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Boot Up Problems

By jstarbolt ·
My computer is still having boot up problems--when I turn it on, I hear the fan and see the lights but there is no beep--to show a successful post. The I hit reset and try to reboot with the same results. Then I turn the power off for a few seconds and then turn it back on usually with no beep. It is taking more and more cycles to get the computer to go into POST and then takes it several reset cycles to go past the spec sheets. After that it seems to run fine.

I took the earlier suggestions and reseated the cards and RAM and checked the cables. But I had the same results as before.

In checking my books I found a similar sympton in Meyer's A+ book: "an inoperative device can sometimes disrupt the POST, forcing the machine into an endless loop. This causes the PC to act "dead"--no beeps and nothing on the screen. In this case you need a device to monitor the POST and report which piece of hardware is causing the trouble. The devices designed for this are known as POST cards."

I just found this this morning and so my questions are-- How do you get POST card without paying a fortune for them? And why should any device seem inoperative enough to stop a POST and later seem to work fine?

I checked my Device Manager and all devices seem to be working fine. So how do I stop the endless loop without going through the terrible routine described above?

Is there a way to reset some settings to allow me to boot up from a startup disk--which I have been unable to do? I checked set up and have the right settings enabled I think.

Thanks to the people that tried to help me with my last question--however it seems that it didn't go far enough and I am back to square one.

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by tech_wiz03 In reply to Boot Up Problems

Ok, a Post card or also known as frontpanel tester is expensive and not used by very many industry prof's. A cheaper one / used is also not going to be much better. I have worked the industry for 35 years and can tell you that the post card will do little for you unless you are very versed in binary systems and bios level debug.

reduce your system to just cpu/mbo/mem and video/monitor if you can get past post and boot from floppy you know problem exists with harddisk cdrom's or option cards. If this fails then remove video card and retest if system fails it's your video. Replace memory if retest still fails it's cpu or mbo. Try mbo and cpu on another power supply if system works it was power supply. You understand it is a processes of elimination.


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by Mark In reply to Boot Up Problems

POST cards can be quite beneficial and usually are not prohibitively expensive if you are going to be fixing PCs. However, they usually only tell you what is causing the board to not POST and if it's imbedded on the board, you pretty much are resorting to replacing the board. But they will also show where the system is hanging, like RAM, Video, Cache, etc. Anyway, back to your issue, I would suggest first clearing the CMOS which you probably already tried. Then find the latest BIOS update for your board and reflash it. I have had some boards with poor coding that causes this symptom and a reflash will fix it. Also some viruses are able to change the BIOS code and a reflash will overwrite the virus code. In any case, these steps assure you have a good BIOS. If you still have problems, my first suspect would be power supply. My second would be RAM. Do you have any other symptoms when the system is running like program errors? Another possiblity could be a peripheral like a USB device, printer, etc. When troubleshooting, disconnect anything unnecessary like printers, cameras, or any USB device. I have seen a USB device draw too much power and cause this symptom too.

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by TheChas In reply to Boot Up Problems

As POST cards do not get sold in the high volumes of things like video cards and modems, the cost of developing and manufacturing the cards is a LOT higher than 'normal' plug-in cards.

I would start by making sure that the CPU and BUSS clocks are properly set in BIOS settings.

I have had CPU clock problems with a number of Socket A motherboards. I now manually set the CPU FSB and multiplier on ALL Socket A systems.

Make sure that the memory clock and PCI buss clock speeds are correct while you're at it.

My next suspect would be the motherboard itself.
Just over 1 year ago, a batch of bad electrolytic capacitors was produced and made their way into a number of motherboards.


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by memyslfni1969 In reply to Boot Up Problems

not to be to obvious but have you checked your bios battery?

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