= ClockTweak = win32 command line clock/voltage tweaking tool - NOW FREE!

[willphase]

clocktweak doesn't let me clock my XFX HD5870 (link) above 900Mhz.

I could however overclock above 900 using the AMD tool (link), so it's not a hardware restriction, and I'm now using that tool instead...

Here is my clocktweak -x

Code:

C:\bitcoin\clocktweak>clocktweak -x
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Exploring up to 20 adapters:
A.#:0  r:0 ID:19237632  Name:"ATI Radeon HD 5800 Series"  Active:1  GPU:0
A.#:1  r:0 ID:19237632  Name:"ATI Radeon HD 5800 Series"  Active:0  GPU:0
A.#:2  r:0 ID:19237632  Name:"ATI Radeon HD 5800 Series"  Active:0  GPU:0
A.#:3  r:0 ID:112797824  Name:"ATI Radeon HD 5800 Series"  Active:1  GPU:1
A.#:4  r:0 ID:112797824  Name:"ATI Radeon HD 5800 Series"  Active:0  GPU:1
A.#:5  r:0 ID:112797824  Name:"ATI Radeon HD 5800 Series"  Active:0  GPU:1
A.#:6  r:-1 ERROR: explore_adapters: adapter  6 could not be initialized (-1)
A.#:7  r:-1 ERROR: explore_adapters: adapter  7 could not be initialized (-1)
A.#:8  r:-1 ERROR: explore_adapters: adapter  8 could not be initialized (-1)
A.#:9  r:-1 ERROR: explore_adapters: adapter  9 could not be initialized (-1)
A.#:10  r:-1 ERROR: explore_adapters: adapter  10 could not be initialized (-1)
A.#:11  r:-1 ERROR: explore_adapters: adapter  11 could not be initialized (-1)
A.#:12  r:-1 ERROR: explore_adapters: adapter  12 could not be initialized (-1)
A.#:13  r:-1 ERROR: explore_adapters: adapter  13 could not be initialized (-1)
A.#:14  r:-1 ERROR: explore_adapters: adapter  14 could not be initialized (-1)
A.#:15  r:-1 ERROR: explore_adapters: adapter  15 could not be initialized (-1)
A.#:16  r:-1 ERROR: explore_adapters: adapter  16 could not be initialized (-1)
A.#:17  r:-1 ERROR: explore_adapters: adapter  17 could not be initialized (-1)
A.#:18  r:-1 ERROR: explore_adapters: adapter  18 could not be initialized (-1)
A.#:19  r:-1 ERROR: explore_adapters: adapter  19 could not be initialized (-1)

valid adapters: [0, 1, 2, 3, 4, 5]
gpuAdapters: [0, 3]

Compatible GPUs found on these adapters:
Adapter#:0  ID:19237632  Name:"ATI Radeon HD 5800 Series"  Active:1  GPU:0
Adapter#:3  ID:112797824  Name:"ATI Radeon HD 5800 Series"  Active:1  GPU:1

Reading data:
Adapter#:0 Temp:69 Load:99 Fan:58 Level:2
CoreL0:950 CoreL2:950 MemL0:450 MemL2:450 mVoltL0:1163 mVoltL2:1163

Adapter#:3 Temp:75 Load:99 Fan:70 Level:2
CoreL0:910 CoreL2:910 MemL0:400 MemL2:400 mVoltL0:1163 mVoltL2:1163

Here is the error I get when trying to set above 900. Get same error for both adapters, any value above 900.

Code:

C:\bitcoin\clocktweak>clocktweak -y -a 3 -c910
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #3:
  setting core speed: 910 [MHz]
ERROR: write_values: core speed 910 could not be set (1): False

HTH,

W

[Clipse]

I bought this just for the ease of adjusting mem to 300 on all cards.

However, do you know how amd gpu tool get to raise core clock higher than bios allows? I would love to use this clocktweak program to adjust more than just one cards above bios limit.

[grue]

5830:

1G1JMhCCMLqFwhCM2ctZzJgg86PiewETkC

[grue]

5830:
http://i.min.us/idfBmA.PNG
1G1JMhCCMLqFwhCM2ctZzJgg86PiewETkC

care to explain more ?

