Cheers Muddy, this is a great post.
I’ve not had time in weeks to properly play with my rig, so it’s nice to see you have put some great time into it, and I’m glad my thread helped you at some point (in links)
Would you mind sharing your cgminer / sgminer settings? Threads etc also.
I still need to update to the latest BAMT with sgminer and give the multi core passing function a real try. 2 cores for 280x and 1 core for my 2x 7950s.
Android here please ;). Looks like great work :)
[quote name=“vex” post=“54225” timestamp=“1390471406”]
[quote author=prensel link=topic=7107.msg54168#msg54168 date=1390460273]
There’s a list/spreadsheet where all modified bioses are listed.
[/quote]
the thread is lengthy… can you post a link to that sheet, if you know what page it is in…
[/quote]
Yes please, I’ve been through 20+ pages and yet to find it.
Very interesting thread! Thanks for linking.
My 280x is stuck at 550Kh/s, I’m hoping this will fix it. The damn thread is 63 pages long! I’m having a hard time finding if he has posted the Sapphire 280x Toxic bios yet or not.
I’ll give this a try tomorrow!
Cheers guys, appreciate that! +1
Hey guys,
I’ve bought a new laptop, and I intend to give my old laptop to my wife. I’ll be removing my old HHD (I never like to format, just incase)
Obviously I need my wallet.dat file… I backup often. But do I need anything else?
On my new PC I have downloaded an installed the feathercoin client, it has downloaded the block chain.
Whats the best / correct way to move my wallet?
Move the wallet.dat file over? Hope it shows up? Or move over more files? .
OR
Just sent my coins to my new wallet address on my new pc? lol. … and remember to update my payment address everywhere.
Cheers guys.
Your 5970’s will work best with a single cpu thread, and the 290x with a dual core gpu thread. I’ve not managed to mix my single core and dual core cards, only running all on single or all on dual.
Had any luck with that?
Looks like we need some help here with the language barrier.
As to bulk orders, maybe it’s best if we can get a few going? One for the U.S, one for UK / Europe, Australia etc? Get 5 or 10 each?
I know no one wants to miss out on this, and we will unless we can get in fast.
I would also like to order some! Looks like we need an order page!
I want in on the first batch! Plllleeeassee!
I feel your pain the the electricity cost. If on a tariff here, starts at just $0.15, but I’m way into the $0.35 tariff.
I’m really not sure about mixing the gpu threads, I read somewhere that it only takes one input. I’m really hoping that isn’t the same.
I got it to bomb out also on all my cards when the thread count was too high, but then I reduced it and all three cards were running 2 threads each. But can’t get a mix of the gpu threads yet.
I need a good time on the tuning, real work getting in the way, I have tons of videos to edit…
What are your current settings for your 280 toxic if you don’t mind? I’m just using my 7950 congif right now, as have been just trying to get the two threads working before I tweak much else.
After playing with it for some time, I’m now 100% sure that you can’t mix threads in one cgiminer instance.
I can get two threads working on all three cards at once, (with lower thread count to stop it crashing), or 1 thread on all cards, but not a mix. if I do “2,1,1”, it just does one for all :/.
I’ve read this in a few places over the last week or so. I’m pretty sure I just confirmed it.
The only way I can I can do it is:
Run one cgminer for the two thread 280…by disabling the other two cards?
Ran a second cgminer for the single threaded 7950’s by disabling the 280x in that instance?
Now just to work out how to do that in BAMT / BAMT SMOS.
I’m thinking the -d flag, but I’m having a hard time finding any info.
no luck again :/
Using “gpu-threads” : “2,1,1”, and also trying “gpu-thread” : “2,1,1”, No luck. cgminer under gpu managment shows just three threads, one for each card :( 0,1,2
Muddy,
I’ve yet to really play with any settingd due to no time right now, and not tried his recommended yet.
I’m getting about 620Kh/s right now but im sure I can push further. (from the 280x)
My three cards are pulling about 780W-795W, at the wall on my 750W PSU (rather at 80% efficiency) so I’m guessing it about to pull about 900W at the wall. When I was running with my two 7950’s alone it was about 650W (if I remember correctly) so thats about 140-150W for the 280x…if the 650W was correct. Before I undervolted my cards, they were pulling 950W - 1K on my 750W PSU lol. I’d say I’m saving at least 50W per card now I’m undervolting.
