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Macminer was restarted suddenly11/13/2023 The second issue was exactly what you are describing, a completely random reboot out of nowhere which I only killed on a hunch that the oldest piece of hardware in my machine was an 8 year old CD-writer that had migrated from an old machine. First one is that windows would appear to hang and then the machine would reboot and the main hard drive would not appear on the BIOS POST screen so that got replaced and got rid of that problem. I've had a similar problem with my machine of 5 years now and only managed to kill the random reboots about a year ago. The hardware could be 99% perfect but it's that 1% that gets you. The problem is that this can be tied to almost any piece of old hardware going into a slightly odd failure state. And the power supply is more than capable of running my system. So is there some software or hardware that can be used to test these sorts of errors? I did run memtest86 for about 8 hours without finding any issues. But I just don't know how to test an issue this random and want to figure out how to confirm which it is before I go replacing things. My guess would be Power Supply, Ram, or Motherboard. But due to the rareish and random nature of the crashes my normal strategy of just removing hardware until the problem stops isn't really practical. I strongly suspect it's a hardware problem. It's happened in both Vista and Windows7. It's been happening for as long as I've had this computer, almost two years. It just goes from running fine to the POST with no error messages or anything and doesn't seem to be due to heat or usage as it's happened a couple of times when the computer has booted just a few moments ago and is idling. If the bitcoins were stolen, how could the alleged thief unload them? Doesn't each one have a registry number (or something)? Might be a dumb question, but I just can't get my head wrapped around these things.Īssuming all of the rumors were accurate, here is the ELI5 version.My computer reboots, seemingly completely at random, about once every week to two weeks but has occasionally gone months. The way the bitcoin protocol works is that when a transaction happens, you broadcast it out to the network, then the miners 'confirm' it. Once it's confirmed by a certain number of miners, the transaction is considered complete. There is a way to generate a transaction id for each transaction to help you track them on the block chain.īut, there is a 'flaw' in the bitcoin protocol that allows anyone to modify a transaction by changing some meaningless extra bits which generates a new transaction id, but that doesn't actually change the actual transaction - the same wallets spend and receive the bitcoins. If you introduce this mutated transaction quick enough, your transaction might end up being the approved one, rather than the original one.Īll of this is not a fatal flaw in the network except that Mt Gox was using the transaction id only to track their bitcoin transfers, which was causing them to think that transactions which actually had gone through successfully had failed.Įven this wouldn't be that bad if they had people checking the failed transactions by hand so they could see if the money had actually gone through, but apparently they were either automatically retransferring the money or automatically crediting the account again with the bitcoins that they had already sent out after their transactions 'failed'.Įven this wouldn't have been that bad, because at worst it would have drained their 'hot wallet' which should have tipped them off that something was bad, but apparently their cold storage wasn't that cold, and they emptied out everything. Nobody has used graphics cards for mining in at least a year. I'm mining right now on my Mac mini's integrated GPU. I only do this to get a vague index of relative difficulty. I posted the stats in a previous BTC thread, but IIRC I started out generating. I haven't calculated lately, but a few weeks ago the estimated time to generate. 01BTC was over a year, assuming no increase in difficulty. Just off the top of my head, I'd expect the time has increased to several years, if not more than a decade. It might be worth noting, a few weeks ago there was an upgrade to MacMiner, and suddenly it is generating zero hashes. I contacted the developer, and this version turns off GPU mining by default, you have to re-enable it in the prefs. Posted by charlie don't surf at 4:57 AM on FebruSo yeah, obviously GPU mining is dead, nobody would actually do it as a practical enterprise. This is actually quite excellent for Bitcoin. The Bitcoin gods have spoken, and in so speaking that they opened their cavernous maws and swallowed the heretics whole.
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