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Computer freezes upon moving it
My computer often sort of freezes when I'm moving it (even with just a
few millimeters motion, e.g. when I'm vacuuming around it). The symptoms are similar to when a process takes up 100 % of CPU: very slow responses to my commands - sometimes even a few minutes (the mouse can be moved around normally, though, and pressing NumLock, ScrollLock, CapsLock on the keyboard reacts immediately); also, some processes or applications cannot be shutdown, and you cant' really start another application - you get a dialog box and a logged event: Event Type: Information Event Source: Application Popup Event Category: None Event ID: 26 Description: Application popup: xxxxx.exe - Application Error : The application failed to initialize properly (0xc0000142). Click on OK to terminate the application. I've done some extensive RAM testing, but both sticks seem to be all right. The mainboard is Abit IS7-V2, running Windows 2000 Professional. CPU is Intel Celeron D320 2.4 GHz. What could be the cause for this and how to remedy the situation (apart from leaving the box intact while on)? |
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Computer freezes upon moving it
"Andrew Rossmann" wrote in message I would double-check all cables and mounting points. Make certain there isn't a loose screw floating around inside, or a loose mount for the motherboard or other part causing intermittent connections. In particular, pay close attention to the CPU and heatsink/fan, as that is often a lot of weight hanging on it's side (assuming this is a common tower-style case.) You may also want to remove/re-insert the memory if you haven't. There could be some corrosion or a bad connection that any slight vibration causes a glitch. Power connectors also, Molex connectors are often loose or a single wire is loose inside the connector itself. |
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Computer freezes upon moving it
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Computer freezes upon moving it
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Computer freezes upon moving it
On Sun, 01 Apr 2007 00:41:59 -0400, Kyle wrote:
Add to the list poor electrical contact at the crimp locations for the Molex HD power connector pins, which caused intermittent HD problems with one system I worked on. It sure sounds like a poor electrical connection somewhere, or even more nightmarish, a broken circuit board runner that is making and breaking in response to mechanical movement causing flexing of the circuit board. Boy you got the nightmarish part right as this type of failure can be a real PITA. I have had the HD power plug do that more than once. Actually you shouldn't have this problem unless you are unlucky and got a lemon connector or in my case I'm plugging and unplugging drives all the time. Most frustrating one I ever had to trace down ( the first time) the connection would only fail when I was using Drive Image to backup about 10GB of data - Using the copy partition function. It would make it about 3/4 of the way through and then lock up. Small backups were not a problem and I could boot both drives without error. After a LOT of cussing I found that one of the wires (1 red, 1 orange and 2 blacks) was ever so slightly loose were it slipped into the back of the plug. My guess is the high throughput under those conditions made just enough heat to expand the fitting and open that connection. I never narrowed it down more than that as I just took some wire cutters and cut it off and wired up a good plug. It took me a good 4 intense hours of work to find that. But I could have done it faster if I'd followed the suggested method of removing every thing you can and still boot. Then add one device at a time until the fault shows up - But heat of the moment and all that... Another culprit to watch out for especially with 80 wire EIDE ribbon cables is a broken or failing connector where the wires attach to the plug. Those are small wires and they can't take a lot of stress - remove by pulling the connector NOT the cable. Use needle nose pliers if you have to. BTW, this is a good NG - Lots of wise and experienced folks in here... -- Linux Help: http://rsgibson.com/linux.htm Email - Replace borg with net |
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Computer freezes upon moving it
"Ron Gibson" wrote in message
news | On Sun, 01 Apr 2007 00:41:59 -0400, Kyle wrote: | | Add to the list poor electrical contact at the crimp locations for the | Molex HD power connector pins, which caused intermittent HD problems with | one system I worked on. It sure sounds like a poor electrical connection | somewhere, or even more nightmarish, a broken circuit board runner that is | making and breaking in response to mechanical movement causing flexing of | the circuit board. | | Boy you got the nightmarish part right as this type of failure can be a | real PITA. | | I have had the HD power plug do that more than once. Actually you | shouldn't have this problem unless you are unlucky and got a lemon | connector or in my case I'm plugging and unplugging drives all the time. In my case, the connector was fine, the contact pin (that slides into the connector) crimped on the end of the wire was making good contact with the insulator and intermittently touching the conductor. | | Most frustrating one I ever had to trace down ( the first time) the | connection would only fail when I was using Drive Image to backup about | 10GB of data - Using the copy partition function. It would make it about | 3/4 of the way through and then lock up. Small backups were not a problem | and I could boot both drives without error. | | After a LOT of cussing I found that one of the wires (1 red, 1 orange | and 2 blacks) was ever so slightly loose were it slipped into the back | of the plug. My guess is the high throughput under those conditions made | just enough heat to expand the fitting and open that connection. | | I never narrowed it down more than that as I just took some wire cutters | and cut it off and wired up a good plug. It took me a good 4 intense | hours of work to find that. | | But I could have done it faster if I'd followed the suggested method of | removing every thing you can and still boot. Then add one device at a | time until the fault shows up - But heat of the moment and all that... | | Another culprit to watch out for especially with 80 wire EIDE ribbon | cables is a broken or failing connector where the wires attach to the | plug. Those are small wires and they can't take a lot of stress - | remove by pulling the connector NOT the cable. Use needle nose pliers | if you have to. | Well, I didn't mention the other PITA electrical connection problem, but cold solder joints can also give the intermittent failure symptoms. I've spent plenty of time tapping on circuit boards in my day. If one does try this, use a non-conductive tool for the "tapping" and tap lightly. Seems that such problems are less common with the vapor phase soldered SMD boards, but one can never be too confident with any manufacturing process as things can fail anywhere. I've seen dirt on a mobo interfere with the operation of the IDE controller, simply brushing the dust/dirt of the mobo fixed the problem. And the comment on IDE cables is very pertinent, as I tend to pull on the cables to remove them, which I know is a bad habit, but getting needle nose pliers to grip the connectors is equally a pain. Too bad the old connector ejectors (which add maybe a few cents to the cost of the connector) are no longer in use, they DID server a valid purpose. -- Best regards, Kyle |
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Computer freezes upon moving it
On Mon, 02 Apr 2007 02:41:52 -0400, Kyle wrote:
Well, I didn't mention the other PITA electrical connection problem, but cold solder joints can also give the intermittent failure symptoms. I've spent plenty of time tapping on circuit boards in my day. Well you got me on the solder thing. I'm just too much of as klutz to be fooling with solder connections. If it gets to that point I buy another mobo as things can fail anywhere. I've seen dirt on a mobo interfere with the operation of the IDE controller, simply brushing the dust/dirt of the mobo fixed the problem. Here's a wild one. My old Engineering prof was an instrumentation expert. They had designed some sort of a device (forgot exactly what) that had this huge resistor in the circuit for the power industry where high voltages and currents are the norm. Antway the power company kept calling about problems with the unit. They found a mold had grown around the connections and since it had a lower resistance it was shorting the circuit. Solution: They cleaned it again and encased it in epoxy :-) And the comment on IDE cables is very pertinent, as I tend to pull on the cables to remove them, which I know is a bad habit, but getting needle nose pliers to grip the connectors is equally a pain. Too bad the old connector ejectors (which add maybe a few cents to the cost of the connector) are no longer in use, they DID server a valid purpose. I have a pair that I've never seen anywhere else with a very thin nose. I use these things all the time. They are perfect for grabbing stuff in those confined spaces. I'd have a panic attack if I ever lost them. -- Linux Help: http://rsgibson.com/linux.htm Email - Replace borg with net |
#9
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Computer freezes upon moving it
schreef in bericht
ups.com... My computer often sort of freezes when I'm moving it (even with just a few millimeters motion, e.g. when I'm vacuuming around it). The symptoms are similar to when a process takes up 100 % of CPU: very slow responses to my commands - sometimes even a few minutes (the mouse can be moved around normally, though, and pressing NumLock, ScrollLock, CapsLock on the keyboard reacts immediately); also, some processes or applications cannot be shutdown, and you cant' really start another application - you get a dialog box and a logged event: Event Type: Information Event Source: Application Popup Event Category: None Event ID: 26 Description: Application popup: xxxxx.exe - Application Error : The application failed to initialize properly (0xc0000142). Click on OK to terminate the application. I've done some extensive RAM testing, but both sticks seem to be all right. The mainboard is Abit IS7-V2, running Windows 2000 Professional. CPU is Intel Celeron D320 2.4 GHz. What could be the cause for this and how to remedy the situation (apart from leaving the box intact while on)? Cards and/or cables making bad contact (interruptions) while moving the case might disturb certain software from running properly. -- |\ /| | \/ |@rk \../ \/os |
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