280x Toxic Under-volt
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Hmm, I have the MSI R9 280X
I see a few different versions of the vBIOS, do I just get the most recent one? -
I just went with the stock BIOS that I downloaded from my card, made the changes to the voltage settings and then pressed the button before uploading the modified BIOS back to my card.
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[quote name=“Pancrisp” post=“58063” timestamp=“1391956473”]
Hmm, I have the MSI R9 280X
I see a few different versions of the vBIOS, do I just get the most recent one?
[/quote]I usually went with the most recent bios version… I found it weird how you would have the same versions released within minutes of each other, or maybe that’s when techpowerup uploaded it…
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[quote name=“Ignition75” post=“58010” timestamp=“1391906637”]
Undervolting is awesome.It took my 4 x Sapphire 280x’s from 1250w at the wall down to 1100w, no loss of speed and each card running 5-10 degrees cooler.
I wasn’t brave enough to go below 1.075v per card, I’ve hard of guys going lower but I was happy with that…
[/quote]brave enough? there’s nothing to damage, if you undervolt too much the cgminer will crash, you reboot the computer and raise the voltage a bit until you find the lowest stable voltage the card will work on.
i’m running my cards 1.03 to 1.08 (powercolors), 1.125 (sapphire dualx), Gigabyte is the best one with [email protected].
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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.
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Man I’m struggling with my Toxic… every .bat file I try it still gives me hardware errors… any guesses where they comming from? I tried almost everything… wich catalyst driver an AMD APP SDK driver? and wich SGminer are you using?
BTW
the cards run up to 800 Hash with this .bat:
-p x -I 13 -w 256 -g 2 --shaders 2048 --thread-concurrency 8192 --gpu-engine 1160 --gpu-memclock 1875
If you can undervolt it and make it run steady you got a solid 800hash per card.great info on undervolting though!
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[quote name=“mattmct” post=“58142” timestamp=“1391983463”]
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.
[/quote]No worries mate, I’ll dig my cgminer.conf of later tonight and post it for you
[quote author=Morderchai link=topic=7501.msg58226#msg58226 date=1392053938]
Man I’m struggling with my Toxic… every .bat file I try it still gives me hardware errors… any guesses where they comming from? I tried almost everything… wich catalyst driver an AMD APP SDK driver? and wich SGminer are you using?BTW
the cards run up to 800 Hash with this .bat:
-p x -I 13 -w 256 -g 2 --shaders 2048 --thread-concurrency 8192 --gpu-engine 1160 --gpu-memclock 1875
If you can undervolt it and make it run steady you got a solid 800hash per card.great info on undervolting though!
[/quote]
I started to get hardware errors if you aim too high! Try adding this and see what you get “–gpu-powertune 20” also I’m running under BAMT which may make a difference, I would that when I use windows with the same settings on higher hash rates, I start to get issues. Going to need a bit more information about your setup to help you sort it out, Mem CPU, PSU ect…I’ve caused myself another problem by undervolting now… I used to use the rig to heat the office whilst I was sat in it all day working, now it’s undervolted I have to turn the heating back on ::)
UM
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[quote name=“uncle_muddy” post=“58229” timestamp=“1392055904”]
[quote author=mattmct link=topic=7501.msg58142#msg58142 date=1391983463]
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.
[/quote]No worries mate, I’ll dig my cgminer.conf of later tonight and post it for you
[quote author=Morderchai link=topic=7501.msg58226#msg58226 date=1392053938]
Man I’m struggling with my Toxic… every .bat file I try it still gives me hardware errors… any guesses where they comming from? I tried almost everything… wich catalyst driver an AMD APP SDK driver? and wich SGminer are you using?BTW
the cards run up to 800 Hash with this .bat:
-p x -I 13 -w 256 -g 2 --shaders 2048 --thread-concurrency 8192 --gpu-engine 1160 --gpu-memclock 1875
If you can undervolt it and make it run steady you got a solid 800hash per card.great info on undervolting though!
[/quote]
I started to get hardware errors if you aim too high! Try adding this and see what you get “–gpu-powertune 20” also I’m running under BAMT which may make a difference, I would that when I use windows with the same settings on higher hash rates, I start to get issues. Going to need a bit more information about your setup to help you sort it out, Mem CPU, PSU ect…I’ve caused myself another problem by undervolting now… I used to use the rig to heat the office whilst I was sat in it all day working, now it’s undervolted I have to turn the heating back on ::)
UM
[/quote]I’ve recently noticed no performance difference between gpu powertune 10 and 20, just extra heat. So I changed all my rigs to gpu powertune 10 and got better temps for the same hashrate…
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Right so hopefully this week I should get a couple of delivery’s to start the build of another rig 8) this one is going to be very different thou, I’m not going to say to much here as this is not what this thread is about, but…
In doing so I will have another complete setup minus GPUs for now, that I can
a) test the card that started to give me problems
b) once a) is sorted, see how low I can really push my luck with undervolting :)So I will keep you updated on that.
