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GTX660 startup

Thomaspin

Thomaspin

macrumors member
Original poster
Jun 27, 2013
39
1
Silicon Valley, CA
My (new to me) Mac Pro 8-core 2009, 2 x 2.26GHz has inherited the Zotac GTX660 card from my Hackintosh.

The card works well but displays the issue noted elsewhere on this forum, namely that there is no Apple splash screen at start, which would make a fresh OS install difficult. I have retained the stock GT120 if ever needed for that purpose. Further, the common temperature utilities fail to report GPU temperature, something they do fine with the stock card.

My question is: Is it possible to flash the ROM of the GTX660 to work around this issue?

My Unigine score is attached if it is of interest:
 

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fouel

macrumors member
May 14, 2008
68
1
Thomaspin said:
My (new to me) Mac Pro 8-core 2009, 2 x 2.26GHz has inherited the Zotac GTX660 card from my Hackintosh.

The card works well but displays the issue noted elsewhere on this forum, namely that there is no Apple splash screen at start, which would make a fresh OS install difficult. I have retained the stock GT120 if ever needed for that purpose. Further, the common temperature utilities fail to report GPU temperature, something they do fine with the stock card.

My question is: Is it possible to flash the ROM of the GTX660 to work around this issue?

My Unigine score is attached if it is of interest:
Click to expand...
It is possible to flash the rom ot GTX 660.
But please post the original rom first.
 
Thomaspin

Thomaspin

macrumors member
Original poster
Jun 27, 2013
39
1
Silicon Valley, CA
Thank you.

I updated from 4,1 to 5,1 and the red in the attachment is my current ROM for the Mac Pro.

The GTX660 ROM is in the second attachment.
 

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Last edited:
F

fouel

macrumors member
May 14, 2008
68
1
Thomaspin said:
Thank you.

I updated from 4,1 to 5,1 and the red in the attachment is my current ROM for the Mac Pro.

The GTX660 ROM is in the second attachment.
Click to expand...
What you attached is not what I want.
Never mind.
The GTX 660 works fine on your mac pro now, don't it ?
 
F

fouel

macrumors member
May 14, 2008
68
1
Thomaspin said:
Sorry, I do not have Windows. Is there any workaround to get you what you need?
Click to expand...
That's OK.
Please send me the picture of card.
I could find the rom on the techPowerUP website.
If I post the modded rom, how do you flash it into your card ?
Flashing card needs a PC with windows system.
 
Thomaspin

Thomaspin

macrumors member
Original poster
Jun 27, 2013
39
1
Silicon Valley, CA
A picture is attached, together with the predecessor 9800GTX+.

If that is not sharp enough I can take the card out of the Mac Pro and try and make a better one.

The card is a standard 2GB Zotac nVidia GTX660. There is no specific model number on the box or in the instructions other than 'GTX660'.

As for the Windows dilemma, I will get access to a machine with Windows.

Thank you.
 

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666sheep

666sheep

macrumors 68040
Dec 7, 2009
3,686
291
Poland
Bumping isn't allowed on MR ;)
MVC is on vacation until 8 Jul AFAIK.
Contact him directly via PM or his eBay shop.

Another thing that came into my head: does GTX 660 have 256K chip needed for Nvidia EFI ROM?
 
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