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2 votes
2 answers
4k views

Need assistance in connecting my PSU fan cable

I noticed that my PSU got really hot during gaming (to the point where it shut down my computer). I searched my PSU's model name (AXP-630P12P) and it said that the fan on the PSU was supposed to start ...
user307842's user avatar
0 votes
0 answers
2k views

How much power can a 3/4 pin fan connector handle?

I was thinking of buy 5 very high power 120mm fans. These ones to be sepcific. Delta PFB1212UHE. These fans require a lot of power. They are 4 amp, 48 watts. They sell them with the 3 pin ...
AtomicPorkchop's user avatar
-2 votes
2 answers
876 views

Planning out an NES PC build (on the cheap) [closed]

I'm in the process of building a PC inside an NES case. I'm trying to get as much power out of it without breaking the bank. Rigging up the power switch and reset has been well documented, so this isn'...
Evan Parsons's user avatar
2 votes
1 answer
125 views

Computer is OFF, and fans turn on and off twice a day

We have an OptiPlex 755 desktop acting quite strangely here. It's powered off, not in standby or hibernate, and from time to time it will just start spinning its fans for a few seconds, and then turn ...
Wouter's user avatar
  • 1,651
0 votes
1 answer
47 views

power supply without original fan

Original fan (120 mm) rotates fast and makes quite a big noise I replace original fan with 140 mm fan which makes little noise. Original fan was located ~ 5 mm from other parts of power supply. The ...
Andris's user avatar
  • 103
1 vote
1 answer
6k views

CPU fan turns on for a second and stops, PC does not start at all

I have checked my PSU and it works fine. When I turn on the MOBO, the CPU fan, case fans and the psu fan itself turn on for half a second and then turn off. The PC remains off. The Bios light turns ...
haran kumar's user avatar
2 votes
3 answers
3k views

How do PC fans know how fast to spin?

Building my first PC tomorrow, and one thing is confusing me. How do the fans know how fast to spin? The CPU fan is connected to the motherboard's 4pin cpu_fan socket, so I can understand how it can ...
Starkers's user avatar
  • 2,356
0 votes
1 answer
72 views

Dozens of spontaneous reboots

I am working on a SUSE Linux based system that runs 24/7 and has done so for around 3 years although I cannot say that it has not been rebooted in that time. At 9th June there apparently was some sort ...
Steve's user avatar
  • 1
1 vote
0 answers
1k views

CPU fan failing to start on boot sometimes

I have a fairly old desktop, which I like to use a fair bit over my newer PC's however sometimes on boot, the CPU fan fails to start. I had this problem previously, and I simply bought a new fan. I ...
Brandyn's user avatar
  • 601
1 vote
2 answers
13k views

Did I fry my motherboard or my power supply?

I just installed a second video card (GeForce 7900 series) alongside my older GeForce 6700 Series. After the computer was powered on for about a day, I came back to find the unit dead, with the power ...
MarathonStudios's user avatar
1 vote
2 answers
491 views

600W vs 1200W PSU in terms of noise? [closed]

I've been wondering, if my system draws about 400W at peak, which PSU would be quieter? assuming both are from the same manufacturer using the same type of fan and cooling mechanism? My theory was the ...
KoKo's user avatar
  • 1,684
0 votes
2 answers
2k views

What is the best position for power supply unit?

I would like to buy a new computer case. Last time I bought a computer was in 2008 and many things have changed up to day. Many new computer cases have power supply unit (PSU) placed down, at bottom. ...
guest86's user avatar
  • 219
1 vote
3 answers
16k views

PSU failing or Mainboard failing?

I am having some troubles lately powering on my desktop workstation. While starting up the PC after being off for hours (usually at least 8 hours) it randomly fails to do so. What happens is that : ...
Andrei Rînea's user avatar
2 votes
1 answer
2k views

Antec 900 fan plugs are not compatible with PSU or motherboard

I have an Antec 900 case, which has two small fans in the front, a large fan on top, and an exhaust fan in the back, all of which have individual power cords/plugs. They look identical to the piece on ...
tomsawyer95's user avatar
0 votes
2 answers
2k views

Does a chassis fan DC12V 0.18a have higher RPM than one with DC12V 0.16a?

I am going to purchase a few chassis fans (12cm) for my computer and the salesperson told me that a fan with DC12V 0.18a has higher RPM than one with DC12v 0.16a. I don't know anything about ...
bobo's user avatar
  • 1,829

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