Go Back   Hardware Canucks > PC BUILDERS & TWEAKERS CORNER > Guides & How-to's

    
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old October 18, 2010, 06:37 PM
Top Prospect
F@H
 
Join Date: May 2010
Location: Toronto
Posts: 78
Default Guide: Unlock Gtx 460 Voltage Cap

Hey guys this is a simple guide on how to remove the 1.087V voltage cap on your gtx 460 allowing you to push the voltage all the way to 1.212V to help achieve the overclock you want. I just did it using this exact method so i thought i would share.

First off i assembled a package of software you will need.
GPU Z 4.7
nvFlash 5.95
Nibitor 5.8

Download Here


1.
Acquire your bios with GPUz and it's save to file feature:


2. Open the bios file with Nibitor:
go to Tools> fermi Voltage and select the max voltage you want from drop down.



Hit apply and save the new bios under C:\ as mod.rom

3. Copy the contents of nvflash folder to C:\

4. open cmd with admin privileges

5. type cd / this will take you to root of c directory

6. type nvflash -b backup.rom (this backs up your original firmware)

7.Type nvflash -5 -6 mod.rom (this flashes the bios)

8. it will ask you if you are sure press y to continue

9. DONE enjoy your 1.212 voltage cap





I DO NOT TAKE RESPONSIBILITY FOR YOUR ACTIONS.... USE THIS GUIDE AT YOUR OWN RISK
__________________

i7 920 D0 @ 4ghz
Custum WC Loop
Asus P6X58D-E
6 Gb Corsair 1333
EVGA 760 GTX
NZXT Phantom

Last edited by MikeFallen; October 18, 2010 at 07:57 PM.
Reply With Quote
  #2 (permalink)  
Old October 18, 2010, 06:41 PM
Arinoth's Avatar
Moderator
F@H
 
Join Date: May 2009
Location: Halifax
Posts: 8,589

My System Specs

Default

Does this only work for the 460s? Wouldnt mind my 465 unlocked and flashed with 470 bios to have a higher core voltage as im maxed at 1087mV right now
Reply With Quote
  #3 (permalink)  
Old October 18, 2010, 06:46 PM
lowfat's Avatar
Moderator
 
Join Date: Feb 2007
Location: Grande Prairie, AB
Posts: 7,980

My System Specs

Default

I just got other people to mod the bioses for me

Not sure if it would work w/ the GTX465/GTX470. It wouldn't hurt to check though.
Reply With Quote
  #4 (permalink)  
Old October 18, 2010, 07:04 PM
Hall Of Fame
F@H
 
Join Date: Feb 2010
Location: Markham
Posts: 1,569

My System Specs

Default

Quote:
Originally Posted by Arinoth View Post
Does this only work for the 460s? Wouldnt mind my 465 unlocked and flashed with 470 bios to have a higher core voltage as im maxed at 1087mV right now
It's just a bios flash, there's a bunch of bios' out there with higher voltage caps for all the higher end Fermis. If you have an EVGA card, a while back they released a free bios update for most of their Fermis with higher voltage caps and better stock fan profiles. Otherwise you'd be doing so at your own risk.
__________________
Reply With Quote
  #5 (permalink)  
Old October 18, 2010, 07:30 PM
Top Prospect
F@H
 
Join Date: May 2010
Location: Toronto
Posts: 78
Default

This technically SHOULD work with all 400 series cards as long as it is supported by Nibitor which currently all are except the 450 i think


save your bios and check out what you can edit with nibitor....cant harm anything by reading the bios and opening it up.
__________________

i7 920 D0 @ 4ghz
Custum WC Loop
Asus P6X58D-E
6 Gb Corsair 1333
EVGA 760 GTX
NZXT Phantom
Reply With Quote
  #6 (permalink)  
Old October 18, 2010, 07:30 PM
Arinoth's Avatar
Moderator
F@H
 
Join Date: May 2009
Location: Halifax
Posts: 8,589

My System Specs

Default

Yeah i got that elusive MSI 465 unlocked to a 470, i guess i should look into it as the vcore is rather low. Thought i'd ask anyone if they knew before i went hunting. Its bed time so i'll try this tomorrow, maybe
Reply With Quote
  #7 (permalink)  
Old October 18, 2010, 07:53 PM
Sagath's Avatar
Hall Of Fame
F@H
 
Join Date: Feb 2009
Location: Petawawa, ON
Posts: 2,509

My System Specs

Default

Thanks for posting this for the masses, but can you fix that last pic? Its kinda ugly in size
__________________
Quote:
Originally Posted by Lpfan4ever View Post
AKG shot the hamsters, and then Perineum drove his Mustang with summer tires into the server.
My Disclaimer to any advice or comment I make;
Quote:
Originally Posted by CroSsFiRe2009 View Post
I'm a self certified whizbang repair technician with 20 years of professional bullshit so I don't know what I'm talking about
Reply With Quote
  #8 (permalink)  
Old October 18, 2010, 07:55 PM
Top Prospect
F@H
 
Join Date: May 2010
Location: Toronto
Posts: 78
Default

Sure sometimes i forget not everyone has 1900x1200 monitors XD
__________________

i7 920 D0 @ 4ghz
Custum WC Loop
Asus P6X58D-E
6 Gb Corsair 1333
EVGA 760 GTX
NZXT Phantom
Reply With Quote
  #9 (permalink)  
Old October 19, 2010, 03:37 PM
Arinoth's Avatar
Moderator
F@H
 
Join Date: May 2009
Location: Halifax
Posts: 8,589

My System Specs

Default

Just did this with my 465/470 and was able to unlock the voltage to the max allowed. Thanks for the guide, had no problems following any of it.

Reply With Quote
  #10 (permalink)  
Old October 19, 2010, 03:44 PM
geokilla's Avatar
Hall Of Fame
F@H
 
Join Date: Aug 2008
Location: Toronto
Posts: 3,625

My System Specs

Default

How's the overclocks with these additional voltage?
__________________
Reply With Quote
Reply


Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
NVIDIA GeForce GTX 460 1GB & GTX 460 768MB Review Comment Thread SKYMTL Video Cards 126 August 20, 2010 10:01 AM
Possible to Unlock GTX 465 to GTX 470 geokilla Video Cards 3 July 18, 2010 08:36 PM
AMD High C/P PC Reference - 3x 785G models Unlock Cores and OC to 300Mhz Guide windwithme Member Reviews 11 March 25, 2010 02:17 PM