| Forum Home | ||||
| Press F1 | ||||
| Thread ID: 47692 | 2004-08-02 22:00:00 | Replacement PSU fan - what precautions? | Greg S (201) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 257646 | 2004-08-02 22:00:00 | Hi. My PSU extractor fan is going belly-up despite a recent lube job on it's bearing. What do I need to be aware of when I buy a replacement - or is there a standard that I can't go wrong with (I'm very duh when it comes to electrics). The PSU is some generic thing so I kinda doubt that supplying the dealer with a make and model will be sufficient. Thx |
Greg S (201) | ||
| 257647 | 2004-08-02 22:20:00 | If you don't have much knowledge of electrics, consider having someone else fix it. The fan probably won't be plug in and the inside of a psu even unplugged can still bite you. | PaulD (232) | ||
| 257648 | 2004-08-02 22:42:00 | Thanks for the warning. It is a plug-in type - as mentioned I pulled it out previously to put a touch of oil in it's bearing. How can the PSU shock you if it's unplugged? I mean I take your caution seriously, but I'm a tad confused. |
Greg S (201) | ||
| 257649 | 2004-08-02 22:49:00 | I've just replaced PSU fans with an equivalent sized fan before, usually 80x25mm. Get the same voltage, 12V usually anywhere from 1800-3000 rpm (around 2200-2500 should be fine for cfm vs dBA), in general, stay away from the higher speed Sunon and Delta fans unless you like to be able to hear it operating (or run them at 1/2 or 3/4 voltage = less rpm = less dBA = less CFM). If your very lucky it will have connectors, otherwise be prepared to get the soldering iron out to de-solder the old and connect the new fan. First, disconnect everything, remove the PSU and leave it a while before delving in there. If in doubt don't touch PSU's hold a charge, maybe for several hours. Cheers Murray P |
Murray P (44) | ||
| 257650 | 2004-08-02 22:52:00 | If its a standerd fan(25mm) then just bung another in,Youve already had it apart from the sounds of it. You will only run into issues if its a hard to find fan,if anyone knows where to find a 10mm one,let me know. |
metla (154) | ||
| 257651 | 2004-08-02 22:59:00 | Glue four 40x10mm fans together. Should sound cool at least ;) Cheers Murray P |
Murray P (44) | ||
| 257652 | 2004-08-02 23:13:00 | > I've just replaced PSU fans with an equivalent sized > fan before, usually 80x25mm. Get the same voltage, > 12V usually anywhere from 1800-3000 rpm (around > 2200-2500 should be fine for cfm vs dBA) Ta Murray. I should've made myself clearer in the original post - the fixing and fitting isn't a problem - it's compatibility of the new fan vs PSU that I was worried about, eg voltages. re CFM vs dBA - I'm not too fussed about either - the system runs nicely cool, and the whoosh of the air from this fan (which is the only audible one) is kinda comforting, like a blankey :D But on start-up it sounds like a chainsaw gone haywire, so I know it's gonna meet the Great Fan in the Sky sometime soon. Thanx all. |
Greg S (201) | ||
| 257653 | 2004-08-02 23:14:00 | > How can the PSU shock you if it's unplugged? I mean > I take your caution seriously, but I'm a tad > confused. to quote from Mark Minasi (haven't got book in front of me, so may not be dead accurate)-"these things can kill you". they hold residual electric current for long periods after being switched off-he quotes the example of a TV(holds similar components to the dangerous ones in PSU's) which he had in his attic for years, and still got a nasty shock off it. Any electrical guys on forum who can supply more details of the nature of the threat ? cheers icy |
icyred (5795) | ||
| 257654 | 2004-08-02 23:25:00 | why not just get another psu they're cheap enuf .. | drcspy (146) | ||
| 257655 | 2004-08-02 23:41:00 | A fan is cheaper - check Dick Smiths site for details on them. Bye |
Peter H (220) | ||
| 1 2 3 | |||||