Ive got some spare sinks and was going to put them horizontal. Anybody have a different opinion? I dont know if it matters that much. Here's a pic of the way I was going to mount them.

I mean if you put it horizontal, thats the way the air is coming in, but if you put it vertical, it seems better because thats the direction air is going out


I know it may not even make a hill of beans difference but was curious what everybody else would do.

I would have the fins aiming the same way the GPU heatsink is so that the air being sucked into the GPU heatsink would then also pull the heat from the smaller heatsinks. But then again, that means there is more hot air going into the GPU, whick could be bad....

and the winner is... diagonally!

Are you sure they're even sitting right on the chips? I used the exact same sinks but they wouldn't sit flat because of a slightly raised cap near each one. You also don't want them touching the toasty GPU heatsink because all that will do is tranfer heat to the ram, making them hotter.

I just sawed them in half, I would have mounted them so that the fins were the same direction with the GPU fins but that would have been some tough sawing without a vice.

Yeah Heet, you'll have to cut them down there because of those caps, C4F12 and C5F6, they sit almost twice as high off the board than the RAM chips do.

Personally I'd mount them the other way, same direction as the GPU sink, keep them that size and mill out a spot in the heatsink for the Cap so it never touches the thing.

Yeah indeed face the fins into the GPU heatsink so all the fins run the same way. You'll get far better results this way, and putting them the other way would cause yet another obstruction for air inlet to the GPU heatsink, this is the last thing you'll currently want as its hard enough to create a good ammount of suction through that heatsink to begin with.

jimbobjim: if thats your board you may also want to twist those round and make them fit to allow a better clearer air induction through the GPU heatsink, and of course cool the ram more efficently.

Sweet thanks! I didnt even notice them touching the caps, thanks guys.

Yes they are right. You want them to look like this. Though I wonder if it's best to have the heatsink at there original size than cutting them??? I used a rottary tool with a cutting blade and held the heatsinks with a wrench then sand them to smooth. The reason like said is for heat travel off the fins. If all facing vericially the shroud would remove the heat faster.

LegendaryGamer

http://s194.photobucket.com/albums/z186/Le...rq4clampmod.jpg

KK well you can call me a noob but i have a few questions. What holds the sinks on? I am thinking Artic Silver but like i said i am a noob. and second, Does this mod actually make a difference?

ArticSilver makes a thermal compound that's also a glue for attaching small heatsinks this way. Some small sinks like that come with a double sided sticky tape that's used, but isn't near as good as the AS glue. Yes it does make a difference in the temperature of the RAM chips.

Although i agree with virtually everything, some of the thermal sticky pads, are better than some of the thermal glues available, i have tested plenty of glues against many thermal pads, and many times the thermal pads have won.

And yeah i agree 100% the heatsinks do make a difference, and for those worries about heat temp over the GPU, it isn't really any different to be honest, the heatsinks on the RAM stay cooler from the start, so the overall temp increase through the GPU is basically no different, but allows the RAM to stay cooler from start up.

Cheers

Kool deal, have any links or numbers of thermal tape (and what kind) vs AS Thermal Adhesive?

Ya i just ordered AS5 thermal adhesive. Everything I read said that the thermal tape is BS. It would figure as I have buttloads of the tape (no wonder they give this stuff away lol).

Anyways, thanks for everyones input! Glad I asked too because I wasn't even considering the caps and that could of been disasterous


*one not so funny thing, when I opened the 360 (it had been 4 months since it had been opened last), there was a nice silver picture nail just kinda hanging out on the mobo!


My GF was hanging pictures a couple of months ago so she has since had her picture hanging priveleges revoked

Your photobucket album is locked so how can i view that pic you posted? I am interested in doing this mod to my box and need more input

For some reason I cannot post pics??? Here is my shared link.
http://s194.photobucket.com/albums/z186/Le...ox360Mod023.jpg



LegendaryGamer

That is pretty cool man. where did you get that air cooler over your GPU?

thats an Iceberg 4 Pro. Those are the fans I have on my cpu and blowing to my gpu sink. They are small, powerful, and lit up like Christmas trees.

Ive never seen it on the 360 GPU though. Interesting. Wonder what the difference is between the Pro and the stock GPU sink.....

The VGA heatsink is a Vantec Iceberq 4. Good heatsink because it's pure copper and comes with ram copper heatsinks though one problem is it's a passive heatsink which draws air from case and push heat away from fins of case. The DVD rom drive is a few cm over the heatsink so it get less air. With the DVD rom ove though the temp range is 111 Fahrenheit to 122 Fahrenheit and with the DVD rom drive removed the temps range from 109 Fahrenheit low and 117 Fahrenheit high. If you make a shroud guide for this heatsink the temps would be better. Im working on putting my Xbox 360 in a new case with more room to beath where the DVD rom dosen't cover over the heatsink. Im still in my testing and Modding stage.

LegendaryGamer

The difference is the stock is aluminum so it cools faster but dosen't heat up fast so heat is trapped in one spot longer and that's why there is a need for the shroud mod that the tuts have. To help guide the heat off the fins faster. The 12v mod help suck away the heat from the fins faster. The stock heatsink is also wider than the Iceberq 4. Though both cover the GPU completely the stock heatsink covers 2 rams chips that need covering of some heatsink.

The stock heatsink is not touching the 2 ram chips so it's like having a frying pan lifted over a fire in the ram spots. You can fit that problem though by putting thermal pads on the ram when you fit the stock heatsink back over the GPU or cut the stock where the ram is exposed. Though I think the stock would have to be redrilled because the holes for the clamp would be cut in the process. If the original stock was made with a copper bottom and had the top fins aluminum then it would be a good heatsink also to touch the rams but that is a bad ideal because the heatsink is sharing heat which takes longer to cool because of the sharing. That's why I did this mod plus it look cool if you have a window cut or a side clear mod if you lay your xbox down it looks cool seeing the blue light. Though Im looking for temps drops more than anything. So this is the difference my friend.

LegendaryGamer