Question about HP Compaq Presario SR2023WM PC Desktop

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Hp sr2023wm core just shuts down. boot back and shuts down again! runs for hrs and then poof down again. possibly a power suppy? or an overheating processor?

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  • Master
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It most likely an overheating processor, remove heat sink assembly and clean up including fan, return back and put some silicon paste on top of the processor. let on and observe. check also for board capacitor if no sign of burn.

Posted on May 02, 2010

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  • Master
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If you are overclocking the processor it may be overheating.

ALSO check that the fans are running, including the one on the processor AND vents and heatsink fins are not clogged with dust.

Also consider if your pwer to the unit MIGHT be glitching or brownout due to heavy loads or bad receptacles or wiring. Make sure you are not running off a switched wall receptacle.

Posted on May 02, 2010

  • OSU-Buckeye Feb 22, 2011

    I just had this same problem and it was not an over-temperature CPU. It behaves just like it, but can shut down very quickly after power-up. Sometimes it's hard or almost impossible to boot because it shuts down before it can even complete a boot. Hopefully this will help other people. Here's what it was...

    My problem was the motherboard (MB). My system would power down just like a thermal problem, but that's not what it was. I think many systems will now start failing like this because the problem was caused by internal temperatures. The high temperatures over time damaged a group of capacitors (caps) near the CPU socket. All of the caps that failed were of the same brand. Other caps in the same vicinity from another manufacturer did not fail. If you know how to solder and own a high temperature soldering pencil with a very small tip you can do this repair yourself. Otherwise, you can replace the whole MB. It's easy to do. Your replacement will come without the CPU so you will have to take yours out and put it in the new MB. You will need to remove the heatsink to do this, and it's best you order some thermal paste when you do this job. The HP system number of this computer is RE747AAR-ABA. If you search for this you will find that replacement MBs have the number:

    A8M2N-LA NAOS GL6 (Asus number)
    RB043-69001 (HP number)

    Now, back to the capacitors... There are 6 electrolytic capacitors next to the CPU socket towards the back of the computer. You can spot the bad ones because they will have swelled. Some may eject carbon-like grime either from the top or at the bottom. All of the ones that were bad on my MB were brown and had a KZG marking. These are 1800uF 6.3V capacitors. I think they are Chemi-Con parts, but I'm not sure. There are many posts on the web claiming there was a bad batch of caps that got out. Looks like HP got them. I had one more cap that went bad, it too was brown with same marking but was a 1000uF 16V capacitor. None of the black (dark blue) caps went bad. There are more brown caps on my MB and they will probably go bad eventually too. I'll be ready for them.

    Good luck.
    (Posted by Buckeye)

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Hi..

If the laptop shutdown maybe it cause overheating.
Laptop shuts down? Computers may not be smarter than people, but if they’re designed properly, they will shut themselves down before overheating to the extent that they do themselves damage. If the smart person keeps turning the notebook back on and figures out a way to foil the protection, the laptop is probably doomed. Once a laptop shuts down for thermal event protection, it may refuse to power back up for a fixed period of time, five or ten minutes, or it may begin to boot and shut down immediately as soon as it boots to the point that it can figure out that its too hot. The over-temperature protection is generally a BIOS rather than an operating system function, so one sign of an overheated laptop is one that shuts itself down while you’re using it and then refuses to boot as far as the operating system unless you leave it alone for an hour or so to cool down. Unless you’ve been working in a very unfriendly environment, high temperatures, direct sunlight, etc, you should take even a single overheating shutdown as a warning to back up your data at the first opportunity and to give the cooling system a serious cleaning.

Good luck !!!

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