If your wondering about temps, and fan speeds after the undervolting after the H/W issues I still have a card running 1.2v in my rig, I’ll sort it later in the week when I get time to but it (GPU0) used to be roughly the same as GPU2 the numbers now are
GPU0 Temp 71[sup]o[/sup] Fan 54%
GPU2 Temp 71[sup]o[/sup] Fan 45%I haven’t forgotten that someone was after a cgminer.conf dump, I just don’t have that level of access to this rig at the moment, it’s on my todo list
UM
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Woow! 800khash/sec on a 280X?!
Will have to check that out, bud! -
Wow, I really need to undervolt my cards.
It’s been hitting 35C to 40C in the afternoon.
My cards are recording temperatures of 84C even with GPU Fan set to 100% and a standing fan hitting them at full blast. -
[quote name=“Pancrisp” post=“58596” timestamp=“1392159208”]
Wow, I really need to undervolt my cards.
It’s been hitting 35C to 40C in the afternoon.
My cards are recording temperatures of 84C even with GPU Fan set to 100% and a standing fan hitting them at full blast.
[/quote]Sounds like the painful week I just had in Melbourne… I fried a PSU as well :-[ Just gave up in the heat…
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Undervolted my cards to 1.081 but hashrates at 730khash/sec :'(
Good temperatures though. 73C, looks promising.EDIT: Made a few changes. Now mining at steady 755khash/sec at 1075MHz core clock and 1500MHz memory clock. Same 1.081v
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[quote name=“Pancrisp” post=“58660” timestamp=“1392204138”]
Undervolted my cards to 1.081 but hashrates at 730khash/sec :'(
Good temperatures though. 73C, looks promising.EDIT: Made a few changes. Now mining at steady 755khash/sec at 1075MHz core clock and 1500MHz memory clock. Same 1.081v
[/quote]Well done Son… What card you getting 755 from?
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Anyone know of a windows program to regulate the voltage?
Starting to think my sapphire 280x toxic are voltage locked:(My asus matrix cards had no issue with the asus gpu tweak utility (windows).
But was limited how low i could set em. -
[quote name=“svennand” post=“58844” timestamp=“1392281548”]
Anyone know of a windows program to regulate the voltage?
Starting to think my sapphire 280x toxic are voltage locked:(My asus matrix cards had no issue with the asus gpu tweak utility (windows).
But was limited how low i could set em.
[/quote]VBE7 will adjust your voltages for you mate. Flash with atiwinflash…
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[quote name=“Ignition75” post=“58834” timestamp=“1392277451”]
[quote author=Pancrisp link=topic=7501.msg58660#msg58660 date=1392204138]
Undervolted my cards to 1.081 but hashrates at 730khash/sec :'(
Good temperatures though. 73C, looks promising.EDIT: Made a few changes. Now mining at steady 755khash/sec at 1075MHz core clock and 1500MHz memory clock. Same 1.081v
[/quote]Well done Son… What card you getting 755 from?
[/quote]Mining on MSI R9 280X GAMING cards.
Hovers around 730khash/sec when I’m actively browsing the net while mining. -
[quote name=“Ignition75” post=“58847” timestamp=“1392282610”]
[quote author=svennand link=topic=7501.msg58844#msg58844 date=1392281548]
Anyone know of a windows program to regulate the voltage?
Starting to think my sapphire 280x toxic are voltage locked:(My asus matrix cards had no issue with the asus gpu tweak utility (windows).
But was limited how low i could set em.
[/quote]VBE7 will adjust your voltages for you mate. Flash with atiwinflash…
[/quote]Damnit, have to flash em then i guess :)
Was hoping i didnt need to -
[quote name=“svennand” post=“58852” timestamp=“1392289419”]
[quote author=Ignition75 link=topic=7501.msg58847#msg58847 date=1392282610]
[quote author=svennand link=topic=7501.msg58844#msg58844 date=1392281548]
Anyone know of a windows program to regulate the voltage?
Starting to think my sapphire 280x toxic are voltage locked:(My asus matrix cards had no issue with the asus gpu tweak utility (windows).
But was limited how low i could set em.
[/quote]VBE7 will adjust your voltages for you mate. Flash with atiwinflash…
[/quote]Damnit, have to flash em then i guess :)
Was hoping i didnt need to
[/quote]Hehe yeah, it’s better that way, it feels more proper doesn’t it?
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[quote name=“Ignition75” post=“58853” timestamp=“1392289594”]
[quote author=svennand link=topic=7501.msg58852#msg58852 date=1392289419]
[quote author=Ignition75 link=topic=7501.msg58847#msg58847 date=1392282610]
[quote author=svennand link=topic=7501.msg58844#msg58844 date=1392281548]
Anyone know of a windows program to regulate the voltage?
Starting to think my sapphire 280x toxic are voltage locked:(My asus matrix cards had no issue with the asus gpu tweak utility (windows).
But was limited how low i could set em.
[/quote]VBE7 will adjust your voltages for you mate. Flash with atiwinflash…
[/quote]Damnit, have to flash em then i guess :)
Was hoping i didnt need to
[/quote]Hehe yeah, it’s better that way, it feels more proper doesn’t it?
[/quote]havent flashed an GPU since before the millenium, not to sure ???