Id be willing to bet 1 coin you can SSH in to the machine fine even with 2 cards. When you do, try running sudo aticonfig --initial --adapter=all -f then reboot. If that doesnt fix it, try booting with nomodeset. I wrote a howto on this a long time ago, but most if it is still accurate today: http://ubuntuforums.org/showthread.php?t=1613132 |
|
|
|
I dont think thats gonna fly with public opinion, even in a militaristic society as the US. "Oh no, they defaced my facebook page, lets launch a nuclear attack(*)"(*) attacking active nuclear installations, is a nuclear attack IMO. Anyway, I dont think they will do anything to Iran before having toppled Assad in Syria. Thats clearly where the propaganda is focusing on now. |
|
|
|
I doubt its the PSU. That 700W may or may not be adequate, but it should be enough to boot the machine. If it would fail under load, id start pointing fingers at the PSU, but doing nothing I dont see 2 cards plus the rest of the system pulling more than ~200W. More so if its this PSU: http://www.hardwareheaven.com/reviews/929/pg1/xigmatek-nrp-pc702-700w-psu-review-introduction.html60A on the 12V rails is pretty good. Are you using the opensource drivers at this point, or the ATI drivers? If you can, see if you can SSH in to the machine. I think this is just a xorg/driver problem |
|
|
|
Do the effects of electromigration progress over time or is it just an instant thing where the card simply gives up after running great immediately before the total cut in the interconnectors? It can be either. Electromigration may cause a slow decline of maximum stable OC, particularly if the affected logic thats being degraded is in the critical path, or it may cause a sudden catastrophic failure that appears to come out of the blue |
|
|
|
Why don't you just steal it out of their wallets?
Or ask them to invest in a GPU; assuming your electricity is cheap, split the profits. Good luck convincing them its not for gaming though  |
|
|
|
Just to confirm you can donate whatever Im owned for this to p2pool, but I would like to see a transaction id.
When payments are sent, it will be done. I'm waiting to do all payments at once, and I will wait until we are all sure that everything is accounted for and right. Sorry, I didnt realize you were paying them, I thought it was the scammer. Still a good idea to post them though. |
|
|
|
|
Just to confirm you can donate whatever Im owned for this to p2pool, but I would like to see a transaction id.
|
|
|
|
Neither real, float nor double, simply int or or so.  One could say imaginary, but Id go with complex |
|
|
|
You can donate my share to P2Pool miners though.
Same here |
|
|
|
Why don't you use the returned arrays while fetching them from Mysql? TBH, because my code is already working with arrays that are initialized on startup, so hardcoded. Now I just want to fetch the data from a db without rewriting everything. Looks like I may have to. |
|
|
|
Im contemplating sending you 5BTC for this extremely useful post |
|
|
|
Im struggling with PHP to get data from a mysql db and put it in to PHP arrays in a way thats actually easy to use. Assume I have a table "miners'" with the following fields: ip (also primary key) name status location ... I want to fetch this from mysql, put in an array and then loop through all miners, in this example just to display the ip and names. The best Ive come up with is this: $query = "SELECT * FROM miners";
$result = mysql_query($query) or die(mysql_error());
$i=0;
while ($r = mysql_fetch_assoc($result)) {
$miner[$i]=$r;
$i++;
}
foreach ($miner as $i=>$d) {
echo "miner : ". $d["ip"] ." ". $d["name"] .$d["whateverotherfield"];
}
I does work, but its such a kludge. Im sure there is a better way, but I just dont see it. Any help appreciated. |
|
|
|
If you have an extra wireless router, install DD-WRT and set it up as a wireless bridge with the rig connected by Ethernet. That will be a lot more stable than using a wireless adapter.
This. Would you run a server off a wireless link? A mining rig is a server. It is on 24/7 and when it goes down you lose money. Of course there is little reason to assume a DD-WRT modded wireless bridge is any more reliable than a wireless card. Its still wireless you see . |
|
|
|
|
So how does it impact performance? AFAIK, you need SDK 2.6 for radeon 7 cards, and with SDK 2.6, hashrate scales pretty good with mem speed (IOW, if you lower your mem speed, hashrates take a nosedive).
Am I wrong?
|
|
|
|
|
Yeah but he doesnt say how far.
Many cards cant be set any voltage but only to some predefined values. If his cards are not stable at 700 stock voltage he should state that and not post results for 700/1v.
|
|
|
|
|
Its not the clock, its the voltage. default voltage for most 5870s is 1.175v. 1v is a huge 18% undervolt.
Or are you saying 700 Mhz doesnt work 1.175v?
|
|
|
|
|
Are you sure you have the same kind of heatsink? If you strap fans to that heatsink without offset, you would get zero CFM... its almost airtight, its like gluing a case fan to a wall? Even with offset, you are only using ~30% of the surface of the cooler, if that, since you dont use the vertical fins and you get close to zero airflow over the heatpipes.
If you put them in the place where the original cooler was, I cant imagine a lot of airflow going through the heatsink either. Not without a shroud forcing the air that way, rather than going up and down with no resistance.
Oh well, if it works for you, so much the better. But I cant see how lol. I suspect you have a different heatsink where air can travel through freely, unlike this XFX one.
|
|
|
|
Hmm... can you point to some pics of the two different kinds you're talking about? The ones I've put case fans on seem to be the 'closed' type you are describing, and I've actually gotten better cooling with the case fan and no cowling. But perhaps I've not seen the closed type you're talking about. The two cards abracadabra posted are the type I'm talking about - I've replaced those and had good luck with that.
The fans I've replaced are flat blade type, basically just like a case fan. Are you talking about the turbine type that are shaped more like barrel, such as the reference 5970/6990 fans? If so, then yes, I agree, replacing those with case fans would not be a good idea.
Here is a pic of my XFX 5870 cooler:  Only the most right heatpipe is in an "open" section of the cooler  Just slapping a case fan on there without shroud isnt going to work IMO. Even with shroud it took me 3 fans stacked together blowing into where the original fan was, to keep temps acceptable: https://bitcointalk.org/index.php?topic=62325.0 |
|
|
|
When my 5850 (and 5870) fans fail, I just pop off the cowling, strap an 80mm casefan to the HSF unit with zip ties and fire it up. Keeps the cards cooler than stock fan, looks ghetto as hell, but works great and its' cheap/easy to replace if/when the fan fails again.
Not sure thats a good idea with all cards. Some have a "closed heatsink". If you look at the card as you normally would when its laying flat on a table, underneath the shroud you basically see a solid metal sheet with just a hole for the fan. The fan forces the air through the vents that you cant see from the top. Blowing on to that sheet is probably rather pointless. non reference XFX cards are like that. I had to put 3 case fans in series to keep a dead fan 5870 from melting. If Im not mistaken 5850 and 5870 reference coolers, while different are also mostly closed on the top. Other cards have an "open heatsink" where the plastic shroud is actually needed to force the air through the vents of the HSF. In that case Im sure strapping on some case fans would work great and probably better than stock in an open rig. |
|
|
|
. But when load is re-applied to the card, AMDOverdriveCtrl immediately shows the clock returned to 900Mhz, but cgminer's hash rate will only slowly climb back to original hashrate in about 10 minutes
I take it you arent using auto-gpu with a clockspeed range then. If you are, it doesnt start at 900, it will start at whatever you configured as lowest in the range (say 700-1000 in my case) and then slowly increase back to 1GHz. Same behavior as when it overheats. So its not the average hashrate Im talking about, its the clock. |
|
|
|
|
Show Posts
