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Copper Mod Results - Page 3

post #41 of 55
4/16/05 at 4:46am
how do you find that out? I bought my MR9800 two mounth's ago.
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post #42 of 55
4/21/05 at 11:44pm
Ehh gold? Nah, gold isn't that good conductor, its used in audio because its very malluable (sp?) and so makes a good connection, not because it's highly conductive.

Silver is the best conductor of both Electricity and Heat.

I'm bored the now, so looked it up.

Thermal conductivity, measured in Watts per meter per kelvin (W M^-1 K^-1)
Aluminium: 237
Copper: 401
Gold: 318
Silver: 428
Magnesium: 418

So yeah Silver is the best, Magnesium is better than copper, but a bit risky, maybe not though.

Now assuming you use (forgive me here for the sizes) 6 x 1cm^2 x .05 cm^2 + 1x 9cm^2 x 0.15cm^2. Total volume = 1.65x10^-6 m^3

Total mass of Copper: 0.0147345 Kg
Total mass of Silver: 0.017325 Kg (117.6% of copper mass)

Now ive used a few sites here and done some calculations so iff these figures are wrong, i dont care.

Cost per Kg of Copper = $3.4 USD
Cost per Kg of Silver = $237 USD

Cost of Copper for heat mod: $0.05 USD
Cost of Silver for heat mod: $4.11 USD

Ok so it looks like it shouldnt cost you more for Silver, but these are cost prices of the meatals, I recon you ended up paying about $5 for the copper? If you can expect the same mark up (which is probably unreasonable) but it would cost you ~$400? (its not really gonna be that but think about, you might still end up spending +$50? and where you gonna get sheet silver from?

So for the benifit for an extra few points in the thermal conductivity its not going to be worth it.

This is all a bit stupid and I may seem like a **** for doing it, but i'm a bored Engineering student trying not to study, so its been fun But my point in, why come on here shouting "why use copper silver is better" its pointless, the guy has went to the bother to show us what he got using silver, if you want to do it better, go for it.

Well in Tom.

JAmes

ps. i can take pics of these thermal figures if you reeaaaalllly want, or if anyone else wants some other figures for fun too
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post #43 of 55
4/22/05 at 1:47pm
9000 in 3dmark03 is probably the worlds highest mr9800 oclock score!!!
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post #44 of 55
4/22/05 at 3:35pm
Quote:
Originally Posted by jammy86
Ehh gold? Nah, gold isn't that good conductor, its used in audio because its very malluable (sp?) and so makes a good connection, not because it's highly conductive.

Silver is the best conductor of both Electricity and Heat.

I'm bored the now, so looked it up.

Thermal conductivity, measured in Watts per meter per kelvin (W M^-1 K^-1)
Aluminium: 237
Copper: 401
Gold: 318
Silver: 428
Magnesium: 418

So yeah Silver is the best, Magnesium is better than copper, but a bit risky, maybe not though.

Now assuming you use (forgive me here for the sizes) 6 x 1cm^2 x .05 cm^2 + 1x 9cm^2 x 0.15cm^2. Total volume = 1.65x10^-6 m^3

Total mass of Copper: 0.0147345 Kg
Total mass of Silver: 0.017325 Kg (117.6% of copper mass)

Now ive used a few sites here and done some calculations so iff these figures are wrong, i dont care.

Cost per Kg of Copper = $3.4 USD
Cost per Kg of Silver = $237 USD

Cost of Copper for heat mod: $0.05 USD
Cost of Silver for heat mod: $4.11 USD

Ok so it looks like it shouldnt cost you more for Silver, but these are cost prices of the meatals, I recon you ended up paying about $5 for the copper? If you can expect the same mark up (which is probably unreasonable) but it would cost you ~$400? (its not really gonna be that but think about, you might still end up spending +$50? and where you gonna get sheet silver from?

So for the benifit for an extra few points in the thermal conductivity its not going to be worth it.

This is all a bit stupid and I may seem like a **** for doing it, but i'm a bored Engineering student trying not to study, so its been fun But my point in, why come on here shouting "why use copper silver is better" its pointless, the guy has went to the bother to show us what he got using silver, if you want to do it better, go for it.

Well in Tom.

JAmes

ps. i can take pics of these thermal figures if you reeaaaalllly want, or if anyone else wants some other figures for fun too
- your education is?
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post #45 of 55
4/22/05 at 5:33pm
Engineering student at Warwick University, UK.

JAmes
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post #46 of 55
4/23/05 at 12:31am
@superfly,

there was a post here about number of months back that had memory serial numbers and what type of memory they corresponded to. i believe the mr9800 memory is from samsung, so the document maybe on their site also.

use search and you should be able to find the thread.
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post #47 of 55
11/1/05 at 5:16pm
i've give up its stupid but i can find the copper plates like this
http://www.students.niu.edu/~z107419/9100/heat.html
i tried ebay and google
anyone have idea how to get them ?
I live in london if anybody know some good shop selling this kind of things i'll thankfull ....

tnx !
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post #48 of 55
11/1/05 at 5:57pm
Do a search in ebay for COPPER SHEET
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post #49 of 55
11/1/05 at 9:42pm
Go get a small piece of copper flashing
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post #50 of 55
11/2/05 at 2:59am
http://onlinemetals.com/merchant.cfm?id=93&step=2
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post #51 of 55
12/3/05 at 12:16pm
i just finish my copper mod.
time about 2h
cost about 22 pounds
i've put as5 on processor also and idle temps are:
cpu: 46 C 3.2 ghz
Gpu: 53 C (oc 412, 400)

ati tool benchmark 50-52% load of cpu and temps
cpu: 49 C
gpu: 58 C

and now i know also that my ati is 44 week mo more fps foor me
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post #52 of 55
12/3/05 at 4:03pm
Matist, what shop did you get the copper from? I live in London too. I just scored a cheap extreme edition cpu (only £225!), so since I am at it I am gonna do the copper mod too.
Also, did you use glue to attach the copper to the heatsink, or did you use AS5? And do you remember the temperature of the gpu before the copper mod?
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post #53 of 55
12/4/05 at 12:27pm
i've got them from my country ehh could not get them in london my was a little bit too thin so i put one on top of another and put some as5 between and it was fine
i did not use any glue !
i've clean the copper plates with nail-file (really soft one) until they shine after that i clean them with "thermal surface purifier" from ArcticClean and attach them to the heatsink with as5 it's sticky enough...

temp before was on gpu idle 60-61 when playing nfs:mw witch oc to 412,400 was about 70 sometimes even more !!!! now max temp so far 63 and funny thing fans never even go on maximum

i've put some as5 on cpu also because dell put some white shit and on mine they put so much so it goes on mainboard cpu gets coller maybe not much diff on iddle but its make diff when you play or som ... like i say never so far hear my fans go on max ! !

bought my as5 with Arctic Silver ArctiClean Thermal Material Remover & Surface Purifier from http://www.chillblast.com fast delivery and its evan cheaper then on ebay !!
copper plates if you will have a problem with getting them let me know i can send you some ....
any ideas what i can do with my 44 week mr9800 ? i really need some kick of fps ...
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post #54 of 55
12/7/05 at 1:51pm
What were the dimensions of the copper sheets?
Did you use the ones on that link?
http://www.students.niu.edu/~z107419/9100/heat.html
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post #55 of 55
12/8/05 at 3:17pm
Does it overclock more now, or does it just stay cooler? Have you ran ati tool to check your highest safe overclock?
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