Page 1 of 2 12 LastLast
Results 1 to 15 of 28
  1. #1
    Joined
    Mar 2003
    Posts
    65

    making my own block. couple questions

    okay few questions i cant find a chunk of copper anywhere so im using aluminum. is this okay?

    i got 2 1" x 3" x 3" chunks and im going to have a plexiglass top making it for a 6800 and the barbs will be coming out of the top 1" thick part.
    -Andy
    MSI K8N Neo2 Platinum.
    Athlon64 939 3200 90nm w/XP90
    2x256 Kingston HyperX Winbond BH5
    Fortron Blue Storm 500 Watt Power Supply.
    Thermaltake Armor huge mofo case!
    HDD 74GB|WD 10,000RPM
    ACER 19" LCD 500-1 16ms
    DVD±RW SAMSUNG TS-H552B
    ROSEWILL 128MB NVIDIA 6800

  2. #2
    Joined
    Jan 2005
    Location
    Fort Bragg, NC.
    Age
    35
    Posts
    748

    Re: making my own block. couple questions

    I wouldnt make a block out of alum!! Especially for a 6800!!

    CPU: Phenom 925 X4
    MOBO: BIOSTAR A870U3
    MEM: G.Skill Ripjaws 4GBx2 1333
    VGA: GTX 260
    PSU: Cougar CMX 700
    HDD: WD Black 500GB

  3. #3
    Joined
    Mar 2003
    Posts
    65

    Re: making my own block. couple questions

    why not? aluminum heats up faster then copper, if your on water you can get that heat outa there quicker, i actaully ordered a maz4 GPU but i still think this huge chunk of aluminum i got will be cooler when i finish.
    -Andy
    MSI K8N Neo2 Platinum.
    Athlon64 939 3200 90nm w/XP90
    2x256 Kingston HyperX Winbond BH5
    Fortron Blue Storm 500 Watt Power Supply.
    Thermaltake Armor huge mofo case!
    HDD 74GB|WD 10,000RPM
    ACER 19" LCD 500-1 16ms
    DVD±RW SAMSUNG TS-H552B
    ROSEWILL 128MB NVIDIA 6800

  4. #4
    Joined
    Jun 2003
    Location
    Republic of Texas
    Posts
    196

    Re: making my own block. couple questions

    Copper is a better at moving heat. Period. You also don't necessarily need a "huge chunk" of anything to the job efficiently.

    Visit procooling .com for very good advice and insite into building your own block.

    Unless you have a mill and a proven idea foir cooling better than what's already available, you'd be better off just buying a block that's already made.

    But hey, it's your money.

  5. #5
    Joined
    Mar 2003
    Posts
    65

    Re: making my own block. couple questions

    i just think your all scared when you see my half asss drilled and tapped/died block getting good temps i think your mind will change. i have read a lot of threads ive read sever copper vs aluminum and most blocks use copper right on the source of heat then switch to aluminum.

    if it turns out shitty what am i out? a couple hours and a 3x3 chunk of aluminum? im a diy type of guy and i think i can do this
    -Andy
    MSI K8N Neo2 Platinum.
    Athlon64 939 3200 90nm w/XP90
    2x256 Kingston HyperX Winbond BH5
    Fortron Blue Storm 500 Watt Power Supply.
    Thermaltake Armor huge mofo case!
    HDD 74GB|WD 10,000RPM
    ACER 19" LCD 500-1 16ms
    DVD±RW SAMSUNG TS-H552B
    ROSEWILL 128MB NVIDIA 6800

  6. #6
    Joined
    Jan 2005
    Location
    Fort Bragg, NC.
    Age
    35
    Posts
    748

    Re: making my own block. couple questions

    Well do what you want but alum sucks for heat transfer!

