Underclocking Memory Speeds Correctly on 7xxx Series Cards With Afterburner

[crazyates]

crazyates, what is your hash rate at 1050/410?  I'm currently using 1050/300 and getting 631 Mh/s.  Just trying to compare.

630MH/s. 12.8, but with the 12.10 OCL runtime.

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[CrazyGuy]

crazyates, what is your hash rate at 1050/410?  I'm currently using 1050/300 and getting 631 Mh/s.  Just trying to compare.

630MH/s. 12.8, but with the 12.10 OCL runtime.

What APP SDK are you using? 1050/410 with 12.8 and 12.10 OCL runtime is only getting me around 593 Mh/s

[Fiyasko]

crazyates, what is your hash rate at 1050/410?  I'm currently using 1050/300 and getting 631 Mh/s.  Just trying to compare.

630MH/s. 12.8, but with the 12.10 OCL runtime.

What APP SDK are you using? 1050/410 with 12.8 and 12.10 OCL runtime is only getting me around 593 Mh/s

:s im getting 555ish
CGminer Diablo v1 w256 I:7

[CrazyGuy]

Static intensity of 11 appears to have brought me up around 630

[iCEBREAKER]

crazyates, what is your hash rate at 1050/410?  I'm currently using 1050/300 and getting 631 Mh/s.  Just trying to compare.

That's a great result!  I'm get ~690MH running at 1170/1020.

I know slower mem would drop temps, but MSIA is a PITA.  

EDIT: This is on a proxy pool not using stratum.

[Aion2n]

crazyates, what is your hash rate at 1050/410?  I'm currently using 1050/300 and getting 631 Mh/s.  Just trying to compare.

That's a great result!  I'm get ~690MH running at 1170/1020.

I know slower mem would drop temps, but MSIA is a PITA.  

I have 692 Mh at 1150/1000.

[iCEBREAKER]

I have 692 Mh at 1150/1000.

How many threads, and at what intensity?

[crashoveride54902]

crazyates, what is your hash rate at 1050/410?  I'm currently using 1050/300 and getting 631 Mh/s.  Just trying to compare.

That's a great result!  I'm get ~690MH running at 1170/1020.

I know slower mem would drop temps, but MSIA is a PITA.  

I have 692 Mh at 1150/1000.

Ace` on slush's pool gets 725mh/s with a msi 7970...i thought he was bs'in but he did produce a screenshot with miner n clock speed of 1150 dunno how he does it...and that's just with cgminer I9...my 7970 can only do bout 660mh/s at 1150

[Hippie Tech]

crazyates, what is your hash rate at 1050/410?  I'm currently using 1050/300 and getting 631 Mh/s.  Just trying to compare.

That's a great result!  I'm get ~690MH running at 1170/1020.

I know slower mem would drop temps, but MSIA is a PITA.   

I have 692 Mh at 1150/1000.

Ace` on slush's pool gets 725mh/s with a msi 7970...i thought he was bs'in but he did produce a screenshot with miner n clock speed of 1150 dunno how he does it...and that's just with cgminer I9...my 7970 can only do bout 660mh/s at 1150

Its easy to get abnormally high or low readings with Slush's. Especially right after a block has been found.

My 460 mhash/s 7870 once clocked in at 800+ mhash/s.  lol

[crashoveride54902]

do you think he sat there and waited for a new block? just so he could bs about it?

crazyates, what is your hash rate at 1050/410?  I'm currently using 1050/300 and getting 631 Mh/s.  Just trying to compare.

That's a great result!  I'm get ~690MH running at 1170/1020.

I know slower mem would drop temps, but MSIA is a PITA.   

I have 692 Mh at 1150/1000.

Ace` on slush's pool gets 725mh/s with a msi 7970...i thought he was bs'in but he did produce a screenshot with miner n clock speed of 1150 dunno how he does it...and that's just with cgminer I9...my 7970 can only do bout 660mh/s at 1150

Its easy to get abnormally high or low readings with Slush's. Especially right after a block has been found.

My 460 mhash/s 7870 once clocked in at 800+ mhash/s.  lol

[Hippie Tech]

It was probably an honest mistake.

Join Slush's pool with any gpu and see for yourself.

ANY 300-700 mhash/s gpu will be easily tossed around when its up against a 3.2+ Thash/s proportional pool.

[Radacoin]

12.6+ AMD drivers do not let you change the memory speed of 7xxx (7950, 7970, etc) cards below a certain threshold.  To underclock memory, use Afterburner and a dll file.

1) Install MSI afterburner.
...

I have done all this, but I can't go lower than 685MHz on my Sapphire 7970 (Afterburner won't let me).

