|
|
Post by B B on Jun 1, 2008 22:14:34 GMT
Chris,
I am sorry if I did not completely read the macbidouille article,I remembered they talked about the leake at the time and made a search... Indeed it is a new pump more performing, the reason are in the translation :
The Cooligy company has two speciallities :
-Electrocinetics pumps which move the liquid without rotation parts. These pump make no noise and last for a very long time.
-Micro-channels radiators. They are made with only 10 microns channels instead of the usual 100. The surface contact between liquid and rad is therefore highly raised, which improves the heat exchanges and then the cooling. If Apple well used all these technologies, the Quad LCS cooling is the best for a computer. We only regret that because of the limited space the pumps have to be installed in the way of the air flew
I went on the Cooligy site, the tech descriptions are very interessting. I am googling now to find one of these pumps.
That's true Aqua's articles really help. Good luck for your Hack next year.
Maybe I will wait to complete my MDD, I need to invest more to complete my LCS for my Hack. I will PM you about the Dual 1.25 GHz procs. Do you have a 167 MHz FSB board or 133 MHz ?
|
|
|
|
Post by B B on Jun 2, 2008 0:05:22 GMT
|
|
|
|
Post by Meersbrook on Jun 2, 2008 0:17:50 GMT
Hi bb,
That article is stunning! I'd like to get my hands on several of those units. They seem so simple, once the complex physics and maths are out of the way ;D ;D
My bus is 133 which is confusing as I would have thought it was cheaper for Apple to have made all the boards in that range the same, the other 2 released at the time were 166 as you probably know.
Chris
|
|
|
|
Post by B B on Jun 2, 2008 1:20:06 GMT
If your board is 133 MHZ FSB and you want to upgrade with an original Dual proc which runs @ 167 MHz FSB(166,xx MHz), you will need to upgrade the Mobo speed and use DDR-SDRAM PC2700 @333 MHz instead of DDR-SDRAM PC2100 @266 MHz Ram speed as shown in ENGLISH  on macbidouille.com : www.macbidouille.com/article.php?id=89&page=3 |
|
|
|
Post by Meersbrook on Jun 4, 2008 0:00:29 GMT
Hi bb,
The article makes it look reasonably simple but I don't know if my soldering skills are up to it. I'm reasonably confident re. desoldering R2 & R4 on 9800 Pro's as I simply apply a hot iron for about 3 seconds then flick the resister off. I've done that twice now on our Hercules Prophet cards with no problems (yet ;D ) I know it sound a bit crude but it works for me. I'm well aware that I could use a quick course in the art of contact soldering if you know how I can get one. Failing that do you know anyone who would do it for me?
I've got a few sticks of PC3200 400htz I could use on the completed board which would solve the memory problem. Leaving the acquisition of the dual 1.25 processors & liquid cooling kit to do.
Chris. (PS how do you send & receive PM's on this forum?)
|
|
|
|
Post by B B on Jun 4, 2008 9:01:44 GMT
It is exactly the same that you did with the graphic card, just solder resistor 22 , warm for two seconds each ends of the contact from the resistor and from the mobo, apply tiny of solder wire on the four edges and sold for two seconds . I can send you some resistors, still have three non working Mobo bought with empty cases.
Yes indeed, the PC3200 @400 MHz are backward compatible with PC2700 @333 MHz slot memory.
To send a MP,
you double klick on the member name and when you get the member profile you can send a personnal message, just beside the name.
|
|
racerblur
Junior Member
Macs make nice pets!