    CPU: Phenom 925 X4
    MOBO: BIOSTAR A870U3
    MEM: G.Skill Ripjaws 4GBx2 1333
    VGA: GTX 260
    PSU: Cougar CMX 700
    HDD: WD Black 500GB

  7. #7
    Joined
    Mar 2003
    Posts
    65

    Re: making my own block. couple questions

    aluminum doesnt suck, agreed that copper is better though.
    MSI K8N Neo2 Platinum.
    Athlon64 939 3200 90nm w/XP90
    2x256 Kingston HyperX Winbond BH5
    Fortron Blue Storm 500 Watt Power Supply.
    Thermaltake Armor huge mofo case!
    HDD 74GB|WD 10,000RPM
    ACER 19" LCD 500-1 16ms
    DVD±RW SAMSUNG TS-H552B
    ROSEWILL 128MB NVIDIA 6800

  8. #8
    Joined
    Mar 2004
    Age
    36
    Posts
    1,781

    Re: making my own block. couple questions

    Copper is a better conductor of both heat and electricity. That's all you need to know. Aluminum isn't bad, but the reason people don't use it is the corrosive properties. You can expect that a system with both copper and aluminum will corrode without some form of corrosion inhibitor.
    That's a sweet rig in your sig, but does it fold?



    DRM 'manages access' in the same way that jail 'manages freedom.'

  9. #9
    Joined
    Mar 2003
    Posts
    65

    Re: making my own block. couple questions

    muahahaha!!! copper is in no way a better conducter of electricity. aluminum is a lot better....

    i just learned that in college, (electrical technology degree)

    but copper does take longer to heatup. and for that it is a better cooler
    MSI K8N Neo2 Platinum.
    Athlon64 939 3200 90nm w/XP90
    2x256 Kingston HyperX Winbond BH5
    Fortron Blue Storm 500 Watt Power Supply.
    Thermaltake Armor huge mofo case!
    HDD 74GB|WD 10,000RPM
    ACER 19" LCD 500-1 16ms
    DVD±RW SAMSUNG TS-H552B
    ROSEWILL 128MB NVIDIA 6800

  10. #10
    Joined
    Mar 2004
    Age
    36
    Posts
    1,781

    Re: making my own block. couple questions

    Sorry they taught you that, but it's not true. Grab a periodic table, and check it yourself.
    http://hyperphysics.phy-astr.gsu.edu...es/elecon.html
    Electrical Conductivity, from best to worst:
    (in 10^7/(ohm m) )
    Ag: 6.21
    Cu: 5.88
    Au: 4.55
    Al: 3.65

    Copper is clearly a better conductor than aluminum. 61% better, in fact.

    For thermal conductivity, http://hyperphysics.phy-astr.gsu.edu...les/thrcn.html
    (in W/(m K) )
    Ag: 406.0
    Cu: 385.0
    Al: 205.0

    Again, Copper beats out Aluminum, This time, Copper is 87.8% better.

    The only reasons that people use Aluminum instead of Copper are that a) it's cheaper, and b) it's easier to work.
    That's a sweet rig in your sig, but does it fold?



    DRM 'manages access' in the same way that jail 'manages freedom.'

  11. #11
    Joined
    Jun 2004
    Location
    Hnvr, Germany
    Age
    33
    Posts
    299

    Re: making my own block. couple questions

    that's why copper is used in those wires that deliver electricity to your house
    Last edited by Hubris; 03-26-2005 at 03:42 AM. Reason: not playing well together...