It is still in beta phase, so please help testing. You will get a full refund if you are the first to test ClockTweak to change clock/mem speeds and reduce voltage in one of the following environments and post a copy of the outputs of the "-x" option here. Please include information about the type and manufacturer of your card(s)!

I guess I have to add it's sapphire 5830, xtreme

still waiting for payment.

[SteveFL]

Hi, received the app and it works great.  

EDIT: Summary of tests, all were able to underclock memory to 300mhz.
XFX HD5850 Win7 64bit,  -v range is 951 to 1100 in steps of 1
HIS HD5770 WinXP 32bit,  no voltage control, fan speed reports unknown
Sapphire HD5750 Win7 64bit, -v appears in to be steps of 1, did not test full range.

Would like two feature requests:

1) ability to control fan speed from command line.  This way I can script idle/mining/gaming and control temps a little better.
2) bare format (suppress program name and version) that shows date/time and all adapter details in one line, would like to be able to run this every 5 mins and dump to a text file for logging/monitoring

XFX HD5850, 2 monitors attached, Win7 64bit

Code:

C:\Program Files (x86)\clocktweak>clocktweak -x
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Exploring up to 20 adapters:
A.#:0  r:0 ID:50299136  Name:"ATI Radeon HD 5800 Series"  Active:1  GPU:0
A.#:1  r:0 ID:50299136  Name:"ATI Radeon HD 5800 Series"  Active:1  GPU:0
A.#:2  r:0 ID:50299136  Name:"ATI Radeon HD 5800 Series"  Active:0  GPU:0
A.#:3  r:-1 ERROR: explore_adapters: adapter  3 could not be initialized (-1)
A.#:4  r:-1 ERROR: explore_adapters: adapter  4 could not be initialized (-1)
A.#:5  r:-1 ERROR: explore_adapters: adapter  5 could not be initialized (-1)
A.#:6  r:-1 ERROR: explore_adapters: adapter  6 could not be initialized (-1)
A.#:7  r:-1 ERROR: explore_adapters: adapter  7 could not be initialized (-1)
A.#:8  r:-1 ERROR: explore_adapters: adapter  8 could not be initialized (-1)
A.#:9  r:-1 ERROR: explore_adapters: adapter  9 could not be initialized (-1)
A.#:10  r:-1 ERROR: explore_adapters: adapter  10 could not be initialized (-1)
A.#:11  r:-1 ERROR: explore_adapters: adapter  11 could not be initialized (-1)
A.#:12  r:-1 ERROR: explore_adapters: adapter  12 could not be initialized (-1)
A.#:13  r:-1 ERROR: explore_adapters: adapter  13 could not be initialized (-1)
A.#:14  r:-1 ERROR: explore_adapters: adapter  14 could not be initialized (-1)
A.#:15  r:-1 ERROR: explore_adapters: adapter  15 could not be initialized (-1)
A.#:16  r:-1 ERROR: explore_adapters: adapter  16 could not be initialized (-1)
A.#:17  r:-1 ERROR: explore_adapters: adapter  17 could not be initialized (-1)
A.#:18  r:-1 ERROR: explore_adapters: adapter  18 could not be initialized (-1)
A.#:19  r:-1 ERROR: explore_adapters: adapter  19 could not be initialized (-1)

valid adapters: [0, 1, 2]
gpuAdapters: [0]

Compatible GPUs found on these adapters:
Adapter#:0  ID:50299136  Name:"ATI Radeon HD 5800 Series"  Active:1  GPU:0

Reading data:
Adapter#:0 Temp:60 Load:96 Fan:75 Level:2
CoreL0:157 CoreL2:775 MemL0:298 MemL2:1050 mVoltL0:950 mVoltL2:1088

Code:

C:\Program Files (x86)\clocktweak>clocktweak.exe  -a 0 -m300 -y
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting mem speed: 300 [MHz]
Set values - finished.

