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need some help editing Bios for 680Mx on iMac

post #1 of 16
Thread Starter 
having problem reading/writing eeprom on 680mx card. tried nvflash for dos and GPU-Z for Win7.

both leave me with unknown eeprom error.

any suggestions, please?
post #2 of 16
Thread Starter 
anyone know if native EFI install of Win7 can help to solve this. it is really a pain to do it, really want to be sure its possible before i go there,
post #3 of 16
Don't edit it dude... Why are you trying to edit the chip? Apple has used an eprom chip which prevents you from editing the chip to begin with. eprom is a write once read many chip.

http://en.wikipedia.org/wiki/EPROM
 
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Gsvlip Dudyrm
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post #4 of 16
Thread Starter 
where did you get the info that apple used eprom instead of normal eeprom wich has been successfully edited before almost on any other nvidia card?
post #5 of 16
I work for an AASP and have direct access to apple's technical support staff.
 
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Gsvlip Dudyrm
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Oda'maksv
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post #6 of 16
Thread Starter 
thanks!
post #7 of 16
Thread Starter 
do you know why sometimes i get 1000uV voltage when running some apps, slightly more than stock. is it possible to fix this voltage?
post #8 of 16
I just want to save you from aggravation because what you are doing isn't going to work. Apple ALWAYS has their stuff modified from their original forms.

And I do not and it is not a big deal. It likely has something to do with Aero under windows wanting to use the GPU Regardless, Apple has put extensive R&D into their product and have made so that the machine itself will work as reliable as possible. Leave it be. If you want to mod bios on something that is modible and also cost's 1/3 of what you have now, build yourself a gaming machine and flash the bios all you want on that. Once you flash the bios on the chip, you will void your warranty on your machine. The cards in those machines are about 600 bucks a pop.
Edited by Lord Xeb - 6/9/13 at 2:25pm
 
Gsvlip Dudyrm
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Gsvlip Dudyrm
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Oda'maksv
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post #9 of 16
Thread Starter 
but what about it randomly striking 1000uv voltage. and if it is possible to force it?

the idea of a gaming PC seems more and more reasonable though.
post #10 of 16
1v on a video card is very small and don't worry about. My cards will occasional spike to 100% then back down again when launching applications, areo does some kind of flushing in the background, or an application needs a quick bit of processing from the card. The random spikes to 1v (which 1000 micro volts is 1v) isn't going to hurt he chip. A 680MX is a GTX 680 with lower clock speeds and tuned for lower power and heat output. The card itself has something called Boost on it along with multiple power and clock stages. The card will boost to a higher clock domain if need be depending on the load and clock speeds will fluctuate depending on loads given to that you cannot control. The cards are designed to have fluctuating voltages and clock speeds.
 
Gsvlip Dudyrm
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Oda'maksv
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CPUMotherboardGraphicsRAM
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Gsvlip Dudyrm
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Oda'maksv
(9 items)
 
CPUMotherboardGraphicsRAM
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Windows 10 Asus MG279Q - 24" 144Hz 1080p Filco Majestic II w/ Cherry Reds Seasonic X 760W 
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CPUMotherboardGraphicsRAM
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Samsung 830 Evo 128GB 2x 2TB  Some DVD drive OSX 10.10.4 
MonitorPowerCaseMouse
Asus 1080P Crap TX 750 HAF 922 G400s 
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Apple Keyboard Xbox One controler 
CPURAMHard DriveHard Drive
C2D 2,26GHz under volted @ .978v 8GB  Crucial M4 64GB SSD 500GB Scorpio Black 
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