View Full Version : MCW-50T/Radeon Users?
Road_Runner
07-01-2003, 09:57 AM
Are you guy running your mcw-50t's with the shim on, or shim removed from your 9700/9800's?
Road_Runner
07-01-2003, 07:32 PM
10 lookies and no responses? What...do I have the plague here? :)
mrzee
07-01-2003, 08:17 PM
The core of the 9800pro is slightly higher than the shimm,
no need to remove it. I've used the mcw50-t on 4
different 9800's to date and never removed the shimm.
Ruantic
07-01-2003, 08:43 PM
Shim on but I did carefully cut mine down, before i I got the swifty block I pulled the stock hsf, it barely made any contact, lapped the hsf, and cut the shim down even with the core... this was my 9700P
Road_Runner
07-02-2003, 02:17 AM
Originally posted by Ruantic
Shim on but I did carefully cut mine down, before i I got the swifty block I pulled the stock hsf, it barely made any contact, lapped the hsf, and cut the shim down even with the core... this was my 9700P
how exactly did you "cut it down"?
Ruantic
07-02-2003, 06:24 AM
Used a small jewelers file, sandpaper, and much time, it was quite tedious..
Colin
07-02-2003, 07:03 AM
The MCW50-T actually touches the core without having to remove or mod the shim.
Just make sure you tighten the nuts enough and you're set. ;)
Road_Runner
07-02-2003, 04:44 PM
Originally posted by Colin
The MCW50-T actually touches the core without having to remove or mod the shim.
Just make sure you tighten the nuts enough and you're set. ;)
on a 9700 as well as a 9800?
I removed the shim on my 9500np-->9700pro. I found the shim was just a hair higher than the core on my card.
BTW, just use a straight edge when you take the original heatsink off... that way you'll actually see if yours is too high.
Tedinde
07-02-2003, 04:57 PM
Mine seems to be perfect, put a very small amount of paste on it, Pushed it down a bit and perfect contact, I left the shim on.
mdzcpa
07-02-2003, 04:59 PM
Originally posted by Road_Runner
on a 9700 as well as a 9800?
Yes.
In fact, if you plan on using the MCW-50T do your self a favor and don't touch the shim. The MCW-50T (and the MCW-50) is milled along the out edges of the coldplate (and block surface for the non T) to accept the shim. You will get excellent die contact and plenty pressure with the shim in place.
This applies to both the 9700 and 9800.
Originally posted by mdzcpa
The MCW-50T (and the MCW-50) is milled along the out edges of the coldplate (and block surface for the non T) to accept the shim.
My shim was still in the way on my 9500np even though the MCW-50T is milled on it's edges... :shrug:
mdzcpa
07-02-2003, 05:18 PM
Originally posted by Jeff
My shim was still in the way on my 9500np even though the MCW-50T is milled on it's edges... :shrug:
Yes...that is very odd indeed. Most of the time users find that the shim surface is only a tiny tiny bit higher than the GPU core surface. This is why the oem hsf unit with that totally flat surface sometimes rides a few mm above the core but can still be cooled if enough paste is used. The MCW-50 milling is much deeper than the thickness of the shim, so it's hard to say why you did not have perfect contact. In fact, I've sold a handful of the MCW-50 blocks with 9700/9800 and all of them had perfect fitment.
strange :confused:
Road_Runner
07-02-2003, 05:41 PM
Originally posted by mdzcpa
Yes.
In fact, if you plan on using the MCW-50T do your self a favor and don't touch the shim. The MCW-50T (and the MCW-50) is milled along the out edges of the coldplate (and block surface for the non T) to accept the shim. You will get excellent die contact and plenty pressure with the shim in place.
This applies to both the 9700 and 9800.
I actually have the mcw-50t on my 9700 (see sig). The reason I started the thread is to know, without taking it all apart if there was any potential gain in cooling via better core contact by removing the shim. My shim is currently on.
Thanks for the input guys.
Ruantic
07-02-2003, 06:21 PM
BTW, just use a straight edge when you take the original heatsink off... that way you'll actually see if yours is too high.
Not all 9700P are like mine was, when I got it, i removed the heatsink, to put some AS3 on it, after removing the thick gob of whatever they had on it, I put some cheap paste on just to check contact, lol NONE, checked my heatsink with a straight edge, it was anything but flat. After lapping it to a decent surface, retried the contact test, nothing yet. So I had no choice but to cut the shim down, about 6 hours total work to put some AS3 on :( ... I did gain some decent core speed for my effort though. A few months later I moved to the swifty block, it was a perfect fit.
Method Man
07-02-2003, 06:50 PM
I still have the shim on mine :)
gouda96
07-06-2003, 03:42 PM
Is it dangerous to put an mcw50-t or another hsf on without the shim? How weak is the core of the radeon? I am going to be putting mcw50-t(if i can ever get one) on a r9800p, and an sk6+ on an fic9700. I want to know if i can put them on without the core without a serious risk of ruining the card, especially the sk6, being that as you guys have said the mcw50 should fit fine due to the milled edges.
gouda96
07-06-2003, 03:42 PM
Is it dangerous to put an mcw50-t or another hsf on without the shim? How weak is the core of the radeon? I am going to be putting mcw50-t(if i can ever get one) on a r9800p, and an sk6+ on an fic9700. I want to know if i can put them on without the core without a serious risk of ruining the card, especially the sk6, being that as you guys have said the mcw50 should fit fine due to the milled edges.