Message boards :
Number crunching :
17" GPU fan died yesterday
Message board moderation
Author | Message |
---|---|
petri33 Send message Joined: 6 Jun 02 Posts: 1668 Credit: 623,086,772 RAC: 156 |
Got home today and wondered why it was so cool and quiet here. My machine had stopped working because of CPU overheat protection. But not soon enough. There will be a lot of calculation errors on CPU tasks. The GPU fans have died a long time ago and are cooled with a 17" tabletop fan blowing air directly to them. The old broken tabletop fan is now replaced with a new one. The machine is reporting old tasks (some failed) and loading new ones. To overcome Heisenbergs: "You can't always get what you want / but if you try sometimes you just might find / you get what you need." -- Rolling Stones |
Zalster Send message Joined: 27 May 99 Posts: 5517 Credit: 528,817,460 RAC: 242 |
Sorry to hear that Petri... I have 200 mm pushing air directly over my GPUs as well. Glad there wasn't any malfunctions with the computer components. Zalster |
rob smith Send message Joined: 7 Mar 03 Posts: 22204 Credit: 416,307,556 RAC: 380 |
My solution is a bank of four 150mm fans in the side of the case..... (room may be noisy, but I'm never i there to find out...) Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
petri33 Send message Joined: 6 Jun 02 Posts: 1668 Credit: 623,086,772 RAC: 156 |
My solution is a bank of four 150mm fans in the side of the case..... I have got a customised side panel with four 21 cm fans but they are not as powerful as the tabletop fan. And yes, no harm to other components. To overcome Heisenbergs: "You can't always get what you want / but if you try sometimes you just might find / you get what you need." -- Rolling Stones |
Rasputin42 Send message Joined: 25 Jul 08 Posts: 412 Credit: 5,834,661 RAC: 0 |
It is better to have a desktop fan blowing into the open side at a distance of 0.5m or so. Having fans mounted to the (enclosed) case only produces hot air feedback, as the air going out is sucked around the case and blown in again. An open case is always better than a closed one(from my experience). If you have a fairly directional desktop fan(and enough room), you can move the desktop fan even further away(at a 45 degree angel to the case, if you can). This is to get the hot air out of the case.(leave as much room around the open side of the case, as you can, to allow the warm air to escape) You still need fans mounted directly to the heatsinks to get the heat out of the devices themselves(this is most essential). Watch the temps, and you will see, that it works. (If you have the space around the computer, that is) |
petri33 Send message Joined: 6 Jun 02 Posts: 1668 Credit: 623,086,772 RAC: 156 |
Here is the sidepanel (not in use) and the old fan. http://setiathome.berkeley.edu/forum_thread.php?id=73909&postid=1635858 To overcome Heisenbergs: "You can't always get what you want / but if you try sometimes you just might find / you get what you need." -- Rolling Stones |
Rasputin42 Send message Joined: 25 Jul 08 Posts: 412 Credit: 5,834,661 RAC: 0 |
Have you tried to take the fans out of the card or is this too difficult for you. Do you have a better picture of your card, mabe a link to a website? |
woohoo Send message Joined: 30 Oct 13 Posts: 972 Credit: 165,671,404 RAC: 5 |
looks like he has asus GTX780-DC2OC-3GD5 |
petri33 Send message Joined: 6 Jun 02 Posts: 1668 Credit: 623,086,772 RAC: 156 |
looks like he has asus GTX780-DC2OC-3GD5 That is the card. I have removed the metal shield and the malfunctioning fans. It is easier to replace a tabletop fan once every half years. That's what they seem to last even when lubricated with Mobil 1 rally formula 5W-50. Maybe I should re-apply the oil weekly every tuesday :) To overcome Heisenbergs: "You can't always get what you want / but if you try sometimes you just might find / you get what you need." -- Rolling Stones |
Rasputin42 Send message Joined: 25 Jul 08 Posts: 412 Credit: 5,834,661 RAC: 0 |
The problem with the fans are not only lack of lubrication, but also dirt buildup, which kills most GPU/CPU fans. You should wash the fans. I have done this a number of times and i works great. Make some warm/hot water with dish-washing detergent(if you can keep your hands in, it is not too hot). Put them in and spin them by hand.Turn them around and make sure, all the air gets out. Leave them in the water for 20-40 minutes and keep spinning them again(in the water). Rinse them and soak them in clean warm water.Spin them in the water.(by hand) Repeat that with new water. Then, get them out to dry.Shake them a bit and use a hair drier ON COLD SETTING to blow them dry.(Or any other source of cold air) It is important, that they spin, otherwise you cannot get the water out. Make sure, they are absolutely dry, before you put them back. After a few days of use, you can put some oil on. (Do not ever do that with mains powered fans! This is for low Voltage brush less DC fans only) |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
I have not bought a 120mm fan for years now. The ones I bought back then have a little rubber button over the bearing. Sleeve bearings. And if they start to squawk, I just peel the label off, pry the button out and give them a few drops of oil commonly used by furnace technicians...google 'zoom spout oiler'. Let it soak into the bronze bearings for a bit, spin the fan a little by hand, and pop the rubber button back in. Wipe off the excess oil that squishes out, and they are good to go for another 6 to 12 months or sometimes more running 24/7. They were Scythe Ultrakaze 120 x 38mm, 3000rpm 133cfm fans. Doubt you can get them anymore. They are a little noisy, but I was after performance, not silence...LOL. I have not googled the part number yet....DFS123812H-3000. If you can still find them, they will run, like, foreeeeeeeeeeeeeever given a little bit of oil now and then... "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Admiral Gloval Send message Joined: 31 Mar 13 Posts: 20277 Credit: 5,308,449 RAC: 0 |
No problems. Checked newegg and found the fans. You are right about being a little noisy. But for $13.00, I can stand a bit noisy. |
woohoo Send message Joined: 30 Oct 13 Posts: 972 Credit: 165,671,404 RAC: 5 |
if you double the rotational speed then you will get double the airflow and double the noise level |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13736 Credit: 208,696,464 RAC: 304 |
I like these ones. Not as much air flow, but very quiet & run forever. Maglev bearing fan Or you could use a 3,000RPM, 106CFM fan with ball bearings. Lubrication never required. Grant Darwin NT |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13736 Credit: 208,696,464 RAC: 304 |
The other option for a large fan with lots of airflow would be a radiator fan for a car. They run on 13V & shift a huge amount of air, along with a ridiculous amount of noise. Put in a resistor to drop the supply voltage to 9V or so & you would still have a huge amount of airflow, for not too much noise. Grant Darwin NT |
betreger Send message Joined: 29 Jun 99 Posts: 11361 Credit: 29,581,041 RAC: 66 |
I like these ones. Nice fan |
©2024 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.