ASUS PRIME B350M-A [unlocked BIOS] v5406

[jSON]

Here's another, ''I AM NOT LIABLE IF YOU END UP BRICKING YOUR MOTHERBOARD'' have fun ;P

Many more added options compared to my last 5220 bios unlock, screenshots of all additions ---> here. <---

Latest BIOS as of 05-07-2020 - ASUS B350M-A 5406
- More corrected in UI, cause OCD
- Enabled LAN MAC Address on the MAIN page, useful to me at least

--CHANGES IN AI TWEAKER--
- Now shows SB Clock Spread Spectrum (Disabled by Default)
- Enabled BCLK Frequency edit (100 Default - 90 to 300 scale)
- Enabled FCLK Frequency edit (Auto Default)
- Enabled APU Multiplier, for those on APUs..
- Enabled NB Frequency edit
- Enabled GFX Core Voltage edit, again for APU users.
- Enabled VDDG CCD and IOD Voltage Control (I assume these are Zen 2/Ryzen 3000 specific)
- Enabled EPU Power Saving Mode (Disabled by Default)
- Enabled GPU Boost, another one for APU users.
- Enabled Precision Boost Overdrive
- Enabled TDP Configuration
- Enabled VDDP Voltage edit

--CHANGES IN DRAM TIMING CONTROL--
- Enabled the following;
Memory OC
DRAM COMMAND Mode
DRAM Row Cycle Time
DRAM Read to PRE Time
DRAM REF Cycle Time
MEMCLK Drive Strength
Txs
Tref
Tmod
Trcpage
Tzqcs
Tzqoper
Tstag
Tvrefdq
Ddllk
Data Drive Strength
DQS Drive Strength
Processor On-Die Termination
CKE Setup Time
CKE Fine Delay
CS/ODT Setup Time
CS/ODT Fine Delay
Address/Command Setup Time
Address/Command Fine Delay
CLDO VDDP Voltage
Memory P-State
+++MANY OTHERS TO LIST+++

--CHANGES TO PBO--
- Enabled edit of PPT - TDC - EDC Limits

--CHANGES TO ADVANCED--
- Enabled CPU Configuration
- Enabled ACPI Settings
- Enabled Chipset Common Options
- Enabled SATA Configuration
- Enabled Onboard Devices Configuration
- Enabled APM Configuration
- Enabled PCI Subsystem Settings

--CHANGES TO CPU CONFIGURATION--
- Enabled PSS Support Config
- Enabled P-State Adjustment
- Enabled PPC Adjustment

--CHANGES TO ON-BOARD DEVICE CONFIG--
- Enabled CPU PCIe Lanes Unlocked (Disabled by Default)
- Enabled PCIeX16 Bandwidth Configuration (Only 8X or M.2 Raid)
- Serial Port now DISABLED by Default
- Enabled PCI Devices Common Settings
- Enabled Asmedia USB 3.1 Battery Charging Support

--CHANGES TO QFAN CONFIGURATION--
- Enabled Allow Fan Stop (Disabled by Default)

--CHANGES TO BOOT--
- Enabled toggle of PS/2 Device Support

----> DOWNLOAD <---- Google Drive
----> ALT. LINK <---- ASUS WEBSTORAGE

 

[intelvtd]

Please add SLIC 2.5 from Dell or Fujitsu.
One question: is this possible for an option to switch between 2 sata port and M.2 PCIe x4 that connected to cpu?
thanks.

 

[pv2b]

Wow, I literally just randomly stumbled upon this when looking for something completely different. What are the odds of that, just happening to run into a modded bios for your specific motherboard! I didn't even know modded BIOS was a thing for this motherboard.

Anyway, this looks really cool. Thanks!

That, or I get to brick this motherboard and have an excuse to buy something with decent VRMs instead. (Hmm, maybe I should wait for B550 motherboards to be purchasable before taking that plunge.)

I'm going to be putting a 3800X into this motherboard in a few days, having control over FCLK, VDDG voltages, and being able to enable PBO looks really cool.

Just a couple of questions:

What about BankGroupSwitch though? I think this is also not available in the stock BIOS.
"Enabled CPU PCIe Lanes Unlocked" What is this? Is this so you can try running PCIe Gen4 on this board, or is this something else?

Also, I think you have the wrong sharing settings on your Google Drive links, it asks me to "get permission" from you to download. Downloading from ASUS WebStorage worked fine though.

 

[intelvtd]

Is there an option to switch between m.2 and 2 sata port from cpu?
In asus documents it says m.2 share bandwidth with sata 5,6 but when i insert nvme ssd on m.2 port the hdd or ssd connected to port 5,6 disappeared .
I think a bios option must be exist for this.
thanks.

 

[jSON]

Wow, I literally just randomly stumbled upon this when looking for something completely different. What are the odds of that, just happening to run into a modded bios for your specific motherboard! I didn't even know modded BIOS was a thing for this motherboard.

Anyway, this looks really cool. Thanks!

That, or I get to brick this motherboard and have an excuse to buy something with decent VRMs instead. (Hmm, maybe I should wait for B550 motherboards to be purchasable before taking that plunge.)

I'm going to be putting a 3800X into this motherboard in a few days, having control over FCLK, VDDG voltages, and being able to enable PBO looks really cool.

Just a couple of questions:

What about BankGroupSwitch though? I think this is also not available in the stock BIOS.
"Enabled CPU PCIe Lanes Unlocked" What is this? Is this so you can try running PCIe Gen4 on this board, or is this something else?

Also, I think you have the wrong sharing settings on your Google Drive links, it asks me to "get permission" from you to download. Downloading from ASUS WebStorage worked fine though.

- Actually picked up an ASUS B550-F now that you mention it, good so far.
- I *think* BGS is referring to you having either single rank or dual rank dimms, with SR dimms it won't make much difference... and also why you may not see it at all.
- "Enabled CPU PCIe Lanes Unlocked" may be referring to pcie4 though I honestly never got a chance to test it specifically since the ''support'' for it was removed in a previous rev.

Is there an option to switch between m.2 and 2 sata port from cpu?
In asus documents it says m.2 share bandwidth with sata 5,6 but when i insert nvme ssd on m.2 port the hdd or ssd connected to port 5,6 disappeared .
I think a bios option must be exist for this.
thanks.

- To my knowlege, sharing bandwidth to that extent is controlled by the chipset directly, as in you can't rewire the lanes via software.
- As far as adding SLIC to the BIOS, I'd need extra hardware now, as I moved to B550 yesterday. I can't make myself take apart my build now... so RGB

Corrected the sharing perms for the GDrive link as well.

 

[jisahph]

....

Hi jSON,

I hear people saying how B350 and B450 boards are the same except chipset etc.

My question is have you ever tried installing B450M-A BIOS into B350M-A?

Thanks

 

[jSON]

Hi jSON,

I hear people saying how B350 and B450 boards are the same except chipset etc.

My question is have you ever tried installing B450M-A BIOS into B350M-A?

Thanks

Would like to think the different tags here prevent it from ever being possible, though you can force it to take whatever rom you throw at it if you wanted. I just wouldn't

 

[jisahph]

Hi,

Is there an option for choosing between x2 and x4 lanes for M.2 port?