Reading:
#0: Temp:60 Load: 0 Fan:74 Level:2 CoreL2:775 MemL2:300 mVoltL2:1088

Code:

C:\Program Files (x86)\clocktweak>clocktweak.exe  -a 0 -v1087 -y
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting voltage 1087 [mV]
Set values - finished.

Reading:
#0: Temp:58 Load: 0 Fan:75 Level:2 CoreL2:775 MemL2:300 mVoltL2:1087

C:\Program Files (x86)\clocktweak>clocktweak.exe  -a 0 -v1086 -y
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting voltage 1086 [mV]
Set values - finished.

Reading:
#0: Temp:58 Load: 0 Fan:75 Level:2 CoreL2:775 MemL2:300 mVoltL2:1086

C:\Program Files (x86)\clocktweak>clocktweak.exe  -a 0 -v1085 -y
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting voltage 1085 [mV]
Set values - finished.

Reading:
#0: Temp:58 Load: 0 Fan:75 Level:2 CoreL2:775 MemL2:300 mVoltL2:1085

C:\Program Files (x86)\clocktweak>clocktweak.exe  -a 0 -v1050 -y
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting voltage 1050 [mV]
Set values - finished.

Reading:
#0: Temp:58 Load: 0 Fan:75 Level:2 CoreL2:775 MemL2:300 mVoltL2:1050

C:\Program Files (x86)\clocktweak>clocktweak.exe  -a 0 -v1000 -y
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting voltage 1000 [mV]
Set values - finished.

Reading:
#0: Temp:57 Load: 0 Fan:75 Level:2 CoreL2:775 MemL2:300 mVoltL2:1000

Just a note.. after undervolting to 1000 I stabilized at 52C.

Code:

#0: Temp:52 Load:98 Fan:75 Level:2 CoreL2:775 MemL2:300 mVoltL2:1000

HIS 5770, 1 monitor, WinXP 32bit
No luck at all on undervolting.  Also can't see fan speed.

Code:

C:\Program Files\clocktweak>clocktweak.exe -x
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Exploring up to 20 adapters:
A.#:0  r:4 ID:-512820704  Name:"ATI Radeon HD 5700 Series"  Active:1  GPU:0
A.#:1  r:4 ID:-512820704  Name:"ATI Radeon HD 5700 Series"  Active:0  GPU:0
A.#:2  r:-1 ERROR: explore_adapters: adapter  2 could not be initialized (-1)
A.#:3  r:-1 ERROR: explore_adapters: adapter  3 could not be initialized (-1)
A.#:4  r:-1 ERROR: explore_adapters: adapter  4 could not be initialized (-1)
A.#:5  r:-1 ERROR: explore_adapters: adapter  5 could not be initialized (-1)
A.#:6  r:-1 ERROR: explore_adapters: adapter  6 could not be initialized (-1)
A.#:7  r:-1 ERROR: explore_adapters: adapter  7 could not be initialized (-1)
A.#:8  r:-1 ERROR: explore_adapters: adapter  8 could not be initialized (-1)
A.#:9  r:-1 ERROR: explore_adapters: adapter  9 could not be initialized (-1)
A.#:10  r:-1 ERROR: explore_adapters: adapter  10 could not be initialized (-1)
A.#:11  r:-1 ERROR: explore_adapters: adapter  11 could not be initialized (-1)
A.#:12  r:-1 ERROR: explore_adapters: adapter  12 could not be initialized (-1)
A.#:13  r:-1 ERROR: explore_adapters: adapter  13 could not be initialized (-1)
A.#:14  r:-1 ERROR: explore_adapters: adapter  14 could not be initialized (-1)
A.#:15  r:-1 ERROR: explore_adapters: adapter  15 could not be initialized (-1)
A.#:16  r:-1 ERROR: explore_adapters: adapter  16 could not be initialized (-1)
A.#:17  r:-1 ERROR: explore_adapters: adapter  17 could not be initialized (-1)
A.#:18  r:-1 ERROR: explore_adapters: adapter  18 could not be initialized (-1)
A.#:19  r:-1 ERROR: explore_adapters: adapter  19 could not be initialized (-1)

valid adapters: [0, 1]
gpuAdapters: [0]

