├── LICENSE ├── README.md ├── dumps ├── 2133_11_12_13_34_2T.emp ├── 2133_11_12_13_34_2T.emp.2020-02-20.xmp ├── 2200-11-12-12-24-standard.xmp ├── 2400_x230_record.emp ├── 2400_x230_record.emp.2020-03-02.xmp ├── dimm0x50.2020-02-21.spd ├── dimm0x50.2020-03-13.spd ├── dimm0x50.2020-03-13.xmp ├── dimm0x50.2020-06-02-hynixbfr.spd ├── dimm0x51.2020-06-02-hynixbfr.spd ├── gskill-1866c11-hynixbfr.spd ├── hynixafr.spd ├── hynixbfr1333.spd ├── hynixbfr1600.spd ├── hynixmfr.spd ├── nanya-8gb-r2x8-1600c11.spd ├── nanya-8gb-r2x8-2133c11.spd └── sammyD-2gbit.2020-02-21.spd ├── emp2xmp.sh ├── gui.py ├── readspd.py ├── readspd.sh ├── writespd.py └── writespd.sh /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # overclockSPD 2 | Fast and easy ways to read and write data to RAM SPD. 3 | _\*will also include a gui for overclocking ram_ 4 | 5 | These are scripts that provide linux users with tools to easily modify data (timings, voltages, configuration...) 6 | from multiple sticks of RAM. Other tools currently out there such as Taiphoon Burner, TB2BIN, RWEVERYTHING... only run on Windows. (which is unfortunate) 7 | 8 | ***It can also convert .emp files (created by Thaiphoon Burner) into .xmp files.*** 9 | 10 | 11 | Directly inspired by the man who created the amazing tb2bin tool: [Valuxin](http://forum.notebookreview.com/members/valuxin.400286/) 12 | 13 | Shoutout to xx (or \x) from r/tp discord for helping me out. He is the man when it comes to RAM OC 14 | 15 | [Background info on RAMOC and TB2BIN](http://forum.notebookreview.com/threads/guide-how-to-overclock-and-change-timings-for-any-ram-on-most-laptops.805589/) 16 | 17 | [Another overclock guide by Zak Kemble](https://blog.zakkemble.net/modifying-ram-spd-data/) 18 | 19 | DISCLAIMER 20 | ------------------------------------------------ 21 | ``` 22 | DISCLAIMER: This "overclockSPD" is provided by baboomerang (the writer & provider of this software)\ 23 | "as is" and "with all faults." baboomerang (the writer & provider of this software)\ 24 | makes no representations or warranties of any kind concerning the safety,\ 25 | suitability, lack of viruses, inaccuracies, typographical errors, or other harmful\ 26 | components of this "overclockSPD". There are inherent dangers in the use of any software,\ 27 | and you are solely responsible for determining whether this "overclockSPD" is compatible \ 28 | with your equipment and other software installed on your equipment. You are also solely \ 29 | responsible for the protection of your equipment and backup of your data, and\ 30 | baboomerang (the writer & provider of this software) will not be liable for any damages\ 31 | you may suffer in connection with using, modifying, or distributing this "overclockSPD" or any part of it. 32 | ``` 33 | WARNING: WRITING TO NON-DIMM LOCATIONS CAN CAUSE DAMAGE/BRICKS. HAVE CAUTION BEFORE WRITING ANY DATA THROUGH THE SMBUS 34 | -------------------------------------------------- 35 | 36 | #### Install 37 | ###### You need to have ***i2c_dev***, ***i2c_i801*** and ***eeprom*** modules loaded. Also make sure the ***i2c-tools*** package is installed. 38 | ``` 39 | sudo pacman -S i2c-tools 40 | sudo modprobe i2c_i801 41 | sudo modprobe i2c_dev 42 | ``` 43 | Usually `i2c_i801` is loaded by default on Arch. It is included here incase it isn't for your distro. 