Topic: CCminer(SP-MOD) Modded NVIDIA Maxwell / Pascal kernels. - page 1067. (Read 2347601 times)

How do you do this or what do you use?

@bensam: When OCing memory, make sure you do so for P2 mode. I think afterburner will only do P0.

release 50 is a little bit faster than 51 and 52 on qubit , to my mixed 750ti/970 rig...

have rig with 4 970 and 2 980.
mining speed always jump from 65000 khs to 101 000. with avarage speed 85000. why this is happen? on others rig speed doesnt jump so huge
and sometimes it closes with 28 error.

Anyone have problems undervolting. Im trying to undervolt my cards right now and it wont stick. It just rebounds back to 0 in afterburner when I click apply.

Also memory OC doesn't seem to do anything. My memory always seems to operate at the same speed, regardless of what it's set for. It even 'underclocks' under normal memory parameters for the card. All of my cards sit at 3005 for memory speed while mining. When I OC them, they spike when mining starts and when it stops, but they go down to 3005 normally.


1.5.52 seems just as fast as the last three versions for quark unless I'm missing something.

Setting intensity higher then the default of 24 always causes the miner to error out as well.



It's not about what the connectors are rated at, rather the amount of pins available for delivery. Rated delivery for a socket is just a specification. Just the same as you should be able to use 750tis without PCI-E connectors and have no problem, it doesn't always work that way in practice and you end up with boards with burned out traces.

Electrical transfer doesn't work like a thermal transfer.

I wasn't talking about problems for the connectors. Just talking about system stability and ability to OC. I mentioned the problem I had in passing, which has absolutely nothing to do with my GPUs or what I was talking about. I never expected/expect my connector to melt.


Yup... They also take up more space between cards reducing airflow and act like a hot plate, keeping cards around them hotter.

A lot of backplates and heatsink designs have no contact with the memory or with the VRM modules which means they are pretty much useless and they really are just trapping heat. Unless you manually put thermal pads in between to fill the gap and let the heat actually trasfer because air is terrible at transfering heat.

Yes, fairly new. Since most people have 9xx cards now it only makes sense. The Windows binaries have
had compute 5.2 for a while, you would only run into problems if you tried to compile.

Is it a new thing? I compiled 1.5.51 without any problem.
And since my rig only has 750 Ti, I shouldn't even need compute 5.2 for now. Thanks for giving me the line to change. It works.

doesnt work for me under windows

Cuda error in func 'x11_simd512_cpu_init' at line 614 : invalid texture reference.

You need the version of cuda 6.5 that supports 9xx cards.

https://developer.nvidia.com/cuda-downloads-geforce-gtx9xx

If you don't have any 9xx cards you can remove compute_52 from Makefile.am.
Edit: assuming Linux, edit project properties on windows.
Note the "+" was removed from the compute_50 line.


You can also run 9xx cards with only compute_50 but presumably at lower performance.

I'm having trouble compiling on linux (ubuntu 15.04):

released. I had to rollback a change in aes that was not faster.

Will you be releasing a already compiled version for windows?

1.5.52(sp-mod)
@sp-hash sp-hash released this 11 minutes ago

-Faster myriad-groestlcoin (myr-gr)
-Faster quark
-compiled with the latest nvidia driver(31-mai-2015) (980ti support)


1.5.52(sp-MOD) is available here: (06-6-2015)

https://github.com/sp-hash/ccminer/releases/tag/1.5.52

The sourcecode is available here:

https://github.com/sp-hash/ccminer

My 970 has 2x6 pin PCIe connections which is the same as 1x8 which is enough for the rated power
with headroom for OCing. Some 980s (165W) have only 2x6. That shouldn't cause problems for the
connectors unless they are defective. The only real benefit I see with connector overkill is offloading
the PCIe bus, a good idea in multi GPU rigs.

As far as areas of delivery there are only 2, the bus on one corner of the card, and the connector cluster
at the opposite corner. Adding pins to the connector cluster doesn't create more areas of delivery, it
only increases the capacity of the cluster area. Adding more areas requires power connectors at different
locations on the card, but that would complicate cable management and airflow.

Anyway it looks like your problem is fixed and I don't expect your connectors to melt, but don't sue me.

Anyone have problems undervolting. Im trying to undervolt my cards right now and it wont stick. It just rebounds back to 0 in afterburner when I click apply.


I don't think we're talking about the same thing. I'm not talking about molex adapters, rather pcie 8 pin or 6+8 pin plugs on the cards themselves. In my example the 970 only has one 8pin connector instead of a 6+8. Same watts, less areas for delivery.

I've seen reviews where they've shown the cards are cooler without backplates. They don't do anything except trap heat. Sometimes they don't even make contact with the memory, which is the only reason to have a backplate in the first place. If it doesn't make contact with anything except the screw mounts it's essentially a insulator.

Hope you get better soon. Thank you for not only improving the ccminer project but the community as well. Really appreciate it.

Too keep you warm I've decided to let my spare 750ti mine for you....don't expect to much of an income though because it will be active only at night or when I'm not using it

Reverted some changes in quark and submitted another optimalization. JH512 and keccak are running in parallell, but when I swiched the order it seems to run faster. Need to verify on the pool though..

Caugth a cold. Have fever and eating pills. will be little updates the next few days..

BACKPLATES, MOLEX ADAPTERS--

I disagree with your statement about backplates, most users report cooler temps by 1-2 degrees with backplates.  And, molex adapters on anything bigger than a 750ti is asking for melted plastic and a short-circuit.  My 280x's melted molex-to-PCI connecter adapters before my eyes last year.  I am lucky to have been watching while it happened, and able to power down the rig.       --scryptr

The TDP the cards operate at are also much higher even at the same voltage then the other cards I have (according to gpuz, afterburner), this very much limits the OCability of the cards as well regardless of how they're touted on the sales pages (unfortunately).

Changed out the PSU and it fixed the problem. There isn't more then one 8pin connector so I couldn't use more then one connector to split up the load.

I meant over-current protection.

Also don't buy cards with backplates on them. They sound like a great idea, but they're rarely designed well (like a heatsink) and trap heat between the card and the air around it. They don't aid in cooling and actually make things worse. I didn't see the Strix had them before I bought it.