Compatible GPUs found on these adapters:
Adapter#:0  ID:-512820704  Name:"ATI Radeon HD 5700 Series"  Active:1  GPU:0

Reading data:
Adapter#:0 Temp:44 Load: 0 Fan:N.A
Level:2
CoreL0:157 CoreL2:960 MemL0:298 MemL2:1200 mVoltL0:1200 mVoltL2:1200

Code:

C:\Program Files\clocktweak>clocktweak.exe -a 0 -m300 -y
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting mem speed: 300 [MHz]
Set values - finished.

Reading:
#0: Temp:43 Load: 0 Fan:N.A
Level:0 CoreL2:960 MemL2:300 mVoltL2:1200

Tried values 1000, 1050-1199, 1201:

Code:

C:\Program Files\clocktweak>clocktweak -a 0  -v1199 -y
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting voltage 1199 [mV]
ERROR: write_values: voltage 1199 could not be set (1)

C:\Program Files\clocktweak>clocktweak -a 0  -y -v1201
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting voltage 1201 [mV]
ERROR: write_values: voltage 1201 could not be set (2)

And finally Sapphire 5750, 2 monitors, Win7 64bit:

Code:

C:\utils\clocktweak>clocktweak.exe -x
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Exploring up to 20 adapters:
A.#:0  r:6 ID:57783680  Name:"ATI Radeon HD 5700 Series"  Active:1  GPU:0
A.#:1  r:6 ID:57783680  Name:"ATI Radeon HD 5700 Series"  Active:1  GPU:0
A.#:2  r:6 ID:57783680  Name:"ATI Radeon HD 5700 Series"  Active:0  GPU:0
A.#:3  r:-1 ERROR: explore_adapters: adapter  3 could not be initialized (-1)
A.#:4  r:-1 ERROR: explore_adapters: adapter  4 could not be initialized (-1)
A.#:5  r:-1 ERROR: explore_adapters: adapter  5 could not be initialized (-1)
A.#:6  r:-1 ERROR: explore_adapters: adapter  6 could not be initialized (-1)
A.#:7  r:-1 ERROR: explore_adapters: adapter  7 could not be initialized (-1)
A.#:8  r:-1 ERROR: explore_adapters: adapter  8 could not be initialized (-1)
A.#:9  r:-1 ERROR: explore_adapters: adapter  9 could not be initialized (-1)
A.#:10  r:-1 ERROR: explore_adapters: adapter  10 could not be initialized (-1)
A.#:11  r:-1 ERROR: explore_adapters: adapter  11 could not be initialized (-1)
A.#:12  r:-1 ERROR: explore_adapters: adapter  12 could not be initialized (-1)
A.#:13  r:-1 ERROR: explore_adapters: adapter  13 could not be initialized (-1)
A.#:14  r:-1 ERROR: explore_adapters: adapter  14 could not be initialized (-1)
A.#:15  r:-1 ERROR: explore_adapters: adapter  15 could not be initialized (-1)
A.#:16  r:-1 ERROR: explore_adapters: adapter  16 could not be initialized (-1)
A.#:17  r:-1 ERROR: explore_adapters: adapter  17 could not be initialized (-1)
A.#:18  r:-1 ERROR: explore_adapters: adapter  18 could not be initialized (-1)
A.#:19  r:-1 ERROR: explore_adapters: adapter  19 could not be initialized (-1)

valid adapters: [0, 1, 2]
gpuAdapters: [0]

Compatible GPUs found on these adapters:
Adapter#:0  ID:57783680  Name:"ATI Radeon HD 5700 Series"  Active:1  GPU:0

Reading data:
Adapter#:0 Temp:47 Load: 3 Fan:N.A
Level:0
CoreL0:157 CoreL2:860 MemL0:298 MemL2:1160 mVoltL0:1000 mVoltL2:1100

Code:

C:\utils\clocktweak>clocktweak -a 0 -y -m300
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting mem speed: 300 [MHz]
Set values - finished.

