X11 configurations for 270X, 280X, 290X, and 7950

Silver_Pharaoh · Nov 9, 2014

Wolf0 said:
I run xI 128 on 270X, if it helps.

Will try right now thanks!
-I 19 gets me 2.5 Mh on the 270x
and -I 16 gets me 2Mh on the nose on the 7850.

Somehow I think those are low :shrug:

EDIT: So xI 128 only gets me 2.3 Mh..
Somehow a loss of 200Kh?

Weird... That can't be right.

Janus67 · Nov 9, 2014

Just started on the 280xs, 1050/1300, with xi128 getting 3.8mh/s on each right now. May try upping the memory once I know it is stable

Oklahoma Wolf · Nov 9, 2014

Silver_Pharaoh said:
-I 19 gets me 2.5 Mh on the 270x

That's right around what I get on my 270s. The Asus 270X gets 2.7, but it runs at 1120/1500. Takes a 7950 to break the 3mhs barrier. At least, do it easily.

I've got all my cards BIOS modded for optimal settings now, just so XMR will mine top speed on all cards without me messing with dummy plugs. Haven't gotten any more out of x11 on any public miner for a while now. Still running xi 64 on all cards.

Also now on 14.9 on all rigs. No major speed difference. Got neoscrypt at Nicehash up and running today, but only long enough to get the settings for the 280X nailed down. Not that interested in that algorithm, but at least I know I can get it working if I need to. I'm still not seeing any compelling reason to walk away from XMR mining, so I'm just going to leave the rigs alone and keep plugging away at it until the market sets me on another path.

Now have a second MSI 280X coming. Man, I hope that one does 1800 on the memory, too...

Silver_Pharaoh · Nov 10, 2014

Oklahoma Wolf said:
That's right around what I get on my 270s. The Asus 270X gets 2.7, but it runs at 1120/1500. Takes a 7950 to break the 3mhs barrier. At least, do it easily.

I've got all my cards BIOS modded for optimal settings now, just so XMR will mine top speed on all cards without me messing with dummy plugs. Haven't gotten any more out of x11 on any public miner for a while now. Still running xi 64 on all cards.

Also now on 14.9 on all rigs. No major speed difference. Got neoscrypt at Nicehash up and running today, but only long enough to get the settings for the 280X nailed down. Not that interested in that algorithm, but at least I know I can get it working if I need to. I'm still not seeing any compelling reason to walk away from XMR mining, so I'm just going to leave the rigs alone and keep plugging away at it until the market sets me on another path.

Now have a second MSI 280X coming. Man, I hope that one does 1800 on the memory, too...

Hmm. I guess your ASUS is superior to my Sapphire since I run it at 1120/1500 as well

Comforting to know the cards are doing as much Mh as they can.

Oklahoma Wolf · Nov 17, 2014

Wolf0 said:
I run xI 128 on 270X, if it helps.

Off topic just a bit, but figured you'd be interested. I don't have an account at Bitcointalk and no intention of ever getting one.

Your Neoscrypt kernel works fine on my HD7770 1GB, got it running one thread, 80khs, same TC and intensity as the Pitcairns and Tahitis. The 6870 1GB does not like it at all... I can only get that card up to intensity 14, 17khs. Anything above intensity 14 crashes the driver. Tried multiple TCs, one thread, different worksizes... no good for that card.

Everything else runs fine albeit with a ton of hardware errors, so I'm not going to worry about it. That card's turned off while the others play. I might switch back to 14.6 and putter around with it some more later.

Edit - got 'em all working, except one rig's fighting me over driver installation for some reason. Even the 6870 is working at 19khs. The MSI 280X is actually running slower than the Hynix 7950 for some reason (250 vs 275), so I still have some tweaking to do.

Wolf0 · Nov 17, 2014

Oklahoma Wolf said:
Off topic just a bit, but figured you'd be interested. I don't have an account at Bitcointalk and no intention of ever getting one.

Your Neoscrypt kernel works fine on my HD7770 1GB, got it running one thread, 80khs, same TC and intensity as the Pitcairns and Tahitis. The 6870 1GB does not like it at all... I can only get that card up to intensity 14, 17khs. Anything above intensity 14 crashes the driver. Tried multiple TCs, one thread, different worksizes... no good for that card.

Everything else runs fine albeit with a ton of hardware errors, so I'm not going to worry about it. That card's turned off while the others play. I might switch back to 14.6 and putter around with it some more later.

Edit - got 'em all working, except one rig's fighting me over driver installation for some reason. Even the 6870 is working at 19khs. The MSI 280X is actually running slower than the Hynix 7950 for some reason (250 vs 275), so I still have some tweaking to do.

