Topic: New Pictures of 2nd GPU HeatSink on Xbox 360 - Update: Video (Read 942 times)

sq24 · « **Reply #60 on:** June 14, 2007, 03:27:00 PM »

Interesting that they took off the thermal pads on the bottom of the mobo. One step forward and two step backs

thecheekymonkey · « **Reply #61 on:** June 14, 2007, 05:22:00 PM »

thats as much as i will be doing, its a customers, and its going back tomorrow now.

Joust · « **Reply #62 on:** June 14, 2007, 05:42:00 PM »

QUOTE(Navillos @ Jun 13 2007, 07:52 PM)

you would think both chips would go to 65nm, as it will cost them less to produce. they arent doing it for us they are doing it for them.

you would, you'd probably be wrong though. The GPU is made by ATI and the CPU us made by IBM. M$ could be waiting until both co's have the 65nm dies ready but somehow i don't believe that. they are too concerned with the bottom line. far more than quality and customer satisfaction.
Or maybe i'm just a cynical ba$tard.....or both

Druggedpolak · « **Reply #63 on:** June 14, 2007, 06:40:00 PM »

Dunno if anyone mentioned this but heatpipes only work when the heatsink it connects to is on the same level or higher. If anyone has a computer motherboard with northbridge heatpipe cooling with an upsidedown case mount they know. The northbridge will get extremely hot in that pc.

So if you stand the 360 vertically, the heatpipe addition won't do anything other than provide a little bit of heat dissipation from the copper. In fact, standing the 360 on the harddrive would provide the best cooling...........
Whyyyy couldn't they just make a short heatpipe into the fan shroud with the heatsink in there.

Heres hope that these revisions stop 3rod for people. My 2nd 360 is going strong

goodl · « **Reply #64 on:** June 15, 2007, 04:54:00 AM »

I wonder what one of these sinks will fetch when they turn up on ebay

RBJTech · « **Reply #65 on:** June 16, 2007, 07:14:00 AM »

QUOTE(Druggedpolak @ Jun 15 2007, 02:16 AM)

Dunno if anyone mentioned this but heatpipes only work when the heatsink it connects to is on the same level or higher. If anyone has a computer motherboard with northbridge heatpipe cooling with an upsidedown case mount they know. The northbridge will get extremely hot in that pc.

So if you stand the 360 vertically, the heatpipe addition won't do anything other than provide a little bit of heat dissipation from the copper. In fact, standing the 360 on the harddrive would provide the best cooling...........
Whyyyy couldn't they just make a short heatpipe into the fan shroud with the heatsink in there.

Heres hope that these revisions stop 3rod for people. My 2nd 360 is going strong

There are many types of heatpipe - these use capilary action (aka wick) not gravity to return the liquid.

The CPU heatpipe uses the same technology, if you look, the liquid needs to return to the base of the heatsink, so it needs to go around the 'U' bend and back UP vertically if the console is stood on it's side ...

Horizontal is best though - that way you get gravity assisted liquid flow on both the CPU and now the GPU as well (gas obviously doesn't have a problem going up hill..) ...

Protonus · « **Reply #66 on:** June 18, 2007, 03:41:00 PM »

I tried to call M$ today to request a new style GPU heatsink hoping that others may be doing the same thing and flooding their call center, lol.

No such luck. Got "Lee" and he had to "Check" to see if they could sell the part, nope. I fed him some social engineering babble but it doesn't help when you're talking to someone who neither knows anything or can do anything. Which is how a corp. like M$ wants their level one techs... I may get zelous and try to get someone higher up but meh.

wyldstallions · « **Reply #67 on:** July 03, 2007, 09:34:00 AM »

I would guess that the heatpipe core is likely to be sintered powder metal wick, (source http://www.bmpcoe.or...m/therm_2.html) have small pore radii and relatively low permeability. The high capillary pumping pressure, achieved through a sintered powder metal wick, allows the heat pipe to operate in any orientation. Other wick structures do not work as well in non-horizontal orientations because they cannot lift the returning working fluid the length of the heat pipe against gravity.

Probably using methanol.

I can't see though that this is an optimal solution. I would have thought it simpler to increase the size of the existing gpu heatsink which is possible if some allowances are made for surrounding components, and adjusting the fan ducting accordingly. Also increasing the gpu fan speed, increasing the diameter of the mesh intake at the right side of the case, changing the board clamping design or getting some cooling to the underside of the board would all help.

Still microshaft probably have a mountain of already broken 360's that need to be refurbished with the minimum of cost or component modification and this fits that bill lets hope they stress tested it a bit more throughly than the original design

Space_Hopper · « **Reply #68 on:** July 12, 2007, 06:07:00 AM »

QUOTE(Pookymeister @ Jun 25 2007, 04:46 PM)

I just got a new Elite last week, and while I haven't opened the case or intend to mess with any of that...I can at least say that after hours and hours of gameplay I do not notice any heat at all if touching the case.
My friend has the premium and thats hot to the touch.
What this translates to, i don't know - but thought it would be good to share.

So the heat coming from the fans must be really hot then, on your console?

Author Topic: New Pictures of 2nd GPU HeatSink on Xbox 360 - Update: Video (Read 942 times)