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Solve : LAN Port Zapped? |
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Answer» Recently a thunderstorm came tromping through our neighborhood, and a bolt of lightning struck the yard. This has happened frequently since we live on top of a hill so we kinda stick out like a sore thumb. Anyway, we didn't notice any immediate effects, the lights stayed on, nothing EXPLODED. I had unplugged the power cord from my PSU, and all the TVs in the house just for safe keeping before the strike. Sure enough it came and was in the end glad we had done so. It should still run under XP 64bit.... Web browsers still don't pick the internet signal up on 64. It recognizes the hardware in because it brings up one of those 'New Hardware Found' windows. the instructions tell you to have it search the CD given for drivers, and it only sees 32 drivers in it. Was looking at a NIC by Rosewill, they have drivers on their site for XP64 and 32. I know the brand is sorta cheap, but the reviews look nice and it sounds like it will do its job. Only $14 too. I can return the one I have now and get a replacement for cheaper that will work with both 32/64. Thanks for the help guys, will get back to you on how everything goes.I'd say go for it.../ Quote from: spuzz on June 13, 2009, 12:31:35 PM Thanks for the help guys, will get back to you on how everything goes.Fix the reason for that damage. It was all avoidable. From your damage list, it appears the incoming path was via a computer - outgoing via the modem to earth ground. Surge damage means a surge was permitted inside the building to hunt for earth, destructively, via appliances. Why does your telco, with computers connected directly to overhead wires all over town, suffer maybe 100 surges with each thunderstorm - and no damage. Protection from direct lightning strikes is that routine and has been that well understood for 100 years. You still don't have a solution installed. Principles and solutions were posted in the Microsoft Windows board under “Power surges and lightning”. An NIC is rated to withstand about 2000 volts. All appliances contain internal protection. You simply let a surge so powerful into the building as to easily blow through that 2000 volts protection. No reason for lightning to seek earth destructively inside a building. Read that above discussion. it's a 10$ NIC... Additionally very little of your post in the other thread is even relevant, since this is a network cable we're talking about, not the AC input, which you so facetiously assume. Additionally it started making very little sense- and repeating itself. but seriously- Quote The informed consumer buys a solution well proven for over 100 years. That is required by the US Air Force. What the *censored* is this? I better consult with the air-force, make sure I'm buying a solution that's been proven in the last 100 years. *censored* IT, though! network topography isn't that old. Oh well. Quote Fix the reason for that damage. It was all avoidable. From your damage list, it appears the incoming path was via a computer - outgoing via the modem to earth ground. Surge damage means a surge was permitted inside the building to hunt for earth, destructively, via appliances. No, here, let me tell you what happened. the power came in through the network connection, not out of it. the power supply, as you might have read (had you been paying attention) was not plugged in. In came in through the network connection and dissipated through the capacitively grounded case. Quote That has been routine so that munitions dumps suffer direct lightning strikes without explosions. Yes- it's all because they plugged their blender into a grounded outlet that the explosives are immune to direct lightning strikes. *censored* I'm enlightened now. Quote Spend less money for the well proven and superior solution. Then upgrade what provides protection: earth ground. A protector is only as effective as its earth ground. It's too bad we have no choice, and have had grounded electrical systems for almost 100 years standard. Yeah, right around a hundred years ago, when Tesla was experimenting with alternating current. Edison was using direct current. Leading scientists of the day pronounced alternating current as the work of the Devil, because they didn't understand it. (This FORCED Tesla into a career in heavy metal.) (I wonder if the heavy metal was grounded? Quote It was all avoidable. Really?? Sure, you should have equipment to try to minimize the chance of damage, but lightning/electricity will sometimes have the best protection for lunch. No protection is absolutey above damage. CURSES! OK, it wasn't around 100 years, for rounded plugs. but we've had them for a while. Quote from: BC_Programmer on June 13, 2009, 10:36:54 PM it's a 10$ NIC...And an $800 TV and a $1000 computer and a furnace that must remain working during the winter .... With technical knowledge, one understands simple concepts such as ‘canary in a coalmine’. The NIC was damaged because a surge was earthed inside the building. Surge found a path to earth via the NIC and modem - completely unacceptable and routinely avoidable. The few who actually learned this stuff knew what ham radio operators discovered in the early 20th Century. ANTENNA would be disconnected. Its lead placed inside a mason jar. And damage still occurred. Disconnecting is not that effective. Damage stopped when the antenna lead was finally earthed. Well, maybe the surge entered on a communication line. The building has even worse wiring problems. Two facts remain. Disconnecting alone is not reliable protection – as the OP’s post confirms. And he still has what must never exist - surge energy permitted inside the building. That $20 NIC is simply a warning. Fix it now or expect future loss of expensive electronics maybe next in a central air conditioner. Whereas the conclusion was repeated often, reasons for that conclusion (which are always more important) were different, relevant, and explained a solution. Not grasping the reasons why explains why canaries and coalmines also so confused you. OP had damage that is easily averted – for a long list of reasons why, with solutions, in that other post. |
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