  12. #12
    Joined
    Mar 2003
    Posts
    65

    Re: making my own block. couple questions

    hmm im gonna do some reading... maybe im wrong but im way under the impression that aluminum is a better conductor.

    on a per pound basis aluminum is over twice as good a conductor as copper.

    copied and pasted.

    and wtf is with the name calling lookout guys we got an internet bully...... lol


    -Andy
    Last edited by AndyAndersen; 03-24-2005 at 06:57 PM.
    MSI K8N Neo2 Platinum.
    Athlon64 939 3200 90nm w/XP90
    2x256 Kingston HyperX Winbond BH5
    Fortron Blue Storm 500 Watt Power Supply.
    Thermaltake Armor huge mofo case!
    HDD 74GB|WD 10,000RPM
    ACER 19" LCD 500-1 16ms
    DVD±RW SAMSUNG TS-H552B
    ROSEWILL 128MB NVIDIA 6800

  13. #13
    Joined
    Mar 2004
    Age
    36
    Posts
    1,781

    Re: making my own block. couple questions

    Ah. Per pound. Well, now, that makes a difference, now doesn't it? See the thing is that conductivity is not measured per pound. That is purely an artificial measurement.

    Density (kg/m^3):
    Al: 2700
    Cu: 8300-9000

    it's not too surprising that Al is a better conductor over a given length for a given mass of material. It's got more area to do it in!

    Ever wondered why long range transmission lines are aluminum while house wiring is copper?

    It's actually for two reasons. 1) aluminum house wiring starts fires (this has to do with Al2O3 forming on junctions where wires are connected together, and heating up enough to melt the Al, which then causes arcs, and bam you have an electrical fire) 2) on a long range transmission line, the actual composition of the wire is a steel cable core, with Al wires wrapped around it. That way, the Al, which is too weak to hold itself up, is supported by the steel cable, and the current is carried by the Al. Cu would be too heavy for this.

    I suspect that is what your prof was refering to.

    Anyway that comparison is useless for making waterblocks. You don't care about weight, thermal conductivity is all that matters, and 87% is a lot of %
    That's a sweet rig in your sig, but does it fold?



    DRM 'manages access' in the same way that jail 'manages freedom.'

  14. #14
    Joined
    Mar 2003
    Posts
    65

    Re: making my own block. couple questions

    you didnt read my first post did you? " i cant find a chunk of copper anywhere so im using aluminum"

    im not trying to create a superman block that beats everything out i am just a diy guy and i got all the fittings and hose a dewalt drill and a tap and die set.. hehehe


    i never once said that aluminum would be better for my waterblock. i simply stated that it wouldnt suck and im using a huge block of aluminum 1"x3"x3" cause my dads got a few scrap chunks, we will see how it works if it sucks oh well i had fun trying and i got a maze4 ordered anyway

    man im a frequent poster on ocforums, hardforums, pimprig.com and just rescently these forums and so far i havnt been too impressed with people here, seems like everyones wantig to start a flame war....

    my main question here wasnt weather copper or aluminum is better that question is odvious i was wondering if aluminum in my circuit would mess anything up. i remember something in college along the lines of two different types of metal making contact ect can be bad. especially aluminum. now water running through them im no sure about contact there ect ect.. as always your imput is appricated. but leave your flames for other people please.
    -Andy
    Last edited by AndyAndersen; 03-24-2005 at 07:01 PM.
    MSI K8N Neo2 Platinum.
    Athlon64 939 3200 90nm w/XP90
    2x256 Kingston HyperX Winbond BH5
    Fortron Blue Storm 500 Watt Power Supply.
    Thermaltake Armor huge mofo case!
    HDD 74GB|WD 10,000RPM
    ACER 19" LCD 500-1 16ms
    DVD±RW SAMSUNG TS-H552B
    ROSEWILL 128MB NVIDIA 6800

  15. #15
    Joined
    Mar 2004
    Age
    36
    Posts
    1,781

    Re: making my own block. couple questions

    I'm not trying to start a flame war. You asked a question, I answered it, you told me I was wrong, I defended myself.

    I did read your first post, and I answered it in my first post.

    Aluminum isn't bad, but the reason people don't use it is the corrosive properties. You can expect that a system with both copper and aluminum will corrode without some form of corrosion inhibitor.
    That's a sweet rig in your sig, but does it fold?



    DRM 'manages access' in the same way that jail 'manages freedom.'

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •