KC has asked me to post this on his behalf as he has yet to be white-listed. I haven't had a chance to investigate or even speculate if the same issue is affecting me, but perhaps this info will be useful to others in the meantime. Hi Rouge Star,
I'm new to the forum and still in the newbies sandbox, so I can't post this, but wanted to share with you in hopes it helps. If it does, please repost to the forum as it may be a while before I can get the information up there myself. I'd spent some time looking to see if this had already been covered but found nothing related.
In a nutshell, I'd spent 4 days trying to figure out why my stale /orphan and rejected rates were abnormally high and had been troubleshooting as a network issue. My ISP forces me to do some extra work to set up NAT, so I'd double checked my NAT and FW rules verify that port 9333 was forwarding correctly and was sure it was.
From the machine I run P2Pool on, I fired up wireshark and filtered on tcp 9333 to make sure it was working asynchronously when I noticed a problem with numerous packets returning invalid IP and TCP checksums.
You may already know, most new NIC's by default will perform TCP, IP and UDP checksum calculations on board and I've run into issues with this especially with NAT where a firewall will drop the packet due to the invalid checksum. I disabled all of the "offload checksum" features on the NIC, and have had a huge improvement overnight with only 1 Stale, 2 orphans and <1% rejected in the last 12 hours.
Best of luck,
-KC
not because of any firewall, but I do this on all my systems as well (w/ netsh in windows and ethtool in linux)... unless I'm missing something here, the offloading is only beneficial if your CPU is overworked... otherwise it's faster to just not do any offloading (don't need to offload if your CPU is at 99% idle?). I disable RSS, chimney, and netdma in Windows as well... Leave DCA on unless I'm having CPU issues (then it goes off and some of the others come on, like NetDMA and offloading) |
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Thanks for the offer... I keep spare fans around though.
Have you tried starting the 5970 at very low clocks (600-650ish) and waiting for it to heat up? I've got 3 cards that do this (they need reflowed). Once they are up to temperature though (60c+), they run flawlessly at higher clocks.
this is kidna whats happening to one of my 5970, but one of the cores wont accept any load at all (mining) unless the adjacent core heats it up to about 65-70C, then I can start it at normal clock speeds. It's a crappy card anyways though. Master maxes out at 740Mhz @ 1v, slave maxes at 755 @ 1v. Most of my other 5970 get about 770-800ish. Of the 7 5970's I've gone through (still have 4), only 2 cores couldn't hit 900Mhz @ 1.125... 740 & 755 are really bad. =p I have one I run at 835-825 @ 1.05v, one at 800 (weak core #1)-845 @ 1.05v, another at 820-820 @ 1.05v, and the last at 820-810 (weak core #2) @ 1.05v. In general, it's about +15Mhz per voltage increase (1.05 to 1.063 to 1.075 to 1.0875 to 1.1), though the 800 one caps out at somewhere between 866-875 (it crashed at 875 twice, haven't bothered going above 865 since then) and the 810 is similar, around 870-880. The best one can do 950 (140 mem) @ (**ed: 1.150, not 1.250) (unsure past that, the VRMs were around 100 and I wasn't very keen on going any higher on the voltage anyway... the card never went above 70oC though, since ambient was around 25oF..). I don't mess with them much anymore, pretty much gave up on the hassle of the testing, so they run at something below 1.05 when it's going to be > 70o outside, 1.05 @ <70o, 1.063 @ <60o, 1.075 @ <50o, etc. I've had a few issues.... (like when the forecast is 55 and it's 68 or something) They could use a nice cleaning but I'll just wait another month or two for that, I guess. |
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lol @ $30... yeah, i have been surprised how the 5830's are STILL holding up. $10 less than 3 months ago? $20 less than 2 years ago? too bad I only have 2 w/ working fans still i guess i'll also add that the cool thing with 5830's is that i can still mine them fanless, one of them is even stable at 800/160 @ 0.95v (the average is around 760-770) |
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I have a shroud, but not the fans. Ziptied some junk on there as well.
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Guess I'll probably end up having to sell 'em with some 120mm ziptied on. In terms of what I perceive the increase in value to be from having the "original" fan, I really wouldn't want to pay more than $10 or so per fan, anyway (that's placing a $5 value on the 10 minutes or w/e it'd take to get it done).
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I assume the regular non-xtreme Sapphire's use the exact same fan? anyway, I need 4 of these to get them ready to resell (well, make that 5, in case another breaks down in the next month or so).. Most of my 5830's I've been running fanless @ 0.95v for a while now..
anyone have a batch they'd want to sell, or could direct me to some guy on ebay?
thanks
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OK, so you want more technical details. That doesn't sound like the "easy explanation" the OP was asking for . . .
 . . . with all the sha256, difficulty and mining computers operations . . . . . . turning technical details into something a third grader could understand)..essentially taking the Wiki version, adding more detail . . . I'm getting tired of explaining cryptography to people  . . . but from the technical point of view . . . So he wants a detailed explanation of a highly technical subject, but in baby language? and therein lies the crux of the problem |
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does bitcoinstore rip people off as much as giftsforcoins
or more?
I won't feed the troll. *roll* I'll take this as a 'yes, it does rip people off'. |
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I don't see how your video answers the question presented by the OP? you show amazing cognizance |
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i have started using my new HyperX
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does bitcoinstore rip people off as much as giftsforcoins
or more?
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In linux you can use a tool called "trickle" to limit your bandwidth like this: That will limit its upload to 50kb/s So useful even now, half year later, I dug this from google. Thanks! Is there anything equivalent to trickle for cpu usage? setting affinity? |
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Only a broke student in a state with legal weed would think anyone could possibly take this request seriously.
essentially, I agree though i don't understand the nonsensical apprehension towards bank loans, it seems like the person making the post would be willing to go through the same vetting process that a bank would conduct when making a loan so what's the difference? am i gonna get beat up and have my bitcoins stolen from my person? oh wait |
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I don't trust banks.
Why? They make you pay the money back?  LOL. Not sure if you're actually expecting to get this, but I'll assume you are. Nobody here is going to spend over 300k to someone who has 90 posts, little-to-no reputation, and nothing to show for it. The person that posted about why you don't trust the banks was right: You don't intend to pay this loan back, so why would you go to a bank? If you're serious about this loan, go to a bank. Otherwise, go away. I'm here because I want more of a "money-man" partner. I don't have the $$ to get this thing rolling, but I have a great plan and I don't want a bank looking into me and my personal life (as they would for a loan such as this). Anyone with the money that is willing to take a small risk, could come out with big future rewards. Like I said, I have every intention of paying it back, and don't necessarily need the loan to be in BTC, I would gladly accept it all in USD. This business is going to be almost completely legit and I plan to pay all taxes as required by law. sure, with a viable business plan and a contract in writing no problem converting USD to bitcoins |
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more bitcoin than you can shake a stick at
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If I were a 'money-grubbing scumbag' (aren't we all  ) No if you die in outer space, mr. t cannot pity you sound does not travel in a vacuum |
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what if difficulty goes up 30x and it isn't caused by ASICs?
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