These things are pretty crappy - can't even handle 25V. This was a Foxconn one; the Delta version is better IMO. Intel relies too much on thermal capacitance nowadays. This thing is certainly not capable of dissipating 85W continuous.
+M4RSHMALLOW Gaming Comedy and Potato literally started hovering above the table XD I wonder what would happen if you put 4 of them on some light foamboard and set them all to 20V...
Stupid preteen me once connected a casefan to a 230V household outlet (yeah don't try that). It ran for a couple of seconds or so before the coils melted - you could see them glowing inside the housing. Luckily, nothing else happened :D
There's absolutely no chance for that to happen, the 230v is AC and these fans are DC, if you were doing that then it just blow up and not a slight chance of spinning
Haha, I put a 3v LED in a 250v outlet once when I was 7. It only lasted about 3 seconds before it made a huge pop sound and the outlet was covered in soot. Needless to say, I learnt not to mess with outlets from then on.
I found a old broken light string which had small bulbs I took one of them and used a battery it glowed very low so I hooked it up to a outlet and made nice firecracker
I once cut a cord off a pedestal fan, then wired it to a cheap eBay siren box thing, plugged in the cord and switched it on. almost blew myself up, only tripped the fusebox thankfully.
Born in 1984 so I was a kid in the 1990's so I would love that cap gun smell! I once did a whole roll of them with a giant rock that was loud but the smell was all so satisfying but not my father saying Peter why the hell did you do that, don't you know those things aren't cheap?
The transistor type device you've mentioned on those cheap fans are actually a hall effect sensor, it detect the magnetic field of the magnet on the fan then turn on/off the coil around accordingly
the coils were not harmed...or went open either.. you blew the controller chip(isa) and the 16volt cap.. once you kill the controller its gameover cant kill it after that
I think these actually run at 12V on .18A. It likely blew as soon as it did because of the high current. You'd be able to pump a fair amount of voltage if you operate the current at the ~.18 value.
+Goto Tech Reviews ...That's not how electricity works. If you limit the current, the voltage will drop accordingly, and the power consumption will stay constant.
So I looked up the specs on this the other day, peak voltage at like.23a is 13v I believe. But my knowledge is still new to these... He doesn't appear to be using and pwm control for the fan, what does that do to the system do you think?
i thought watts law was ampsxvoltage=watts. so the only thing that would increase would be the watts and not the current on variable voltage. amps would only increase if the resistance changed.
I had that happen to my Graphics card's fan and I wasn't prepared at all to get a cooler for it but I managed to fix it by drilling a small hole under the edge of the sticker and put a few drops of lubricant. At first there was a noticeable difference but it took it a week for the lubricant to truly stop it from rattling and it was after that running like new. In fact it still is after about a year :D
fyi you shouldnt turn off a power supply when an inductive load is connected, since inductive loads love to store energy in magnetic fields, when you turn off your power supply, the feild collapses and a huge energy spike could damage your power supply
bullshit. the fan doesnt have inductance for shit, the chip has burned enough to kill all the spikes and the iron core prevents it from inducing high voltages anyway
Why does Tux have weird fucking indentations in his fat penguin body? It's like the artist used his own body for reference, trying to emphasize his musculature. Anyone care to explain? Because for some reason that is like THE image for Tux. It could be a cute image if not for the shading.
if you want to avoid issues like this, consider using large heatsinks without fans, and use the rack fans to cool your cpu, but use a really big heatsink and high airflow fans
+I USE The CPU isn't heavily loaded, so thermal performance is not an issue. They are quiet and free, and I have a stash so I can keep replacing them as they die. I fully agree that they suck ass (I will never build a workstation with one), but they work fine in this situation - for now anyways.
+I USE The stock coolers are fine for use in a normal non-overclocked application, though proper server hardware wouldn't have a single CPU fan and wouldn't use the retail cooler either.
the server won't "break" because of the cooler. im pretty sure most people who build servers test the temperatures before actually deciding on the cooler.
Well, duh it won't just suddenly break. But why risk your server on a cheap cooler when you can easily buy a good one for like $30 bucks USD. You need a server up and running 24/7 without problems. So why use this cheap ass cooler.
LastStopGaming I care: FX series cpus are damn cheap, and use DDR3 Ram, which is also super cheap (FX 8300+ Kingston HyperX savage 2x8 GB (+AMD Radeon HD7870)= low budget but still powerfull PC)
Popped some traces on an old mobo when the cpu fan went dead short. System wouldn't POST until I resoldered a couple wire bridges over the burnt/severed sections...
Reminds me of a college prank at 4:29...When you go to your neighbors dorm room with a cap gun and a flash camera, and knock on their door, then fire the cap gun and take their picture....the loud noise and bright flash stuns them and the think they have been shot.
The start of this video is like when you want to cook something but the recipe has a whole life story before the instructions EDIT: nvm it was the whole video
There is a small IC that reserves the purpose of electronic commutation. PC fans, even though they are DC, the coil need AC power to run. That IC converts DC into AC.
People should not sniff over heated/burnt electrical equipment. The plastics often give off toxic fumes concluding cyanide. Touching some burnt plastic have an acute that can continue to burn through your fingers for days.
Blowing up transistors and restistors by massive overvolting and thinks "That is unusuall" when it starts to smoke, brilliant. Who would have figure too much voltage would create too much heat, now we know :)
All you needed to do was peel back the sticker, lift up that rubber or plastic plug, and add a few drops of 3-in-1 oil, then rotate the fins manually, a few times, then hook it up again. I do this with any cooling fans which have had lubrication literally dry out. Been using the same fans for a decade now.
Brushless motors have little microcontrollers in them that generate the drive signal that allows the rotor to commutate. Overvolting controllers makes smoke.
