Go Back   Hardware Canucks > PC BUILDERS & TWEAKERS CORNER > Case Mods, Worklog & Gallery

    
Reply
 
LinkBack Thread Tools Display Modes
  #21 (permalink)  
Old April 8, 2008, 08:36 PM
biff's Avatar
Hall Of Fame
F@H
 
Join Date: Jan 2008
Location: Courtice, Ont.
Posts: 1,235
Default

Quote:
Originally Posted by magictorch View Post
Isnt it best to have a slightly bowed heat-sink for newer intel chips so it puts more pressure on the IHS where the cores are? I'm just thinking about the reason behind bowing the apogee GT/GTX cpu blocks which seem pretty flat but can be bowed with a larger o-ring.
The three C2D's I've had a look at using a razor shows the corners are slightly raised so bowing the block helps to get past that. Bowing offers a better chance on average to get good contact... lapping both ensures that.
__________________
Q6600 @ 3.83GHz w/ D-Tek Fusion
Asus P5Q-PRO
2x 2GB PC8000 Mushkin Redlines @ 1020MHz w/5-5-5-12 timings
EVGA GTX 280 (SC?)
OCZ Gamer Xtreme 600W PSU
Cooler Master Cosmos on water
Reply With Quote
  #22 (permalink)  
Old April 8, 2008, 08:38 PM
Cptn Vortex's Avatar
Hall Of Fame
F@H
 
Join Date: May 2007
Location: Vancouver
Posts: 3,755
Default

I think the reason you bow the Apogee is because it is a thinner copper, and when it is NOT bowed, the pressure from the mounting will actually make the Blocks' base Concave. By bowing the Apogee, when pressure is applied, it evens out the Bow, leaving a nice tight flat surface. That is my theory anyway!
__________________
The Vortex H20

Coolermaster ATCS 840 w Window panel
MSI Z77A-GD65
Intel i7 3770K @ 4.6GHZ 1.28v
Galaxy GTX 680 @ 1241MHZ
8GB Mushkin Blackline 1600MHZ 9-9-9-24 1.5v
Asus Xonar Essence STX
OCZ Z-Series GOLD 850W
2 x 128GB Corsair Force GT SATA3 SSD RAID0 :)
Acheiva Shimian Q270 Lite 2560x1440

Benq W500 Pojector.

Watercooling:
EK Supreme HF, EK FC GTX 680 Block, MCR320+Gelid Silent 12 Push/Pull, DD Pump, EK Multioption 100ml Res, EK Coolstream XT 220 RAD Gelid Wings Push/Pull.
Reply With Quote
  #23 (permalink)  
Old April 8, 2008, 08:41 PM
BrainEater's Avatar
Hall Of Fame
 
Join Date: Mar 2007
Location: Calgary
Posts: 2,531
Default

Quote:
Originally Posted by CraigHf View Post
But actually, it was pretty easy. All you have to do, is to take your time while doin' it. Keyword is patience...

QFT.

Absolutely.

Only diff between lapping a heatsink and lapping a proc , is yer wearing a wrist strap.

You dont need you wet sand a proc , as long as you wash it properly after.The whole issue is the metal dust......

-----
gj loose cannon.

-------

As far as lapping goes , remember it's flatness you want , not 'shinyness' they are 2 diff things.It's actually possible to hand lap down to the micron range , using lapidary plates and liquid abrasives....At this range the shinyness is a by-product.

Keep up the good work guys.I'll try to post my own results right away....gonna be a couple days.

__________________
Intel 3930k /rIVe/32 Gb vengeance LP/Nvidia TITAN/760/760/Intel 520's/WD raptors/etc...
Reply With Quote
  #24 (permalink)  
Old April 8, 2008, 08:55 PM
magictorch's Avatar
Hall Of Fame
F@H
 
Join Date: Apr 2007
Location: Annapolis Valley, NS
Posts: 1,838

My System Specs

Default

Quote:
Originally Posted by Cptn Vortex View Post
I think the reason you bow the Apogee is because it is a thinner copper, and when it is NOT bowed, the pressure from the mounting will actually make the Blocks' base Concave. By bowing the Apogee, when pressure is applied, it evens out the Bow, leaving a nice tight flat surface. That is my theory anyway!
Yea thats an original take for sure that makes sense too- -I have found a few links like this that argue its a result of the concave intel chip (as mentioned by Biff), while others say the IHS makes poor contact and needs a push.
PC Modding Malaysia: content / swiftech apogee gt cpu water-block review

Anyway I noticed my TRU-X was concave but it made fantastic contact rocked into the chip nicely. Lapping both surfaces flat sounds like a goodway too..lapping does look real good though
__________________
White Night:: i7920 (4ghz), Rampage III extreme (A1), Mushkin XP 1600 (9,9,9,24),SLI480., white MM horizon.
CPU: Feser 220 int.|Apogee GTZ|S.Res.rev2| MCP655.

