manualmanual about frequencies editing (somehow I can't translate it with google translate, try at your own if needed).
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Matthew
EDIT--- Translation below:
16.05.2013 22:06
How to edit the frequency and to change the limit increase frequencies in the AMD Radeon bios HD7 series.
Despite the fact that the way to challenge the Radeon bios frequency did not change for several generations and has long been available on the Internet, by popular request, describe it again.
Radeon graphics cards can work in a variety of modes: 2D, 3D, 3D Boost (not all maps) and more staging (for example, video playback).
The full list of shows for example AIDA64
---------------------------------------------------------------------------
BIOS PowerPlay State #0:
- Level #0: GPUClock = 1000 MHz, MemClock = 1125 MHz, VID = fused 1 (Boot)
BIOS PowerPlay State #1:
- Level #0: GPUClock = 300 MHz, MemClock = 300 MHz, VID = 0.900 V
- Level #1: GPUClock = 400 MHz, MemClock = 1125 MHz, VID = 0.950 V
- Level #2: GPUClock = 1000 MHz, MemClock = 1125 MHz, VID = fused 1
BIOS PowerPlay State #2:
- Level #0: GPUClock = 400 MHz, MemClock = 1125 MHz, VID = 0.950 V (UVD)
- Level #1: GPUClock = 400 MHz, MemClock = 1125 MHz, VID = 0.950 V (UVD)
- Level #2: GPUClock = 1000 MHz, MemClock = 1125 MHz, VID = fused 1 (UVD)
BIOS PowerPlay State #3:
- Level #0: GPUClock = 300 MHz, MemClock = 300 MHz, VID = 0.900 V
- Level #1: GPUClock = 300 MHz, MemClock = 300 MHz, VID = 0.900 V
- Level #2: GPUClock = 300 MHz, MemClock = 300 MHz, VID = 0.900 V
-----------------------------------------------------------------------------
Modes (at least of those that can be edited) are specified as a sequence of eight bytes:/3 bytes/core frequency 3 bytes of memory frequency/voltage/byte 2
For example, for 3D mode this sequence: A0 01 86 74 01 01 FF B7, which means/1000 MHz core/memory 1125MGc/3D/voltage
As one turns to the other? showing by example:
1000 MHz kernel multiply by the hundred = 100000, translate into a hexadecimal format = > 100000 186A0h, turn the "backwards" 186A0h = > A0 01 86.
And here is an example in the opposite direction:
74 B7 01 turn the "backwards" = > 1B774h, converting to decimal format 1B774h = > 112500, divide by 100 = 1125MGc memory
01 FF is -1 (minus one) this is an indication of voltage for "normal" 3D mode, 3D mode Boost worth 02 FF (minus two), for all other modes of voltage is set explicitly, for example 30 75 30 0000 0000 75 84 03 /300MGc is/300MGc//900mV
Thus, if you want to change the frequency for a certain mode in the bios:
-know the value of the default frequencies
-translate them according to the above algorithm
-We are looking for a sequence of six bytes (3 bytes of kernel/3 bytes of memory)
-decide on what frequencies are to change
-translate them according to the above algorithm
-replace the bytes by default to those calculated
That's all as far as editing of frequencies. Personally, I have worked to edit 3D mode frequency, but here is a 2D mode frequency, somehow not diminished (voltage also did not want to be changed)
Now on the marginal frequencies acceleration.
As you know, default, the Radeon in the CCC limit increasing frequencies is heavily restricted. Often, this limit is smaller than the video card capabilities. This limit can be bypassed using the CCC, and not e.g. Sapphire Trixx where without any body movement can be set very high frequencies. Either one run MSI Afterburner with a key/xcl and after a reboot in the CCC will also exhibit very high frequencies.
And you can edit the bios since this limit is specified in it. It is a sequence of seven bytes:/3 bytes limit frequency cores/0000 (zero byte)/3 bytes of the memory frequency limit/
So to change the limit in the bios:
-learn in CCC limit frequency
-take the three byte values according to the above algorithm
-Search bios sequence of seven bytes (remember to add the 0000 in the middle)
-change at will (according to the algorithm)
For example, in my bios from HD 7770 limit was 1300/1300, I found a string of D0 FB 01 0000 D0 01 and replaced by FB 88 84 02 0000 AB 98 02 which gave the limit/1650 1750
