| legg <legg@nospam.magma.ca>: Aug 14 07:55PM -0400 On Sat, 14 Aug 2021 10:48:46 -0400, Ralph Mowery >computers off ebay over the last 10 years. All but one is still working >fine. Some were bought just to get a slightly faster computer with Win >10 on them because Turbo Tax quit working on other systems. Motherboard alone sells and ships more economically. You don't even need the processor, as the old one will fit. If you buy the whole PC, it means scrapping your old one. I've bought and replaced a few motherboards without incident. RL |
| Ralph Mowery <rmowery42@charter.net>: Aug 14 11:17PM -0400 In article <nnlghgt3pn8rr0l5nmc1o6u3tp7j60p9nt@4ax.com>, legg@nospam.magma.ca says... > If you buy the whole PC, it means scrapping your old one. > I've bought and replaced a few motherboards without incident. I agree with that except it is often very difficult to find just an old motherboard. |
| Jeff Liebermann <jeffl@cruzio.com>: Aug 15 09:10AM -0700 >If you buy the whole PC, it means scrapping your old one. >I've bought and replaced a few motherboards without incident. >RL I prefer to sell the customer an upgraded machine, but have replaced motherboards with those found on eBay with good success. It's especially handy for odd situations like this HP Elite 800 mini-tower with a BIOS problem. <https://photos.app.goo.gl/UrXVFyLVvnncBMrq9> It's the monster case on the far right. The machine worked (after some minor repairs). However, the previous repairman decided to update the BIOS to the latest greatest. That turned out to be a mistake because the updated HP BIOS created all kinds of weird problems and could not be downgraded to the previous version due to alleged "security reasons". I agreed to look at the problem but was unable to make any more progress than the previous repair attempts. I was ready to scrap the machine for useful parts, when I though that perhaps a replacement motherboard might fix the problem. I found one on eBay with an older BIOS for about $35. All the BIOS related problems disappeared when the old motherboard was replaced. Windoze 10 wasn't happy and wanted a new activation code, but that was solved by my passing a typing test provided by Microsoft. <https://support.microsoft.com/en-us/windows/reactivating-windows-10-after-a-hardware-change-2c0e962a-f04c-145b-6ead-fb3fc72b6665> Unfortunately, the original owner found a better, faster, smaller, and more capable replacement machine and does not want the HP Elite 800 monster case back. So, I'm stuck with it. I'll probably donate it to a local impoverished student or senior. One more example. One of my customers has Dell GX620 he wanted fixed. I didn't have time and suspected that something on the motherboard was cooked (because the case fan had stopped). So, I ordered a replacement motherboard for $40: <https://www.ebay.com/itm/143971853748> It took me about a hour to replace (mostly cleaning) the motherboard, which worked just fine and didn't cost much to repair. -- Jeff Liebermann jeffl@cruzio.com PO Box 272 http://www.LearnByDestroying.com Ben Lomond CA 95005-0272 Skype: JeffLiebermann AE6KS 831-336-2558 |
| Ralph Mowery <rmowery42@charter.net>: Aug 15 12:36PM -0400 In article <jfdihg1ao7nhhmhb3l3u8qm1nf4p01ghp1@4ax.com>, jeffl@cruzio.com says... > <https://www.ebay.com/itm/143971853748> > It took me about a hour to replace (mostly cleaning) the motherboard, > which worked just fine and didn't cost much to repair. So you had to get your $ 40 back for the mother board and charge the customer arund $ 100 to replace it. He could probably get a refurbished one off ebay for the same price. I guess he would have to reload everything off his hard drive so maybe for him the price is worth it to just get another motherboard. |
| Ilya Kraskov <Ilyanospam123Kraskov123@gomail.com.ua>: Aug 14 08:40PM +0300 Do we move through 4D spacetime at the speed of light or do we all move at the speed of light times the square root of minus one? This article says we move through the temporal component of 4D spacetime at the speed of light times the square root of minus one (aka c times i). <https://math.ucr.edu/home/baez/physics/Relativity/GR/gravity.html> However, all these say we move through 4D spacetime at the speed of light. <https://medium.com/predict/we-all-travel-through-spacetime-at-the-speed-of-light-d60cb389dfc2> <http://backreaction.blogspot.com/2020/08/do-we-really-travel-through-time-with.html> <https://youtu.be/k73psdcmzEY> <https://youtu.be/au0QJYISe4c> <https://youtu.be/xYEcs9fOZy4> <https://youtu.be/msVuCEs8Ydo> <https://www.quora.com/What-speed-do-we-travel-through-spacetime> <https://www.quora.com/Does-everything-travel-at-the-speed-of-light-in-spacetime> etc Notice there is no mention of the square root of minus one in those above. Do we move through the temporal component of 4d spacetime at the speed of light or do we move at the speed of light times the square root of -1? -- Doveryay, no proveryay. |
| bruce bowser <bruce2bowser@gmail.com>: Aug 14 09:58AM -0700 On Friday, August 13, 2021 at 12:07:09 PM UTC-4, Michael Trew wrote in rec.food.cooking: > 3/4 ton of scrap steel that filled my truck. Always a treat when they > haul an entire central A/C condenser or evaporator with the > copper/aluminum core to the curb. Old electronics from the 1980s does good too, sometimes. Like if someone throws out a Trash 80 or a Commodore 64. People will buy that stuff from you. |
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