Thanks for the cgminer.conf info, I’ve already tried this with no luck :/… from checking screen -r on the cgminer, it only shows one thread per card.
Edit: ! I just noticed my config file says, “gpu-thread”…where as you wrote “gpu-threadS”… I’m hoping it will be that simple! lol
[quote name=“kojima18” post=“53046” timestamp=“1389997116”]
[url=http://www.cryptobadger.com/2013/10/undervolting-in-linux-via-modified-bios/]http://www.cryptobadger.com/2013/10/undervolting-in-linux-via-modified-bios/[/url]
Follow the step and flash your own bios that you rip, its much safer and efficient I believe.
For the 7950 im undervolting to 1.087 and getting 630 kh per card at 68 degree with an external fan.
[/quote]
Yeah that’s exactly what I did and said. But good guide!
Hey Muddy, I’m glad I can help you out in return for your help :).
I got my voltage down on the 280 toxic, runs so much cooler and quieter now. I manually modified the BIOS, and set it at 1.1V. Wayyy better than the 1.256V…I can set it lower, but haven’t had time to play yet.
I followed this guide. [url=http://rumorscity.com/2014/01/03/litecoin-mining-sapphire-radeon-r9-280x-sweet-spot-for-740khashsec/]http://rumorscity.com/2014/01/03/litecoin-mining-sapphire-radeon-r9-280x-sweet-spot-for-740khashsec/[/url]
I saved my firmware (as backup), then flashed the BIOS linked on the page. I then loaded up the BIOS on my PC using VBE7 to change the voltage from 1081mV to 1010mV.
It’s easier than it sounds! And gives you exact control. I unpluged my other GFX cards when I was flashing, and did one by one, JUST incase I flashed the wrong one lol.
I’ve yet to have time to play with cgminer settings to get the 280 working with two cpu threads, and keeping the single thread on my other two 7950, I’m assuming I need to run two cgminer instances, and disable one card in one, and the other two cards in the other.
Many congrats and welcome fellow miner! If I had a mining hat, It hit it against yours haha.
I have a three card setup. I know how you feel when it’s new, you just HAVE to get it online!
I finally bit the bullet and used custom bios. Best thing I’ve done yet.
Saving about 200W on my cards now.
Read about it in my thread here: [url=http://forum.feathercoin.com/index.php/topic,6938.0.html]http://forum.feathercoin.com/index.php/topic,6938.0.html[/url]
It’s super easy, make a bootable dos USB stick, throw ATI flash on there with the new bios. You can even download your bios from your cards, and edit the exact voltages you want via the app on your PC, save, and flash to the card. Give me a shout if you need any help with it.
[quote name=“Undone” post=“52445” timestamp=“1389809435”]
[quote author=mattmct link=topic=6915.msg52443#msg52443 date=1389808538]
I have the same card. But haven’t been able to get it above 600-650kh, in BAMT, I think it’s because I’m using it with 2x 7950 which uses 1 thread rather than two.
[/quote]
This could be a really dumb long shot, but have you tried tying each 280x to its own worker in your pool?
[/quote]
Cheers for the feedback, much appreciated. +1 rep
I finally manged to under volt my 7950’s via BIOS, I’m planning on doing the same to my 280x toxic later today using this post: [url=http://rumorscity.com/2014/01/03/litecoin-mining-sapphire-radeon-r9-280x-sweet-spot-for-740khashsec/]http://rumorscity.com/2014/01/03/litecoin-mining-sapphire-radeon-r9-280x-sweet-spot-for-740khashsec/[/url]
Getting the two threads working right on the 280x will be my second task. I’ve not thought about using a different pool worker. I feel I might need to run another instance of cgminer. Some how disable one card in one instance, and then in the second instance disable the other two cards, to run them separate?
I was using linux BAMP, but recently swapped to SMOS, essentially a modded BAMT.