downgrade bios version

Yes the asrock send a tool like jz tool.i think to keep that frequency at 3133, I don't want to tease it anymore or to do more experiments with ram.i have see already difference on fps with this frequency and im ok.anyway thank you especially you Ray62 for the support and tips, i'll hear your opinion and i keep p1.80 version.thank you so much

ok so i made it,im on p1.80 bios version now with the help of asrock but the problem remains.but now the stable frequency is 3133mhz.thats good.bellow i quote the timings




MEMORY MODULE
Manufacturer
Corsair
Series
Vengeance LPX
Part Number
CMK16GX4M2B3200C16
Serial Number
00000000h
JEDEC DIMM Label
8GB 1Rx8 PC4-2133P-UA0-10
Architecture
DDR4 SDRAM UDIMM
Speed Grade
DDR4-2133P downbin
Capacity
8 GB (8 components)
Organization
1024M x64 (1 rank)
Register Model
N/A
Manufacturing Date
Undefined
Manufacturing Location
Taiwan
Revision / Raw Card
0000h / A0 (8 layers)
DRAM COMPONENTS
Manufacturer
Samsung
Part Number
K4A8G085WB-BCPB
Package
Standard Monolithic 78-ball FBGA
Die Density / Count
8 Gb B-die (Boltzmann / 20 nm) / 1 die
Composition
1024Mb x8 (64Mb x8 x 16 banks)
Clock Frequency
1067 MHz (0,938 ns)
Minimum Timing Delays
15-15-15-36-50
Read Latencies Supported
16T, 15T, 14T, 13T, 12T, 11T, 10T...
Supply Voltage
1,20 V
XMP Certified
1600 MHz / 16-18-18-36-54 / 1,35 V
XMP Extreme
Not programmed
SPD Revision
1.0 / January 2014
XMP Revision
2.0 / December 2013
FREQUENCY CAS RCD RP RAS RC FAW RRDS RRDL CCDL
1067 MHz 16 15 15 36 50 23 4 6 6
1067 MHz 15 15 15 36 50 23 4 6 6
933 MHz 14 13 14 31 44 20 4 5 5
933 MHz 13 13 14 31 44 20 4 5 5
800 MHz 12 11 12 27 38 17 3 5 5
800 MHz 11 11 12 27 38 17 3 5 5
667 MHz 10 9 10 22 31 14 3 4 4
667 MHz 9 9 10 22 31 14 3 4 4
FREQUENCY CAS RCD RP RAS RC FAW RRDS RRDL
1600 MHz 16 18 18 36 54 36 6 9
Version: 16.0.1.0 Build 1014

You also can lower the DRAM frequency. Just try it one frequency step lower.

Keep the SOC voltage on default, just increase the DRAM voltage a bit.

If the DRAM calculator is too difficult, you anyway should use the Thaiphoon burner to read out the config data of your ram and post it here.

lazosv9 wrote: Ray62 i think the file in description on video dont have for b450 boards.where i can find this flash tool?

As i already posted: The video just shows the procedure which you have to understand! It's the same for all boards.

I already posted the link to one flash tool.
I don't know a link for your specific board and bios.
The tool itself is always the same for each board, but you have to modify the ini file and the ROM image according to your board and bios version.

Anyway, if this is to complicated for you, don't do it this way.

Ask the Asrock support for a downgrade tool for your board.

Ray62 i think the file in description on video dont have for b450 boards.where i can find this flash tool?