Question about Computers & Internet
I have a Packard Bell istart 1369 desktop pc that switches off after a certain amount of time but leaves the blue power button lit, meaning I have to switch it off at the wall to restart it. after restarting the time it stays on is reduced, making me believe that it is heat related. The power supply failed about a weeek or so ago & was replaced with a compatible one that is working fine. I have also removed the CPU, cleaned off & replaced the CPU paste ,heat sink & fan so do not believe the heat problem is CPU related. Does anyone know if this is an issue with this model & if it may require a new MB? I did wonder if the power supply that failed could have caused damage prior to failing & would request anyone with any knowledge of this model to point me in the right direction. Thanks in advance. Berwyn32
I assume you have had it for a while? May be the CPU, Graphics, Mobo/components, memory, etc.? Have you adjusted the Power Options in Control Panel, High Performance, Sleep and Hibernate to Never? Things start going one by one. Short story, I had a HP/Compaq SR1120sx, first the PSU, then the Audio, one channel, etc., etc., etc. If I continued replacing components the cost would have bought a new one. With the cost of Desktops and Laptops, due to the rise in Tablet, netbook, Smartphones, it may be wiser to buy a new one. Take a look at the Desktop prices and you make the decision. Invest in the old one or.......Perhaps it's time to let her go? A kiss on the cheek and send her out into the world.
Posted on May 08, 2013
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Posted on Jan 02, 2017
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 Tangoblue@netscape.net.
Posted on Feb 05, 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.
Posted on Oct 19, 2008
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.
Posted on Sep 23, 2009
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
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Posted on Nov 27, 2009
Tips for a great answer:
Take the guesswork out
if you're not sure if a module is right for your system, use the Crucial Memory Advisor tool for a list of guaranteed compatible modules. first you will need to select the manufacturer from a drop down list then select your product line from a drop down list then select the model then click find it will take you directly to compatible ram also you will have an option to scan your system
hope it helps
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