Packard Bell istart 1369 switchung off when warm

SOURCE: sony vaio desktop

Pricewatch.com is a place to go to get fan prices and suppliers but a local PC shop usually has a pile of old used fans...fans seldom go out....but....

You need to check the power supply for the fan size and even, if a newer model power supply, check to see how many fans there are (although most fans are the same size in most power supplies).

This assumes you are willing to repair the power supply. If so you will probably have to remove it from the computer. Open the power supply. Cut the wires to the fan (although some have a pin to simply disconnect) and then replace it with a new fan plus more than likely do a little soldering. But do I recommend this...NO.

Why....well if the fan has failed it probably failed for mechanical reasons....i.e. dirt implying that a can of pressurized air was not used to once every couple months to blow out the entire computer....power supply and other fans....plus dust in general. Also....if an older machine it makes more sense to replace the entire power supply (they ultimately fail) with the same wattage as is on the one you have particularly if it's a few years old. This is also a lot cheaper than ultimately replacing a motherboard, cpu et al. Back to dirt. There are very few mechanical parts on a computer ....the fans, the trays or inserts on media, and the arm on the disk drive. The trays or inserts for media almost never go out and when they do it's the result of someone inadvertently putting pressure on it usually, the fans seldom go out before the power supply does but the arm on the disk drive...well when it starts to growl you best copy your drive to another but by all means copy your work to some back up media. The life of both the power supply and your computer in general can be increased by keeping it clean....power fluctuations and heat are your enemies.

While inside the power supply you might also want to check to see if it is fused. If it is and the fuse is blown...replace it. It was not the fan.

If you do take the power supply out (and its an older machine where the power cable or cables - newer computers connect in two places- to the motherboard) make sure record the way it goes back in. Failure to do so will be abrupt...as in POOF....there goes the motherboard. You plugged in in backwards. Newer motherboards are designed to prevent this with either a pin block or a one way only clip.

Lastly....power supplies are a pretty well developed product from a manufacturing perspective. Any low cost power supply is adequate. Those that sell for above $20 (in 2008 dollars) offer no real advantage for the typicial pc owner.

Hope this helps....Tango. Send chocolate to [email protected].

SOURCE: Suitable psu for packard bell istart 1359

Dera Telxon,

The PSU you have linked is FSP250-50LPU - which is not the one in question.

Thanks and regards,
Bandi

Neim Sims

• 8 Answers
• Posted on Oct 19, 2008

SOURCE: HP Desktop power up problem

Bad ram probably, units do that all the time at my job. Most of the time, it is the power supply that does not have enough power to invest into all hardware that makes your pc. even if you had a 400watts power supply, the next time you are buying a power supply you should do some kind of upgrade. 600 watts or more. If you have a high end graphics card then you are indeed in need of a new power supply. also check your cpu, its fan, check if it still seated properly, if there still paste on top of it to hel cooling it down, and protect it from statics. if you added new hardware, remove them and keep checking if it is working. To do manual diags, you need to take the unit apart. I would start by removing rams first, and check ram one by one, then hdd, then disconnect other components until i find the actual part. I am sure it is your powersupply, worst case scenario is you mobo is gone.(but it powers up and shutdown after all so let us hope you don't have a dead motherboard." and remove the dust please, dusty units do not run properly. Neim Le Legionaire.

SOURCE: Dell 8400 heat sink / fan issue

Ok just sharing some info. Some design of m-board is design that cpu fan is controlled via motherboard sensor and software.

For good dissipation of heat, some tips are based true experiences, like the way the thermal compound is being applied, the brand of thermal compound, size of the heatsink, fan, and the overall air system of the cpu case.

As for applying of thermal compound an enough amount to cover the processor surface the one that contacts with the heatsink(commonly the one on the center). Too much or too less is not good.. Nano silver and brand is important too.

Some use aftermarket CPU cooler. And the way the airflow on the CPU case. Exhaust on the upper(says that hot air is commonly on the upper) and intake on the bottom( cool air tends to be on the bottom portion). Additional case fan to be added.

And also how you clip the heatsink on its place. It must be level of parallel to the surface of the processor.

And maintenance issue, clog heatsink and dirty fan blade.

Hope this helps.

SOURCE: Compaq: CPU fan has failed PC will automatically power down

Your fan speeds up and slows down in response to temperature inside the computer. More so the CPU.

I would suggest getting a can of compressed air made for computers

take it outside, take of the side and blow all the gunk out of there, Really go to town around the fan (you might want to wear eye protection)
While you are in there just check that the CPU cooler itself is not loose

If it is it will have to be re-seated.

If it needs re-seating don't just take it off and put it back on as that might make things worse with your temperature problem they have to be cleaned and new thermal grease put on ($2-5)

DON'T remove the CPU just the fan/cooler assembly.

You must clean both the surfaces without scraping anything off. Use isopropynol alcohol and cotton bud sticks until both surfaces are clean, you can use your finger nail to scrape harder residue if you wish but nothing else.

DON'T pour the alcohol over the CPU

Now apply some new thermal grease (most computer shops have it)

Be careful about how much you put on

Here are some basic instructions

Once you have re-assembled your cooler and re-connected it check everything is OK and power up the computer.

If everything went to plan you should now be back in business
　
Hope this gives you the information you need

Bob
Moderator

It would be very decent of you to consider the quality of our experts answers and judge them accordingly as you pass through fixYa.
Thank you