GTX 460 1gb (GV-N460OC-1GI) - voltage question

[Wiedadde]

Hello

I'm running 2 GTX 460 1gb in SLI. When examining the details of both cards with 'Nvidia inspector' (tab overclocking), i notice that one card is running at 1.012V, while the other runs at 1.000V. Is this normal or is one of the cards malfunctioning?

Thanks in advance



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Specs:
Asus P5p77 ws supercomputer
Intel I5 680 @3.60
2x Gigabyte GTX 460 1gb oc
8gb DDR3 Ram (1333 Mhz)
2x Barracuda 7200.11 1tb (Raid0)
Chieftec psu 850w

[Dark Mantis]

Hi

How have you got the cards connected to the power supply unit ?

If they are on seperate 12v rails (assuming your PSU has seperate rails) it might be a slight discrepancy between the two outputs. If you PSU is of a single 12v rail type then obviously that couldn't be the answer.

How are you measuring the input voltage ?

[Wiedadde]

Hi

I'm not measuring the voltage input, but i'm rather looking at the bios settings of the card through the 'Nvidia inspector' utility.
In the 'overclocking' tab, i can change core clocks, voltage etc.

I just noticed that one card is set at 1.000V, while the other is set at 1.012V. While i can change this value with Nvidia inspector, changes aren't saved when rebooting. Maybe i should flash my card?

[Dark Mantis]

Are both cards using the same firmware ? If not that could be a reason.  You could update them both anyway assuming there is a newer version available.

[Wiedadde]

Used Easy Boost to determine the Bios version: both have the same version (FZ0)
Used Nvidia Inspector: both have the same version as well, but description is different: 70.04.1B.00.02

I already tried to flash the bios of both cards using the bios file of a GV-N460OC-1GI, but to no avail! Getting the error 'version mismatch'.
I'm certain it's a GV-N460OC-1GI (no revision), still have the boxes on the attic.

Tried flashing the card with Easy Boost and @Bios.



Maybe i can backup the bios of one of the cards and use it to flash the other? If only i knew the correct/standard voltage for a GV-N460OC-1GI...

Thanks for your help btw!

[Wiedadde]

So...

I tried again flashing both cards...

Using Easy Boost:
- Tried autoflash: it tells me  there is an update (version F3). Flashing card results in message 'Flash bios file fail!'
- Tried manual flashing using it's own back-up file: message 'Flash bios file fail!'

Using @Bios:
- Downloaded F3 version for the card from Gigabyte and tried flashing: error message 'The BIOS version not match!!!'
-Tried flashing using its own backup: message 'Bios version is the same' -> nothing happens

Seriously, what do i have to do to get this Bios flashed
This is mind boggling!