Good to know, thanks. And boy, do I understand why you don't want a BCT account.

Oklahoma Wolf · Nov 17, 2014

Also finding that the 4GB 270X is 10khs faster on Neoscrypt than the fastest 2GB cards. Clock speeds not equal - that one's at 1080/1500 while the fastest 2GB is 1120/1500.

Still not sure why the MSI isn't keeping up, but the Elpida 7950 is now running faster too. Can't find any good reason for it, but it's probably something obvious I'm missing. Now running I12 all rigs.

Edit - looks like the MSI likes I13 better. 280khs there. 1180/1500.

Wolf0 · Nov 17, 2014

Try higher intensity on the 4GB card.

Oklahoma Wolf · Nov 17, 2014

No good - anything over 12 slows it down. I tried up to 18. Set the clocks to 1120/1500 to match the Asus 2GB 270X, and that only gave it another 2khs. So 150 vs 138.

Forced 64 bit pointers to make it see the whole 4GB... no change on that card or any of the 270s, but that took the Elpida 7950 from 266 down to 240.

Wolf0 · Nov 17, 2014

Ah, probably not enough compute.

Wolf0 · Nov 17, 2014

Silver_Pharaoh said:
Hmm. I guess your ASUS is superior to my Sapphire since I run it at 1120/1500 as well
Comforting to know the cards are doing as much Mh as they can.

Nah, it's not - up that clock!

Silver_Pharaoh · Nov 17, 2014

Wolf0 said:
Nah, it's not - up that clock!

lulz
It's been a while since I went crazy and OC'd it.

Lemme see what it can do

EDIT: Peaked at 2.85 Mh @ 1250 core 1500 mem 1.27 volts
xI: 1024

Then it just drops as usual back to 2.6 Mh.
I think it's this "sgminer 5", the hashrate really fluctuates with it.

Doesn't matter much anymore.

Wolf0 · Nov 17, 2014

Memclock matters with the stock kernel, just so you know.

Silver_Pharaoh · Nov 17, 2014

Wolf0 said:
Memclock matters with the stock kernel, just so you know.

Yep. Ever since I bought the 270x, I've found that 1500 Mhz on the memory is the best.
It was pushing 512 Kh on scrpyt way back when

So I just left it on 1500 ever since.

Wolf0 · Nov 17, 2014

Silver_Pharaoh said:
Yep. Ever since I bought the 270x, I've found that 1500 Mhz on the memory is the best.
It was pushing 512 Kh on scrpyt way back when

So I just left it on 1500 ever since.

I noticed that too, but figured I'd mention it. Side note: WOO! Broke 4.4MH/s X11 with my 270X

Oklahoma Wolf · Nov 18, 2014

Not even my one Hynix 270 (the 4GB) likes more than 1500 on the memory, I've found. Slows everything down.

I must have fixed something when I put 14.6 back on the rig with the Hynix 7950, because not only is it breathing down the 280X's neck for Neoscrypt but it's now slaughtering XMR. On 14.7-14.9 the best that card would do stable was 530. Now it's doing 575 at 1000/1500. Big difference.

Wolf0 · Nov 18, 2014

Oklahoma Wolf said:
Not even my one Hynix 270 (the 4GB) likes more than 1500 on the memory, I've found. Slows everything down.

I must have fixed something when I put 14.6 back on the rig with the Hynix 7950, because not only is it breathing down the 280X's neck for Neoscrypt but it's now slaughtering XMR. On 14.7-14.9 the best that card would do stable was 530. Now it's doing 575 at 1000/1500. Big difference.

Whoa, nice. I've found the OpenCL 2 release is awesome

Oklahoma Wolf · Nov 18, 2014

Now I've got it tied with the 280X... 597 on XMR. 1080/1500. It's running hot, but I'm going to be mighty pleased indeed if it can keep this up.

Unlike 14.7-14.9, going beyond 1500 does not improve hashrate like it did. 1500 is the upper limit. Which should keep it from whitescreening any more.

Seeing the real value of a Stilt BIOS on a Hynixed Tahiti, I am.

Silver_Pharaoh · Nov 18, 2014

Wolf0 said:
I noticed that too, but figured I'd mention it. Side note: WOO! Broke 4.4MH/s X11 with my 270X

I'm sorry? :drool:

Care to share how you are doubling my 270x?????????

Custom kernel I bet

Wolf0 · Nov 18, 2014

Silver_Pharaoh said:
I'm sorry?

Care to share how you are doubling my 270x?????????

Custom kernel I bet

Yeah, my kernel. I also just got 10+ on 290X.

X11 configurations for 270X, 280X, 290X, and 7950

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