Question about HP (122226-001) Fan Controllers
Its actually looking at the RPM feedback of the fan . its a 3 wire fan , ground, +12 volts , and RPM to the motherboard. If the rpm is missing or slower than set in BIOS it will shut off the PC before it has a chnace to over heat. Make sure the case fan is correct type and plugged into the correct pins.
Posted on Jan 29, 2013
Sounds to me like you could have a couple of possible problems.
First and most importantly would be to make sure that your cpu fan is clean and running. This is the fan that is located on the large heat sink on the mother board. A lot of times, especially on older systems, this fan and heatsink will get covered with dust and almost always cause an overtemp fault. Usually blowing this out with electronics cleaner will rectify this but if it has been like that for a while you may need to replace the cpu fan. Most electronics stores will sell these fairly cheap.
Your other problem may be that you need to purchase another case fan to cool the cpu more effectively. Generally though most premade systems come with enough fans.
Also you may need a new fan for the one that he replaced. It sounds to me like you may have a bad connector either on the replacement fan or the power supply wire. A real easy way to tell is to wiggle the wires a little bit. If your fan speed fluctuates odds are you've got a loose connection. It can appear to be fine but sometimes those wires on the molex connectors come loose and make don't make good contact. When that happens it may work fine for a few minutes, but then the first time that you get vibrations it stops working.
Posted on Jul 30, 2009
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Posted on Jan 02, 2017
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