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Zeht

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  1. Zeht
    Ah thats unfortunate, I think the video outputs don't work because the vbios is from a laptop which has a soldered gpu and probably outputs video from the igpu. I have another idea, which is to reduce the tdp of your original vbios using Pascal TDP Tweaker and then flash it with an external programmer, such as CH341A (make sure you get the 1,8V adapter, otherwise you'll fry your vbios chip). The process of modding the vbios is quite straightforward, flashing it with the programmer is the challenging part but it can be done with some patience.
  2. Zeht
    Aside from trying using one of the modded versions of nvflash I can't think of anything else to do, if you manage to find anothe vbios it will probably have the same error when trying to flash.
  3. Zeht
    You could try, I think that the worst scenario would be that the card doesn't output video, in that case simply flash the old vbios back using the igpu. I'm not sure if you can override the error with regular nvflash though, that's why I mentioned those modified versions in the previous reply.
  4. Zeht
    You can try using nvflashk or omgvflash
  5. Zeht
    I found one that allegedly comes from a Thinkpad X1 Extreme (source). Inspecting it with Pascal TDP Tweaker shows that its max power is 20W, which seems very low. You could try it and see how it performs, make sure to backup. nvidia.rom
  6. Zeht
    You could try flashing a max-q vbios. To be safe make sure to enable nvidia optimus, just in case the card doesn't output video after flashing it.
  7. Zeht
    Dumb question but is optimus/switchable graphics enabled in bios?, if it already is then unfortunately I got no clue
  8. Zeht
    Check out this video, its in spanish but should be pretty straightforward
  9. Zeht
    From what I've seen it depends on the vbios, on some the boost clock is way higher than whats advertised. On this zbook my card would normally boost to 1500-1550mhz in order to match 75W. Now I'm using a quadro rtx 3000 on a dell precision 7540 and I've seen it boost up to 1700mhz, despite the boost clock being 1380mhz.
  10. Zeht
    Well case closed, I'll get a battery soon. Thanks a lot for your time, I really appreciate it.
  11. Zeht
    Yesterday I tried repasting since I noticed the cpu vrm would get into the 70°s (Dell EC temp1 in hwinfo). I change the thermal pad for a slightly thicker one and now it stays in the 60°s but the issue persists. I'd really appreciate if someone could do the tests without battery, I'm going crazy with this laptop
  12. Zeht
    Well I tried flashing a 65W max-q vbios but it kinda bricked the laptop, it would boot into windows but as soon as the login screen appeared the screen would turn black. I had to use the safe mode to flash the original vbios and it's working back again. Before getting a battery I want to make sure it will fix the issue. Could anyone with a precision 7540 unplug their battery and run a gpu+cpu stress test?, I want to see if the cpu throttling behavior is normal in this machine or if mine is faulty.
  13. Zeht
    When I bought the laptop the seller said that he removed the battery due to "Communication error". I'm afraid that ths embedded controller might be faulty and a new battery will either not work or the issue with power throttling might continue. I updated to the latest 1.30.0 bios and the problem persists, undervolt seems to still be working. I'm tired of this machine, later I will try flashing the maxq vbios and see if it fixes anything.
  14. Zeht
    I'm using a 180W adapter, unfortunately I can't get a 240W. Either way I think 180W should be more than enough, the quadro takes around 80W and the cpu 45W. If updating the bios doesn't work I will try flashing the max-q version vbios, which has a 60W tgp if I recall correctly.
  15. Zeht
    It may be. I bought the machine from ebay a few weeks back, I'm not from the US so I imported it to my country, meaning that I can't return it now. So, I'm stuck with this laptop since I sold my old zbook 15 g2. I was going to get a battery eventually but now I'm not sure, I would have to spend $100 to get it into my country and the laptop may continue performing like crap.
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