Theory: Upgrade 128Mbit (non-MAX sku) board to 256Mbit (MAX sku) board

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rotomu

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for that those should be fine, but for mas production it really should be keyed to prevent plugging it in upside down
we could improvise my have the attached pcb hit the pci-e slot if you try to plug it in upside down
 

Chike

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Not a problem to pull thepin out and stick some toothpick in lol
The BIOS is at different locaton on each board, it might actually be hard not to hit the pci-e slot and I don't know if its the same chip on all of them and the socket + connector + pcb may already be too high.
I ordered https://www.ebay.com/itm/10pcs-Pitch-2-0mm-2mm-2x6-Pin-12-Pin-Female-Double-Row-Straight-Pin-Header-Strip/253140096075 will take it probably a month to get here.
I don't know what my chips though and my programmer is 3.3v, maybe i can just connect the 3.3v to the battery +
Board (dead) is Z87-G43
 

rotomu

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Since the onboard rom uses 1.8v for the chip you need to use a 1.8v chip for the addon board so the board can power it and a 1.8v chip will not take kindly to 3.3v, i'm sure there is a reason MSI is using 1.8v ROM chips, im sure if they could have used the same chips for both AMD and Intel they would have
 

rotomu

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Look at the model on the BIOS chip once you google it the spec sheet will tell you the voltage
or you can use a multimeter and check the voltage going into the chip
if it uses 3.3v you can just use a raspberry pi, link to that thread in the 1st post
 

darkhawk

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Flashcat Pro : https://www.embeddedcomputers.net/products/FlashcatUSB_Pro/

Supports 1.8V-5V SPI programming of EEPROM's. 

For what it's worth, I've done A TON of testing with the CH341A's, and they generally will work with 3.3V boards just fine....but even using adapters you can't get them to work with 1.8V EEPROM's. 
I've programmed Z270, Z97, and a number of other boards with the CH341A, but with Ryzen boards most of them were 1.8V, and required something like the Flashcat Pro.

Could also use an Arduino, honestly, if you're smart enough. But....I'd stick to something pre-made to do it.

Also see : https://forum-en.msi.com/index.php?threads/288150

Something I put together a bit over a year ago about doing some of what you're discussing.
 

rotomu

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Wow that is expensive, i wonder if you can plug the chip into the board if we can use the board to flash it
there is probably a safty to be sure you are using the correct bios on the correct board, but i think flashback will probably allow it
 

Chike

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evilkitty date=1564837849 said:
Wow that is expensive, i wonder if you can plug the chip into the board if we can use the board to flash it
there is probably a safty to be sure you are using the correct bios on the correct board, but i think flashback will probably allow it
Perhaps the forum flush tool too?
 

rotomu

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Possibly
To make sure we can flash the alt chip using the board i think we should flash a different version of a supported BIOS and make sure it wrote to the correct chip and ONLY the correct chip, cause bricking the main bios would suck unless you have a flashback board to fix it
 

antonsuhy

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I know that this was a while ago already but I wanted to know if any progress was made. This topic is very interesting to me and I would like to see how I might be able to contribute to more discovery.

I just bought a used MSI X470 Gaming Plus that has not be flashed to be able to use 3000 series processors. Since I do not own a previous gen Ryzen and I plan on running a 3600 on it, I am forced to manually flash the chip with a programmer. I have experience with a CH341a programmer and working with BIOS chips. I don?t have a 3.3v to 1.8v adapter at the moment so I will be ordering one of those as well.

I plan to flash the board to the latest version and then make sure everything is functional. At that point, I am thinking about buying another identical spi flash rom, flashing a different version to it and wiring it to the header pins manually, then shorting pin 9 to ground and seeing if it boots up with the auxiliary chip instead.

I agree with the previous post that the Winbond W25Q256JW appears to be the closest compatible 32MB chip as it is the same voltage, clock speed and function set as the factory 16MB chip. I plan to buy one and flash it with the 16MB bin that is made for the board and see if it runs when wired into the header pins. If it then does, I will flash it with the MAX equivalent board bin and see what that does.

Does that sound reasonable? Is that the route this was heading in? I would appreciate any feedback, even if its that you don?t think it will work. To be honest, I haven?t looked to see what other features the MAX boards have that are different than the normal boards. Obviously if there are differences, it is doubtful this would work because the hardware is different and the MAX software likely wouldn?t function correctly.
 

rotomu

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the only difference in the max variation of a board is the bios chip and the color scheme, so if you were to program the same bios chip that is on the max board and wire it up to the board it should just work
EDIT: the max and X570 board seem to use a Macronix MX25U25673G (8-WSON) chip I'm not sure if the brand matters for this part
 

flobelix

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Yes, this thread is old... a year old. please don't resurrect it.

:floblock:
 
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