I use:
Windows7 64bit
MSI Afterburner 2.3.1
Catalyst 13.1

What might be the problem?

[crazyates]

12.6+ AMD drivers do not let you change the memory speed of 7xxx (7950, 7970, etc) cards below a certain threshold.  To underclock memory, use Afterburner and a dll file.

1) Install MSI afterburner.
...

I have done all this, but I can't go lower than 685MHz on my Sapphire 7970 (Afterburner won't let me).

I use:
Windows7 64bit
MSI Afterburner 2.3.1
Catalyst 13.1

What might be the problem?

Clost MSI AB. Go into the program folder, and delete everything in the "Profiles" folder. Reopen MSI AB, and your slider should reset to middle at whatever clock rate you left it off at. It will ask you to reboot, and just choose no.

[Radacoin]

12.6+ AMD drivers do not let you change the memory speed of 7xxx (7950, 7970, etc) cards below a certain threshold.  To underclock memory, use Afterburner and a dll file.

1) Install MSI afterburner.
...

I have done all this, but I can't go lower than 685MHz on my Sapphire 7970 (Afterburner won't let me).

I use:
Windows7 64bit
MSI Afterburner 2.3.1
Catalyst 13.1

What might be the problem?

Clost MSI AB. Go into the program folder, and delete everything in the "Profiles" folder. Reopen MSI AB, and your slider should reset to middle at whatever clock rate you left it off at. It will ask you to reboot, and just choose no.

I already did this (you already described this earlier in this thread).

After I reopen Afterburner my slider is on the left side, at 685MHz. It's not possible to move it any further to the left.

Wait! No! crazyates, you are a genius! I only deleted all profile-files in the profile folder. But you said everything. After I also deleted the .cfg file in the profiles folder it worked.

Thank you so much!

[crazyates]

I already did this (you already described this earlier in this thread).

After I reopen Afterburner my slider is on the left side, at 685MHz. It's not possible to move it any further to the left.

Wait! No! crazyates, you are a genius! I only deleted all profile-files in the profile folder. But you said everything. After I also deleted the .cfg file in the profiles folder it worked.

Thank you so much!

AB can be a finicky program, but once you whip it into control, it can be pretty damn awesome. Glad it's working for you!

[ryantc]

I have a strange problem with MSI AB and TRIXX, actually I have to use both.

everytime I have to open TRIXX first to undervolt all my cards.
and than open AB to adjust clock settings.

the reason I have to do it this way is because I found the

clock setting in TRIXX doesn't work with my cards,
the undervolt in AB doesn't work with my cards.

I can tell because
if I set the clock here in TRIXX,  my 7950 hash rate will never pass 500, but
if I set the same clock in AB, my hash rate will be 520
or
if I set undervolt value in MSI only, my card temp will go up to 75-80, but
if I set undervolt value in TRIXX first, my card temp will be 66-68

this problem exist in three different systems I use, (win 7 32bit, 64 bit and win 8 64bit)
my cards are all powercolor 7950 reference.

Does it have anything to do with the BIOS switch on the card? I am setting all cards to 2 now.

[crazyates]

the undervolt in AB doesn't work with my cards.

Have you tried this: Go into the AB settings, and tell AB to "Force Constant Voltage"

[ryantc]

the undervolt in AB doesn't work with my cards.

Have you tried this: Go into the AB settings, and tell AB to "Force Constant Voltage"

I saw this option like million of times, but don't have knowledge what it does
I am going to try it now see if it works.

thanks crazyates

report back,
it works now and finally I can uninstall TRIXX and use only MSI AB 

[crazyates]

the undervolt in AB doesn't work with my cards.

Have you tried this: Go into the AB settings, and tell AB to "Force Constant Voltage"

I saw this option like million of times, but don't have knowledge what it does
I am going to try it now see if it works.

thanks crazyates

Most cards have a dynamic voltage, but some are controlled by hardware, and some by software. My Gigabyte 7970 Windforce has this, and neither CGMiner nor MSI AB could set the voltage, and have it stick. Forcing a constant voltage is sort of like turning off the power saving features when you're overclocking a CPU. It Forces a constant voltage (doh), regardless of the clock speed. This means that at 300MHz or 1100MHz, your core will be running at the same 1.05V (or whatever you set it to). On my 7970, this was the option that finally let me control the voltages on my 7970.

[ryantc]

I should have googled and learned it

now all my 7950s are working at 1.063/1000/625 happily
and my only XFX 7850 seems has a locked voltage  , so now it's funny to see that it does less work but with the highest temp of 74C
other 7950s are all below 70C