GPU: PA120.3|S.Res.rev2|2x EK FC blocks| MCP655.
Reply With Quote
  #25 (permalink)  
Old April 8, 2008, 08:56 PM
biff's Avatar
Hall Of Fame
F@H
 
Join Date: Jan 2008
Location: Courtice, Ont.
Posts: 1,235
Default

Cptn Vortex, That's a good theory and absolutely true to some extent. Clamping the block down will make it want to go more concave than it's at rest shape. I'm not sure to what extent that happens though and really not sure how it could be measured accurately. The common lapping processes that we use will make the surfaces slightly convex, it can't be any other way, however it is I'm sure a very small amount. I wonder if that little bit of two ever so slightly convex surfaces mating under pressure by the mounting screws will make the surfaces meet in better contact.

Of course this worrying of such fine tolerances is somewhat pointless as adding the TIM blows that right out of the water. BrainEater's quite right that it's possible to hand lap it down to micron tolerances by hand but how many of us can spread TIM that accurately?
__________________
Q6600 @ 3.83GHz w/ D-Tek Fusion
Asus P5Q-PRO
2x 2GB PC8000 Mushkin Redlines @ 1020MHz w/5-5-5-12 timings
EVGA GTX 280 (SC?)
OCZ Gamer Xtreme 600W PSU
Cooler Master Cosmos on water
Reply With Quote
  #26 (permalink)  
Old April 8, 2008, 09:06 PM
BrainEater's Avatar
Hall Of Fame
 
Join Date: Mar 2007
Location: Calgary
Posts: 2,531
Default

If you hand lap someting that flat , you dont really need TIM .

Keep in mind TIM is only gap filler.

-----

I'm werking on something like this.I'm building pure silver , lapped heatsinks to use no TIM in submersion.They'll be lapped to 4000 grit if I can do it.




lapped to 200 grit ;



Next phase of machining is underway .

__________________
Intel 3930k /rIVe/32 Gb vengeance LP/Nvidia TITAN/760/760/Intel 520's/WD raptors/etc...
Reply With Quote
  #27 (permalink)  
Old April 8, 2008, 09:22 PM
Cptn Vortex's Avatar
Hall Of Fame
F@H
 
Join Date: May 2007
Location: Vancouver
Posts: 3,755
Default

Well that's an interesting way to blow away some money?
__________________
The Vortex H20

Coolermaster ATCS 840 w Window panel
MSI Z77A-GD65
Intel i7 3770K @ 4.6GHZ 1.28v
Galaxy GTX 680 @ 1241MHZ
8GB Mushkin Blackline 1600MHZ 9-9-9-24 1.5v
Asus Xonar Essence STX
OCZ Z-Series GOLD 850W
2 x 128GB Corsair Force GT SATA3 SSD RAID0 :)
Acheiva Shimian Q270 Lite 2560x1440

Benq W500 Pojector.

Watercooling:
EK Supreme HF, EK FC GTX 680 Block, MCR320+Gelid Silent 12 Push/Pull, DD Pump, EK Multioption 100ml Res, EK Coolstream XT 220 RAD Gelid Wings Push/Pull.
Reply With Quote
  #28 (permalink)  
Old April 8, 2008, 09:37 PM
BrainEater's Avatar
Hall Of Fame
 
Join Date: Mar 2007
Location: Calgary
Posts: 2,531
Default

Do0d that chunk of silver has been a paperweight on my desk for 3 years.I asked for it for xmas once to make some waterblocks from , and I never did it.

Secondly , silver is the best conductor of heat save diamond and or superconductors.If you want pricing on the last 2 let me know......I can build you a ten thousand dollar waterblock that will have no equal.

----

I'm paying for this outta my own pocket , and I dig holes with a shovel for a living,so I'm allowed to blow my money however.



There's 150$ of 14 ga .9999 silver wire thats hand machined being soldered into that slug.Total weight will exceed 12 oz...... Time spend will be 30+ hours (mostly lapping.)....

Like I say , it's kinda being designed for a special project so....

__________________
Intel 3930k /rIVe/32 Gb vengeance LP/Nvidia TITAN/760/760/Intel 520's/WD raptors/etc...
Reply With Quote
  #29 (permalink)  
Old April 8, 2008, 09:44 PM
BrainEater's Avatar
Hall Of Fame
 
Join Date: Mar 2007
Location: Calgary
Posts: 2,531
Default

sorry for the threadjack.

Clamping force is also very important !

Most industrial power components actually come with specified torque ratings.This applies to cpu assemblies as well.......

__________________
Intel 3930k /rIVe/32 Gb vengeance LP/Nvidia TITAN/760/760/Intel 520's/WD raptors/etc...
Reply With Quote
  #30 (permalink)  
Old April 22, 2008, 06:35 AM
Top Prospect
 
Join Date: Jan 2008
Location: near Montreal, Quebec
Posts: 113
Default

Look... I finally grew some balls
No wonder I was getting bad temps...
Attached Images
           
__________________
Lapped Intel Qx6850 @ 3.7 Ghz @ 1.4 volts
Coolit freezone elite
Asus Rampage Formula
8 Gig Gskill pc2 8000 4x2gig
HIS HD4870X2
BenQ V2400W monitor
Pc power and cooling quad 750
Cooler Master Stacker 830

Reply With Quote
Reply


Thread Tools
Display Modes