flow rate in the middle since the sides are not a static material.
 
#26 ·
Quote:
Originally Posted by doyll View Post

While I can understand how that can be rationalized, do you have any actual test data to support it?
Water is much like air or electricity, they always find the less resistance path and follow it. If you put fins on something and don't force the coolant through them it will find another path. The only place where you see such thing is below the separator, between the CPU dies.
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top