I recently bought a couple of used Nvidia (manuf) GTX 1080ti Founders Edition GPUs from a student at MIT (cheap!) - $730 the pair. They appear to be in excellent condition, and, testing them in various ways, they seem to run as expected.
I am testing them in SETI on an ASUS Rampage IV Extreme MB (i7-4930K CPU).
Running with a GTX 750ti which I had laying around for video output, as the 1080tis only have HDMI and DP outs (no DVI).

GPU-Z says it's a GTX 1080ti, with BIOS version 86.02.39.00.01, GPU Clock 1481, Boost 1582, 3584 shaders.

CPU-Z confirms GTX 1080ti.

The card is running at 1840MHz or so (SIV64, which also ids the 750 ti, but not the 1080tis, although it does see them).
They run around 75-80C in this configuration, card fans around 1900rpm or so.

If I run Precision X (4.2.1 - yes, I know it is old, but it sees my 1080s on another machine as "GTX 1080") and with a little fiddling with the fan curve, they run at the same speed (1840) but temps are down below 60C (fans up to 3500rpm or so) BUT the cards are listed as "GP102-A", rather than "GTX 1080ti".

Does this indicate the BIOS has been modified for mining?

I need to know in order to return them, as I don't want to flash the cards back to standard BIOS.

Thanks in advance for your help!

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According to this, it's the same, https://www.techpowerup.com/vgabios/190928/nvidia-gtx1080ti-11264-170118

in general you cannot modify the BIOS of nvidia Pascal GPUs. it would be very unlikely that you would get one with a modified BIOS as not many people have the ability to do it themselves. There are not freely available tools that will properly modify the BIOS and have it still be recognized by the drivers. I only ever changed the BIOS on a Pascal card once. and that was a BIOS update provided by EVGA to update the memory speeds. even this isn't very common.

the only BIOS "modification" that is possible on Pascal cards for the purpose of mining is for the GDDR5X cards (1080/1080ti/TitanXp). but this is not a full reflash. This works by injecting changes to the card real-time, and they do not survive a reboot. Apparently you could do the same thing for nvidia GDDR5 cards, but the software is not freely available like it is for GDDR5X cards.

AMD cards on the other hand are easy to reflash and tools for modifying them are freely available. Much higher chance to get an AMD card that has had the BIOS reflashed from mining.

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Seti@Home classic workunits: 29,492 CPU time: 134,419 hours

The "GP102-A" indicates it is a superclocked or binned die. The stock die would just have been GP102.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Thank you all for the info.

They put my mind (such as it is) at ease.

Any further comments are welcome.

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