Go Back   Pro/Forums > ProCooling Geek Bits > Hardware and Case Mod's
Password
Register FAQ Members List Calendar JavaChat Mark Forums Read

Hardware and Case Mod's You Paint it, Cut it, Solder it, bend it, light it up, make it glow or anything like that, here is your forum.

Reply
Thread Tools
Unread 08-29-2005, 03:55 AM   #1
coolmiester
Cooling Neophyte
 
coolmiester's Avatar
 
Join Date: Feb 2004
Location: NE - UK
Posts: 29
Default Making an NV-68 Bracket to fit 7800GTX Card

I couldn't wait any longer for the new Danger Den NV-78 blocks to arrive so took it upon myself to have a go at modding an NV-68 block and just thought i would share my new creation with everyone.

The main problem was the Lucite back plate on the NV-68 which covered some of the memory chips on the new 7800 cards and i've seen a few people hacking the Lucite to fit always looks a bit getto for my liking so decided to make one from scratch.

Got myself a bit of 6mm aluminium and using the original Lucite top marked out the four holes to get a reference then basically measured where the chips were and laid it all out on paper so i could sketch the basic shape.

Tried to keep all the lines nice and flowing so it looked nice......obviously

Once i was happy with the shape i cut it out so i had a template to lay on top of the card lining it up with the holes to make sure it all fitted nice, then stuck the template onto the aluminium.



Then out with trusty fret saw and cut round the paper template


and ended up with this nice little object which when placed underneath the original Lucite plate you can see its basically the same but with the curves much more exaggerated.




Quick bit of lapping to the top and sides


and then onto the polishing wheel


Then clamped the Lucite top to it to get the holes lined up and exactly and went ahead and drilled the 4 holes followed by cutting the neoprene to size




The next bit has been seen a few times before but i may as well run through it incase anyone wants to see how its done.

On the 7800 cards there are also a few resistors that protrude higher than the actual memory preventing the block to come in contact with the bits its supposed to.

I've circled in red the ones on this particular card which is a Gainward 7800Ultra GTX Golden Sample but there may be variations between different cards so it may be worth checking.


Basically what you need to do is identify the protruding resistors and put a small dab of Arctic Ceramique on each one then lay the block on its back and then carefully offer the card down into position. Take the card away and you will be left with a little blob of Arctic Ceramique on the block form the offending resistors..


You will find you only need to dig out about 1mm of copper using a Dremmel with the small grinding bit so it looks something like this...


Obviously brush away all the copper filings and offer the card to the block once more just to make sure you don't get any Arctic Ceramique which providing you ground out the correct area to the correct depth will indicate that the resistors no longer interfere and the card will lay flush onto the block.
You can then follow the NV-68 Mounting Instructions

Anyway, i'll leave you of a few pictures of the finished bracket which show the memory chips can now take ram sinks which in this case are shiny Tweakmonster ones.

I've now got to make another one for the other card and get them put back into the Shinymaster







__________________
Coolercases UK - Danger Den Official UK Distributer


paul@coolercases.co.uk
coolmiester is offline   Reply With Quote
Unread 08-29-2005, 03:56 AM   #2
coolmiester
Cooling Neophyte
 
coolmiester's Avatar
 
Join Date: Feb 2004
Location: NE - UK
Posts: 29
Default

And then there were two




Well i'm not to sure if anyone else has had a go at cooling Sli 7800's with NV-68 blocks so here you go :smile:

Took a bit longer than i would have liked but the polished aluminium brackets fit in good with the shiny case and at last its all back together and being leak tested so should get a comparison temp wise over the stock air cooled later.

Fingers X'd





__________________
Coolercases UK - Danger Den Official UK Distributer


paul@coolercases.co.uk
coolmiester is offline   Reply With Quote
Unread 08-29-2005, 10:18 AM   #3
flatline
Cooling Savant
 
flatline's Avatar
 
Join Date: Aug 2004
Location: uk
Posts: 109
Default

id have been tempted to make the alu suport cool 3 of the 4 ram chips but more time needed to do that

grats very cleen i like it alot
__________________
"<pH> I'll stab you in the genitals with a rusty shank if you touch my computer stuff"
"we are only 'mean' to the persistently ignorant, lazy, and anyone who questions us" BillA
flatline is offline   Reply With Quote
Unread 08-29-2005, 10:37 AM   #4
killernoodle
Thermophile
 
killernoodle's Avatar
 
Join Date: Sep 2002
Location: Charlotte, NC
Posts: 1,014
Default

Damn, dually 7800GTXs?? And I'm still watercooling an antique 9800pro
__________________
I have a nice computer.
killernoodle is offline   Reply With Quote
Unread 08-29-2005, 11:39 AM   #5
allnighter
Cooling Neophyte
 
Join Date: Sep 2004
Location: somewhere in the middle
Posts: 61
Default

Very nice. I have the same prob an am very tempted to try it. I wish I had all the tools at my disposal to achieve such a nice finish. Never the less, I might give it a go and see how it works out. If it doesn't turn out ok I can always pick up a new 78 block . should be out any day now.
allnighter is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 02:33 AM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
(C) 2005 ProCooling.com
If we in some way offend you, insult you or your people, screw your mom, beat up your dad, or poop on your porch... we're sorry... we were probably really drunk...
Oh and dont steal our content bitches! Don't give us a reason to pee in your open car window this summer...