Reading:
#0: Temp:46 Load: 0 Fan:N.A
Level:0 CoreL2:860 MemL2:300 mVoltL2:1000

C:\utils\clocktweak>clocktweak -a 0 -y -v1100
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting voltage 1100 [mV]
Set values - finished.

Reading:
#0: Temp:58 Load: 0 Fan:N.A
Level:2 CoreL2:855 MemL2:300 mVoltL2:1100

C:\utils\clocktweak>clocktweak -a 0 -y -v1099
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting voltage 1099 [mV]
Set values - finished.

Reading:
#0: Temp:58 Load: 0 Fan:N.A
Level:2 CoreL2:855 MemL2:300 mVoltL2:1099

C:\utils\clocktweak>clocktweak -a 0 -y -v1098
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting voltage 1098 [mV]
Set values - finished.

Reading:
#0: Temp:58 Load: 0 Fan:N.A
Level:2 CoreL2:855 MemL2:300 mVoltL2:1098

[Raigekisai]

Working fine on my Crossfire 5770's. MSI Hawk and XFX respectively. If you got that PM I sent earlier, well, it was a bios wall I was hitting on the XFX card. Flashing a new Bios solved the problem..

https://i.imgur.com/lmnC2.jpg

[phelix]

Hey everybody!

I'm back from holiday. Will dig through the testing refunds, feature requests and so on =)

[phelix]

I bought this just for the ease of adjusting mem to 300 on all cards.

However, do you know how amd gpu tool get to raise core clock higher than bios allows? I would love to use this clocktweak program to adjust more than just one cards above bios limit.

low level hardware access bypassing the driver would be necessary. Also there are different voltage regulators that the manufacturers use. I would look into it for the Sapphire HD 5850 Xtreme Rev 2 as I have a couple of these cards myself but it is difficult to even get the chip specification...

[phelix]

Working fine on my Crossfire 5770's. MSI Hawk and XFX respectively. If you got that PM I sent earlier, well, it was a bios wall I was hitting on the XFX card. Flashing a new Bios solved the problem..

I got it and send you the testing refund! Thanks for the info.

[hawks5999]

Code:

C:\Program Files\clocktweak>clocktweak.exe -a
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Compatible GPUs found on these adapters:
Adapter#:0  ID:-1672878656  Name:"AMD Radeon HD 6900 Series"  Active:0  GPU:0
Adapter#:4  ID:-1813689984  Name:"AMD Radeon HD 6900 Series"  Active:1  GPU:1
Adapter#:8  ID:-1672753856  Name:"AMD Radeon HD 6900 Series"  Active:0  GPU:2

C:\Program Files\clocktweak>clocktweak.exe -a all -c950 -m450 -v1200 -y
===============================================================================
                ClockTweak v0.7.4b - bitcoinX.com/clocktweak/
===============================================================================

Set values - starting.
 Adapter #0:
  setting core speed: 950 [MHz]
ERROR: write_values: core speed 950 could not be set (1): False

C:\Program Files\clocktweak>

Afterburner is able to set my clocks to 950 but I'm getting the error above with clocktweak.
Would love to have this work, but if not:
1Q1e8TGZPeZKbtjJHD951mcgGtdpqj55DB

Cheers.

[phelix]

btw is there any way to make the changes permanent ?

what do you mean by permanent?

you can write a batch file and put a link to it in the autostart folder so that it runs at every startup. put each call to clocktweak into its own line and maybe add a "pause" command on the last line so that you can read the results.

[phelix]

Afterburner is able to set my clocks to 950 but I'm getting the error above with clocktweak.
Would love to have this work, but if not:
1Q1e8TGZPeZKbtjJHD951mcgGtdpqj55DB

Cheers.

sent. fyi: you are running into the BIOS limit. if nothing else helps check out RBE

[TeaRex]

With ClockTweak I'm seemingly able to underlock my Radeon HD 6990's memory all the way down to 1 MHz. Reading back, the same value comes out. I kind of doubt that the hardware actually supports running at 1 MHz Commodore 64 speed though... And I don't seem to get any noticeable temperature drop either. So how do I find out how much I can REALLY underclock. MSI Afterburner let me go to only ca. 100 to 120 MHz below core speed (exact number depended on core speed), below that the display would show the stock 1250 MHz again. Still I got no temperature drop to speak of... and I've seen other people talk about underclocking to 300 MHz or even to 159 MHz.

