Jump to content

Overclock graphic card with Clover

overclock graphic gpu vbios clover

  • Please log in to reply
9 replies to this topic

#1
shiecldk

shiecldk

    InsanelyMac Geek

  • Members
  • PipPipPipPip
  • 233 posts
  • Gender:Male
  • Location:Taiwan

Firstly, we need to know our GPU clock. For example, my ASUS EAH6850 is running at 790MHz.

 

Secondly, convert 79000 to hex, which is 0x13498. While in the vbios, it's actually 98 34 01.

If I want to get a 850MHz clock, I gonna convert 85000 to hex, which is 0x14C08 and 08 4c 01 in vbios.

 

Last, use Clover's PatchVBiosBytes to find 98 34 01 and replace it with 08 4c 01. And all done!

 

 

Unfortunately, I'm not able to boot my current Windows 8 with Clover now.

But I'm guessing simply reinstall graphic driver or Windows could bypass the problem. Because I'm able to boot Windows Install DVD through Clover.

 

These are the results to prove it works ;) :

 

Spoiler



#2
ScarletCrimson

ScarletCrimson

    InsanelyMac Protégé

  • Members
  • Pip
  • 11 posts

Thanks for the guide.
 
Here's how to use PatchVBiosBytes:

 

http://clover-wiki.z...cs#Inject-/-ATI
 

Also, can you please copy and paste the data from your config.plist file here?



#3
shiecldk

shiecldk

    InsanelyMac Geek

  • Members
  • PipPipPipPip
  • 233 posts
  • Gender:Male
  • Location:Taiwan
<dict>
	<key>Find</key>
	<data>
	mDQB
	</data>
	<key>Replace</key>
	<data>
	CEwB
        </data>
</dict>

imIiNp4.png

You need to create yours, instead of copying mine.



#4
ScarletCrimson

ScarletCrimson

    InsanelyMac Protégé

  • Members
  • Pip
  • 11 posts
<dict>
	<key>Find</key>
	<data>
	mDQB
	</data>
	<key>Replace</key>
	<data>
	CEwB
        </data>
</dict>

imIiNp4.png

You need to create yours, instead of copying mine.

 

I know, I just needed to know which data type you were using. Now I know it's Data. I was using String.

 

Thanks, appreciate your help! :)



#5
Alex Auditore

Alex Auditore

    InsanelyMac Legend

  • Donators
  • 698 posts
  • Gender:Male

Hi, shiecldk.

And what about memory clock. Should I do the same action?



#6
shiecldk

shiecldk

    InsanelyMac Geek

  • Members
  • PipPipPipPip
  • 233 posts
  • Gender:Male
  • Location:Taiwan

Hi, shiecldk.

And what about memory clock. Should I do the same action?

I'm not sure about memory clock now, but I did tried to OC the memory clock too.

What I did was using RBE to edit my VBios first and compared the difference with original VBios in HexEdit. And last, input the PatchVBiosBytes value to Clover.

My 6850's normal memory clock is 1000(mhz)x4 which is something like 0x186a0 and "a0 86 01" in VBios if I remember it correctly. After using RBE to increase the VBios's memory clock to 1100, "a0 86 01" become "b0 ad 01" in Vbios.



#7
Alex Auditore

Alex Auditore

    InsanelyMac Legend

  • Donators
  • 698 posts
  • Gender:Male

I'm not sure about memory clock now, but I did tried to OC the memory clock too.

What I did was using RBE to edit my VBios first and compared the difference with original VBios in HexEdit. And last, input the PatchVBiosBytes value to Clover.

My 6850's normal memory clock is 1000(mhz)x4 which is something like 0x186a0 and "a0 86 01" in VBios if I remember it correctly. After using RBE to increase the VBios's memory clock to 1100, "a0 86 01" become "b0 ad 01" in Vbios.

Year, Thanks for your answer. Could you help me to change memory clock from 800 to 928MHz at this place?

Attached File  Screen Shot 2013-12-13 at 15.53.57.png   400.88KB   3 downloads

I also attached almost-modified Vbios.

EDIT1

Wait a minute! I have to check something.

Attached Files



#8
Alex Auditore

Alex Auditore

    InsanelyMac Legend

  • Donators
  • 698 posts
  • Gender:Male
Ok. Made an overclocking with new frequencies by DSDT. I see some artifacts on Ungine Valley. So I decided to use default frequencies on Mac
Because I have no graphics-demanding programs on Mac unlike Windows.

#9
Cruzed

Cruzed

    InsanelyMac Protégé

  • Members
  • Pip
  • 10 posts
  • Gender:Male
  • Location:Santa Clarita, CA
  • Interests:Computer Networking Systems

Hello I need help overclocking my graphics card its a PNY GeForce 210 1GB here are the specs

 

Product Specifications

  • Core Clock (MHz): 475 MHz
  • Processor Cores: 24
  • Processor Clock (MHz): 1100 MHz
  • Fill Rate (billion pixels/sec.): 5.7
  • Memory Amount: 1024MB DDR2 On-board Frame Buffer
  • Memory Frequency (effective): 800 MHz
  • Memory Interface: 128-bit
  • Memory Bandwidth (GB/sec): 12.8
  • On-board Outputs: DVI-I and HDMI and VGA
  • Additional Outputs Supported:
  • BUS Technology: PCI Express 2.0

 

venid = 10DE devid = 0A65 so the device is 10DE:0A65



#10
shiecldk

shiecldk

    InsanelyMac Geek

  • Members
  • PipPipPipPip
  • 233 posts
  • Gender:Male
  • Location:Taiwan

Guys, I found a useful topic right here. I guess this will fit your needs in the future.







Also tagged with one or more of these keywords: overclock, graphic, gpu, vbios, clover


0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

© 2014 InsanelyMac  |   News  |   Forum  |   Downloads  |   OSx86 Wiki  |   Mac Netbook  |   PHP hosting by CatN  |   Designed by Ed Gain  |   Logo by irfan  |   Privacy Policy