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#1
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Frequent Crash of Windows XP
Hi,
I am facing the problem very often especially at one specific location... As mentioned in various posts.. we also suspected the hardware and we have changed the hardware (infact did it quite a few times). We have now replaced the complete machine of different brand etc. The same hardware is running in my office perfectly fine. I have put the machine on the raw power and left it running for few days. It works even when the machine is abnormally switch off (due to power loss) multiple time in a day. Where as when the same machine with same configuration is running in the field it carshes very offten with the error messages similar to "C: \Windows\System32\Config\System is missing or corrupt". At times I am able to recover the disk from the crash. I am basically looking for the answer that why does this machine crashes, where as we do abnormal swtich off (without proper shutdown) of the PCs in office / home, they don't crash. They why this machine. Two configurations of the machine which we have tried are - 1. Via C7 Mother board with 1 GHz processor, 1 GB RAM, 4 GB Disk On Module 2. Intel Borad with 1GHz processor, 1 GB RAM, 4 GB InnoDisk Disk On Module (HDD), multiple serial ports (4 in number). Operating System: Windows XP Professional SP2 without any hot fixes/ updates (earlier we were using Windows XP Embedded SP 2 with Feature Pack 2007, we switched to XP Professional thinking we are missing something in XP Embedded configuration) We have tried different make of DOMs, suspecting something to do with the quality of DOM. We have also tried switching of the "Write Cache on Disk" option of Windows. The application that we are running is basically polling multiple devices on the periodic basis, every few milliseconds. It then writes the data to SQL Express Database. Application is developed using MFC. Any answer / tips are welcomed. Thanks Rajesh |
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#2
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Frequent Crash of Windows XP
Perhaps you have a power voltage problem in the field?.
RT wrote: Hi, I am facing the problem very often especially at one specific location... As mentioned in various posts.. we also suspected the hardware and we have changed the hardware (infact did it quite a few times). We have now replaced the complete machine of different brand etc. The same hardware is running in my office perfectly fine. I have put the machine on the raw power and left it running for few days. It works even when the machine is abnormally switch off (due to power loss) multiple time in a day. Where as when the same machine with same configuration is running in the field it carshes very offten with the error messages similar to "C: \Windows\System32\Config\System is missing or corrupt". At times I am able to recover the disk from the crash. I am basically looking for the answer that why does this machine crashes, where as we do abnormal swtich off (without proper shutdown) of the PCs in office / home, they don't crash. They why this machine. Two configurations of the machine which we have tried are - 1. Via C7 Mother board with 1 GHz processor, 1 GB RAM, 4 GB Disk On Module 2. Intel Borad with 1GHz processor, 1 GB RAM, 4 GB InnoDisk Disk On Module (HDD), multiple serial ports (4 in number). Operating System: Windows XP Professional SP2 without any hot fixes/ updates (earlier we were using Windows XP Embedded SP 2 with Feature Pack 2007, we switched to XP Professional thinking we are missing something in XP Embedded configuration) We have tried different make of DOMs, suspecting something to do with the quality of DOM. We have also tried switching of the "Write Cache on Disk" option of Windows. The application that we are running is basically polling multiple devices on the periodic basis, every few milliseconds. It then writes the data to SQL Express Database. Application is developed using MFC. Any answer / tips are welcomed. Thanks Rajesh |
#3
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Frequent Crash of Windows XP
Hi Bob, Thanks for your reply. My query is, why does voltage issue only effect the Hard disk error only in one specific area and why it does not effect any other component. Like in all the crashes I had at this location windows shows messages related to C:\windows\system32\config\system is missing or corrupt. Regards Rajesh -- ------------------------------------------------------------------------ 's Profile: http://forums.techarena.in/member.php?userid=47782 View this thread: http://forums.techarena.in/showthread.php?t=958046 http://forums.techarena.in |
#4
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Frequent Crash of Windows XP
Unless you can provide evidence of other environmental factors that
would explain the reason for the difference, sagging voltage is the only thing that might explain the problem. wrote: Hi Bob, Thanks for your reply. My query is, why does voltage issue only effect the Hard disk error only in one specific area and why it does not effect any other component. Like in all the crashes I had at this location windows shows messages related to C:\windows\system32\config\system is missing or corrupt. Regards Rajesh |
#5
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Frequent Crash of Windows XP
One major difference is also that these systems are in highly tough environment (that is gas station). There is no Air conditioning, the machine is kept in an Networking Rack enclosure which has a fan. No one access the machine directly, it gets switch on as soon as UPS is turned on every day in morning. In the night when Gas station is closed, the machine is shutdown by pressing the power switch once, this way windows initiate the shutdown sequence. I hope this information may help. Best regards Rajesh -- ------------------------------------------------------------------------ 's Profile: http://forums.techarena.in/member.php?userid=47782 View this thread: http://forums.techarena.in/showthread.php?t=958046 http://forums.techarena.in |
#6
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Frequent Crash of Windows XP
wrote:
One major difference is also that these systems are in highly tough environment (that is gas station). There is no Air conditioning, the machine is kept in an Networking Rack enclosure which has a fan. No one access the machine directly, it gets switch on as soon as UPS is turned on every day in morning. In the night when Gas station is closed, the machine is shutdown by pressing the power switch once, this way windows initiate the shutdown sequence. I hope this information may help. Best regards Rajesh Have you considered the type of UPS you are using ? http://www.apcmedia.com/salestools/S...NM3Y_R5_EN.pdf The simplest kind of UPS is the "Standby UPS" in Figure 1. I have one of those, and one thing to note about those, if there is a lot of variation in source AC line voltage, that variation is passed right through the UPS unchanged. The "standby" UPS is a "straight piece of wire" when not running on battery. The Standby type UPS is also the cheapest type of UPS you can buy. It could be that your problems are related to power, and could be corrected with a different kind of UPS. The double conversion UPS is an AC to DC to AC conversion box. By doing so, the output AC is virtually unaffected by what is happening on the input. It means a fast transient is much less likely to get through to the computer and affect it. You might experiment with something like that, to see if it makes a difference. The double conversion UPS runs hotter than the standby UPS, and some are equipped with a fan to cool them. If you don't want to buy one, try renting one. Also, you can get power analyzer equipment, that can record how "clean" the power is, coming out of the UPS. For example, the device here records "transients, sags, swells", and perhaps if you rent a similar device, you could get some idea how bad the power coming out of the UPS is. A power utility may use devices (older models than this one), to record problems in industrial power situations. Again, you may be able to rent one. http://www.powersight.com/products/i...ails.cfm?id=60 Other possible problems are a strong source of interference affecting the motherboard. Or a grounding problem, with respect to the remote sensors or devices the motherboard is connected to. Since you have two systems (VIA C7 and Intel board), you could run the systems in parallel at the gas station, and experiment with the one not being used by the business. Run them both off the same UPS. Don't connect the serial ports, on the "experimental one", and see if it becomes more stable. Or, connect a different kind of UPS to the experimental one, and see if the symptoms improve on that one. To simulate a serial port, you might use one serial port as a source of bytes, and send them to a second serial port, all under the control of the same motherboard. That way, there is no electrical interference (since the cable could be very short, and connected between serial ports). That way, you could continue to simulate the application, while looking for the problem. New_UPS ------- Test_computer Use one serial | ^ port to test | | another, to avoid +--------+ ground problems. HTH, Paul |
#8
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Frequent Crash of Windows XP
I would inspect the placement of the system, incoming cables & routing. Any
chance or EMI or high frequency noise coming into the system? Are the incoming cables routed with or close to electrical wiring or flourescent lighting? |
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