So... how do I find out how low I can actually go? Or does anybody around here know how low you can clock a 6990?

My System: Windows 7 SP1 64-bit (fairly fresh installation but with all Windows Updates applied), Core2Quad 2.83 GHz,  one HD 6990, Catalyst 11.6, Phoenix miner (SVN version 103) running from source on 64-bit Python 2.7.2.

Thank you for any help!

[phelix]

With ClockTweak I'm seemingly able to underlock my Radeon HD 6990's memory all the way down to 1 MHz. Reading back, the same value comes out. I kind of doubt that the hardware actually supports running at 1 MHz Commodore 64 speed though... And I don't seem to get any noticeable temperature drop either. So how do I find out how much I can REALLY underclock. MSI Afterburner let me go to only ca. 100 to 120 MHz below core speed (exact number depended on core speed), below that the display would show the stock 1250 MHz again. Still I got no temperature drop to speak of... and I've seen other people talk about underclocking to 300 MHz or even to 159 MHz.

So... how do I find out how low I can actually go? Or does anybody around here know how low you can clock a 6990?

My System: Windows 7 SP1 64-bit (fairly fresh installation but with all Windows Updates applied), Core2Quad 2.83 GHz,  one HD 6990, Catalyst 11.6, Phoenix miner (SVN version 103) running from source on 64-bit Python 2.7.2.

Thank you for any help!

1Mhz - LOL. If clocktweak does not complain and can even read it back it means the driver accepted it. But it seems the

What happened to the hashrate?

did you try to check with another tool like GPU-Z?

[phelix]

version v0.8.0b and update released

new: fan control

[2weiX]

hi,

I am running three VGA Sapphire Radeon HD 6950, 1GB GDDR5 (non-reference,obv).
I've been able to overclock the GPUs to 840 and am getting 330mHash/s with a couple of flags I cannot replicate from the top of my head AND a fan angled at the cards from zero distance, temp is ~75C.

I was, however, to this point NOT able to downclock the memory. I tried Afterburner, Trixx, BarelyClocked... nothing.

In your introductory post it says that the 6950 is supported. Might my model be an exception?
If you think your little prog could make this work, I'd love to buy it.

[phelix]

hi,

I am running three VGA Sapphire Radeon HD 6950, 1GB GDDR5 (non-reference,obv).
I've been able to overclock the GPUs to 840 and am getting 330mHash/s with a couple of flags I cannot replicate from the top of my head AND a fan angled at the cards from zero distance, temp is ~75C.

I was, however, to this point NOT able to downclock the memory. I tried Afterburner, Trixx, BarelyClocked... nothing.

In your introductory post it says that the 6950 is supported. Might my model be an exception?
If you think your little prog could make this work, I'd love to buy it.

I am optimistic it will work. otherwise refund.

[botnet]

I have two 5830 saphire extremes. 

1) Can only OC one card, either with "-a all" or specifically putting the adapter and using -f
2) Can't OC past 900mhz.   MSI afterburner allows this.

Please help?
http://i53.tinypic.com/35n3dip.png

13V14L6Xxt15Pn5Ev3gYAqdirWzYNHRnvc

[ananas5]

I wish someone would make a similar tool for Ubuntu. At least a tool for overvolting.

[phelix]

My command line knowledge is rusty so forgive me but am getting these errors when running:

Traceback (most recent call last):
File "C:\Python26\lib\site-packages\py2exe\boot_common.py", line 92, in <module>
ImportError: No module named linecache
Traceback (most recent call last):
ImportError: No module named zipextimporter
Traceback (most recent call last):
File "clocktweak.py", line 15, in <module>
ImportError: No module named argparse

Please advise.

what system are you running on? do you have python installed?