@ntbrown01

cooking up food and electronics

 Indiana
Joined November 2022
  • Tweets13.5K
  • Following1.5K
  • Followers856
1KMedia
I think people are going to like this.
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xitter.cf/PalmerLuckey/status/21…
porkychop@porkychopgames5h
Replying to @ntbrown01 @Hushkadush @grok @KushPatil_
Are they making every component here down to the circuits on the motherboards because Ford makes trucks here but there parts come from overseas so unless they are digging up there own gold for there motherboards its that same thing we've had and doesn't support what your saying
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Nate Brown retweeted
Nate Brown
@ntbrown01Oct 26
Replying to @wholemars
Sounds like Lord of the rings tbh
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“BlueChip laptops will be manufactured in the United States, with circuit board assembly planned for Anduril's Arsenal-1 facility in Ohio.” 🔥
Anduril Industries
@anduriltech8h
BlueChip. Built in America. America made the first electronic computer to win a war. Now we depend on our greatest adversaries to build the computers that run our economy and defend our nation. Today, we bring it home.
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Nate Brown retweeted
Elon Musk
@elonmusk19h
Replying to @SenAlexPadilla
Investigate your wiener
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New PC build. It’s not sota but it’s fast enough coming from an M1 iMac 16GB! • Ryzen 9 5950X + 64GB DDR4 + 1TB NVME • RTX 5060 Ti 16GB (primary) & RTX A4000 16GB
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WOW IT'S FIXED! 🎉 The Supermicro M12SWA-TF (WRX80) wouldn't boot with any of my Blackwell GPUs: RTX 5060 Ti or RTX Pro 6000. It was just stuck in a boot loop giving code 91. It's a BIOS MMIO placement bug, and it's fixable from Linux. Technical thread:👇
Nate Brown
@ntbrown01Oct 25
Opus is now in redfish watching the boot codes... this is serious. "...then I spot 0xB6 (Clean-up of NVRAM) appearing [...] That 0xB6 right before a reset back to early SEC/PEI codes strongly suggests the system is resetting immediately after PCI enumeration completes..."
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@Supermicro
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Upping this bounty to $100. XMoney only sorry, for safety. I'll deliver if you lead to a fix. Confirmed, the M12SWA-TF gets to POST code 91, and reboots. Happens with a RTX 5060 Ti 16GB and also an RTX 6000 Pro. Then I put in a Radeon 6600XT and it boots, no prob.
Nate Brown
@ntbrown01Oct 24
If your tip leads to solving my problem, I'll XMoney you $50. I have a brand new M12SWA-TF and I can't get it to POST with a GPU installed. Its on bios 2.4a, 2500W PSU, tried 1-2 RTX Pro 6000, and a RTX 5060 Ti. I pull the cards and it boots linux (I can see thru BMC).
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Bounty program over, problem solved. It’s a BIOS bug.
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So this fix is really hard to capture into a tweet so I apologize and will try to find a place to publish it. What the script does: 1. Reads the BIOS's saved PCIe window sizes (ResourceSizeForEachRb EFI var) 2. Finds the GPU's entry (the one with 64MB alignment) 3. Backs up the original 4. Sets it to 128MB, which always fits an aligned 64MB BAR 5. Writes it back in one shot and verifies
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How to run it: 1. Unplug the GPU's power and boot Linux. 2. Run sudo python3 rb_fix.py. The GPU's entry is the one with align 0x3ffffff; set ENTRY to it. 3. Run sudo python3 rb_fix.py --write. 4. Plug the GPU's power back in and reboot.
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Symptom: POST retries about every 70s. POST codes via the BMC show PCI enumeration (0x94/0x95) but it reboots before resource assignment (0x96). Cause: the BIOS sizes each PCIe root bridge's 32-bit MMIO window correctly but doesn't align its start. Blackwell's BAR0 is 64MB and needs 64MB alignment.
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Opus is now in redfish watching the boot codes... this is serious. "...then I spot 0xB6 (Clean-up of NVRAM) appearing [...] That 0xB6 right before a reset back to early SEC/PEI codes strongly suggests the system is resetting immediately after PCI enumeration completes..."
Nate Brown
@ntbrown01Oct 25
Replying to @ntbrown01
Come on! This is real money. I now have Opus 5.5 remotely driving the bios over the BMC console. It’s got a plan.
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Come on! This is real money. I now have Opus 5.5 remotely driving the bios over the BMC console. It’s got a plan.
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If your tip leads to solving my problem, I'll XMoney you $50. I have a brand new M12SWA-TF and I can't get it to POST with a GPU installed. Its on bios 2.4a, 2500W PSU, tried 1-2 RTX Pro 6000, and a RTX 5060 Ti. I pull the cards and it boots linux (I can see thru BMC).
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Clarification, I didn't try all 3 cards at once, those are the types of cards I've tried. So it proves it's not the card itself. Both are Blackwell but different power and VRAM. Tried all the basics like 4G Decoding, BAR, Secure Boot, OPROM.
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I wanted to build RemiFM's design, but to shave some costs, I wanted to go from 6 to 4-layers, bring all parts to the top, expose more GPIO, and panelize. So I used my PCB assistant form to help get this done very quickly. github.com/RemiFM/USB-LiDAR-…
Nate Brown
@ntbrown01Oct 22
Replying to @ntbrown01
I’m going to order this board, work out a few bugs with the app(s), and then open source it.
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I can get 2 panels, with 4 boards each, populated with everything except for the LiDAR module ($50/ea) and the MCU (not in stock at JLC). But I can get the MCU for $2 at DigiKey and do that on my hot plate. This is all for fun and prototyping!
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I was able to export the Gerber files, BOM, and CPL right from the interface and within about an hour I had the board reworked, panelized, and files uploaded and quoted by JLCPCB.
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This is incredible. You can just make nice tools and do things.
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I’m going to order this board, work out a few bugs with the app(s), and then open source it.
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Both the software and the board!
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