Posts: 91
|
Post by racerblur on Jun 5, 2008 19:19:05 GMT
Ok, it happen at work! One of our PowerMac G5 Dual 2.7Ghz machines started leaking rusty, milky colored liquid out the bottom rear of the machine... Yuck! And then it died... I didn't know it was overheating and I didn't it was leaking until I tried to get it reboot and I grabbed the bottom handle and it was wet.... It's out of warranty, but Apple is going to repair it... I wish they offered us a Mac Pro, but they have all the parts at the Apple Store and they said since it is out of warranty... You are lucky we are fixing it... I guess so... wished the didn't have any spares... I was hopping for a new Dual Quad Mac Pro! Oh well...
|
|
|
|
Post by B B on Jun 6, 2008 9:02:57 GMT
|
|
|
|
Post by B B on Jun 6, 2008 9:05:12 GMT
Ok, it happen at work! One of our PowerMac G5 Dual 2.7Ghz machines started leaking rusty, milky colored liquid out the bottom rear of the machine... Yuck! And then it died... I didn't know it was overheating and I didn't it was leaking until I tried to get it reboot and I grabbed the bottom handle and it was wet.... It's out of warranty, but Apple is going to repair it... I wish they offered us a Mac Pro, but they have all the parts at the Apple Store and they said since it is out of warranty... You are lucky we are fixing it... I guess so... wished the didn't have any spares... I was hopping for a new Dual Quad Mac Pro! Oh well... Do you thing I can buy back just the radiator ? |
|
|
|
Post by B B on Jun 7, 2008 0:49:53 GMT
|
|
|
|
Post by Meersbrook on Jun 8, 2008 0:49:32 GMT
I really must stop work and start spending my time doing what I really like doing: trying to "fettle" Macs ;D ;D Two days away and I nearly miss the best thing to come up on eBay for weeks  Thanks for the tip off bb, but I don't think it's coming my way. One good thing about coming in late is the opportunity to study the bidding profile yes? and looking at this one, somebodys even more obsessed with those particular spare parts then I am ;D ;D ;D Back on the older subject, are heat levels of critical importance in resistor soldering? My iron is an old Maplins one; it has a setting dial but it's not graduated in degrees C, simply "cold, medium, hot & very hot". Perhaps the question should have been " Do I need to buy a proper soldering iron"? ;D Chris. PS Brilliant news Raceblur! Any G5 is better then a leaking G5 ;D ;D |
|
|
|
Post by B B on Jun 8, 2008 1:12:53 GMT
I got this from macbidouille. I have to find the translation for the whole article on hardmac; it is complete and very interesting. En micro-électronique 20 à 25W est parfait, on préférera 30-40W pour les gros filsWhich means for small wires, you use 20 to 25W and big wires 30-40 W. The soldering for the resistors (CPU or Mobo) is to be considered as micro-electro. 30W max recommended. edit : I found this on hardmac.com : Solder 'round the clock - Lionel - 05:59:01 Antoine Bercovici, whose piece about FireWire connectors has been immensely successfull, deciced to try and teach us how to do nice and clean soldering, mandatory first step to most hardware hacks... There even is a nice video that convinced Lionel he had to go back to soldering school ASAP ;-) The French version is there... and for the non French speaking, there's always the video... www.macbidouille.com/article.php?id=149BB notes : Lionel is the creator of the macbidouille site. One bidouille in French means to fix something on a simple way or a tricky way. Lionel was fed up not to be able to use an optical drive with his Mac (rom for PC). He fixed it with a bidouille and post it and because of the reactions he published others bidouille... The site macbidouille was born. |
|
|
|
Post by Meersbrook on Jun 10, 2008 0:25:27 GMT
The video was very useful. I've seen the length of braid for sale in Maplins and never before really appreciated how useful it is in mopping up excess solder. Removing the resister by putting a blob of solder on each end then heating that up before flicking the resister off again looks like a good idea in reducing iron/heat time on the circuit board. Like Lionel I too could benefit from returning to school ;D Whilst on the site I also saw the 3G iPhone item. My 3 contract runs out in September so naturally I've now already made up my mind whats going to replace my old Nokia  |
|
|
|
Post by B B on Jun 10, 2008 0:38:07 GMT
The video is indeed very informative. At the time I discovered this article I printed it out and I read it again from time to time. I have to find back now.
About the new iPhone G3, my wife has already an idea for my birthday present for the 6th of July. ;D
|
|
