Probably, the difficulty is quite high indeed.

This problem has never occured when i am gaming. A few days ago i launched minecraft, but paused it via Escape key and even alt-tabbed from the game to my browser.
After that i used the vacuum cleaner and kinda hit the case a bit a few times while cleaning around the PC...next thing i notice the problem had occurred. Makes me wonder if it's shorting somewhere.

Wait what? What in the world is BIP?

I've tried it. It says it has 8 cores, it had only 3...no really, just 3 cores. The Cluster Compute Quadruple Extra Large however has 8 real physical cores, not limited, however it's priced at 1.60 per hour.

You seem to have misunderstood the thread. It's about Amazon EC2 computing. I.e rented computers, not a personal computer.

Do you know what that is exactly? It's load balancing in effect. You for just a few seconds get a bump of that 1.30 or so speed, then get reduced to below 0.05

The tenebrix miner is the EXACT copy of cpu-miner...tenebrix,fairbrix,litecoin ALL use SCRYPT algo.

Also, with that exact same miner, i get over 3KH/s per core on my 64bit Virtual machine on my own computer.

Thats why i do -march=native -mtune=native which enables them all, -msse2 is just a habit. In any case, ALL i got and i mean from ALL the optimization i tried, just 0.50kh/s

And i also use a 64bit linux, which is supposed to be faster than 32bit OS

Not to mention that there is extreme load balancing in the micro instance. You mine at full speed for a few seconds and then you get reduced to 0.02 or less KH/s

I am writing because i've already tried them.

Micro instance has 1 core, or when i compiled, just 0.50kh/s. And i doubt that i can launch 30 or more FREE instances.

I've also tried the CLuster Computer Quadruple extra large which is an 8 core, 16 thread Intel Xeon which does 2.77(MAX) kh/s per core

So no, you do not get 1.5kh/s just 0.50

And if anyone wants, here is something i use to automatically download all dependencies plus the miner, download it, configure it, and compile it


That is what i do when i first SSH to the new EC2 instance. It's fast, and you barely waste time.

Nope, amd DID make AGP cards of the 4k series. Namely 4650 and few more i think.

Constantly actually. Since day one of bitcoin mining, afterburner is open... Actually i also tried to think out of the box and thought it could be afterburner polling too often or something, but its not like Afterburner was open the times when the problem occured when i was idling with both cards...or the time when my 5870 didnt start for a whole hour.

This is the problem i have.

I have a 5850 and a 5870. The 5870 is like 3-3.5 months old.

The problem is that sometimes, randomly either card blacks out. What does that mean? My monitor goes in standby, and the GPU fan speeds up to 100%.

Here's how it all happened. Before i bought the 5870 i had just the 5850 and was mining with it. I back then overclocked my 5850 to 950mhz core and 475 mem. It ran for about 2 weeks before displaying this problem. The max i bumped the voltage on the 5850 was 1.2mV and then i reverted to stock clocks when the problem even appeared as i just rebooted. Nevertheless the card continued to work. I bought a 5870 and mined with it for...2.5-3 months again overclocked to 950 mhz and 300 mem when it ALSO started having the exact same problem. But on the 5870 i did not increase the voltage as much as the 5850.

The 5850 is fine, it hasnt "crashed" in a long long time, but the 5870 on the other hand does. Last time it crashed i thought it was dead, as i removed it from my motherboard and replugged it again, the fan was still in its speedup phase...i removed the card thinking it was dead. But after an hour of cooling off it suddently worked again.

Here are links to people with similar problems, some even with the same as mine

http://forums.amd.com/game/messageview.cfm?catid=260&threadid=135188
http://forums.amd.com/game/messageview.cfm?catid=260&threadid=101656
https://bitcointalk.org/index.php?topic=31718.msg400581#msg400581

ATM my 5870 and 5850 are not overclocked.

Tbh, is it possible i went and screwed two cards? Or could it be my PSU? My psu is a Chieftec 600w, outputs 576w on the 12v+ rails(i have 4). And just so you know, while two cards and a phenom do cut it close with this PSU, the problem occured on my 5850 when i didn't have a 5870. So it could be the PSU, or i've destroyed two cards.

P.S
When this blackout occurs, rebooting doesnt help. I have to actually shutdown the computer and then start it again so that the card can work again.

Does poolserverj have rollntime support?

OCN user?

A block is not USING a difficulty, it's at SOME difficulty regardless if it wants to or not.

Whatever...BlueMatt is a developer working on Bitcoin and this can be verified on freenode @ #bitcoin-dev

I agree with Kano with all my 3 hands up

No i downloaded an archive and waited only 2-3 minutes.

http://bitcoin.bluematt.me/bitcoin-nightly/blockchain-nightly/

Ok, then why is it an archive in an archive? When i uncompress the lzma archive i get a tar archive which also needs to be untarred.

It would be awesome if ufasoft would just use .tar archive instead of double compression.

Winrar also failed to recognize this lzma format.