44 | 45 | 46 | ### Usage 47 | 48 | ``` 49 | Usage: sudo ./readspd.sh [-x]xmp [-b busaddr] [-d dimaddr <0x##>] # only reads 1 target at a time 50 | sudo ./writespd.sh [-x]xmponly [-b busaddr#] [-d dimaddr <0x##>] [FILE] # only writes 1 target at a time 51 | sudo python readspd.py -x -b -d # only reads 1 target at a time 52 | sudo python writespd.py -x -b -d -f # only writes 1 target at a time 53 | 54 | ``` 55 | Results will be saved in the current working directory. Check if there is write access to it otherwise the scripts will fail. 56 | 57 | **Examples** 58 | ``` 59 | ./readspd.sh -b 9 -d 0x50 60 | ./writespd.sh -b 9 -d 0x50 ./ocdumpprofile.spd 61 | python readspd.py -b 9 -d 0x50 62 | python writespd.py -b 9 -d 0x50 -f ./ocdumpprofile.spd 63 | ``` 64 | *OUTPUT*: 65 | ``` 66 | $ ls 67 | dimm0x50.spd dimm0x51.spd dimm0x52.spd dimm0x53.spd 68 | ``` 69 | DUMPED CONTENT 70 | -------------------------------------------------------------------------------- 71 | ``` 72 | $ xxd dimm0x50.2020-02-20.spd 73 | 00000000: 9211 0b03 0421 0209 0311 0108 0900 fe00 .....!.......... 74 | 00000010: 5f78 5f28 5f11 106f 2008 3c3c 00c8 8305 _x_(_..o .<<.... 75 | 00000020: 0000 ca97 9797 9700 0000 0000 0000 0000 ................ 76 | 00000030: 0000 0000 0000 0000 0000 0000 0f11 0500 ................ 77 | 00000040: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 78 | 00000050: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 79 | 00000060: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 80 | 00000070: 0000 0000 0004 cd00 0000 0000 0000 3366 ..............3f 81 | 00000080: 4633 2d31 3836 3643 3131 2d38 4752 534c F3-1866C11-8GRSL 82 | 00000090: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 83 | 000000a0: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 84 | 000000b0: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 85 | 000000c0: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 86 | 000000d0: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 87 | 000000e0: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 88 | 000000f0: ff00 0000 0000 0000 0000 0000 0000 0000 ................ 89 | ``` 90 | *EMP FILE CONTENTS* (Made by Thaiphoon Burner) 91 | 92 | ``` 93 | $ xxd 2133_11_12_13_34_2T.emp 94 | 00000000: 0558 4d50 3133 0001 0e2a 0d8f 82aa 9cd2 .XMP13...*...... 95 | 00000010: 4669 0000 001a fc03 be01 6c02 6e00 380e Fi........l.n.8. 96 | 00000020: 5e01 6900 0011 0800 0000 0000 0000 0000 ^.i............. 97 | 00000030: 0000 0000 .... 98 | ``` 99 | *CONVERTED EMP TO XMP CONTENTS* (Made by emp2xmp) 100 | 101 | ``` 102 | $ xxd 2133_11_12_13_34_2T.emp.2020-02-20.xmp 103 | 00000000: 0c4a 0513 010e 0000 112a 0d8f fc03 82aa .J.......*...... 104 | 00000010: 9cd2 21be 6c6e 0038 0e69 4600 5e69 0000 ..!.ln.8.iF.^i.. 105 | 00000020: 1a00 0008 0000 0000 ........ 106 | ``` 107 | 108 | TROUBLESHOOTING 109 | -------------------------------------------------------------------------------- 110 | If you get an error similar to: 111 | ``` 112 | Error: Could not set address to 0x50: Device or resource busy 113 | ``` 114 | 115 | Try unloading the at24 module with: 116 | ``` 117 | modprobe -r at24 118 | ``` 119 | -------------------------------------------------------------------------------- /dumps/2133_11_12_13_34_2T.emp: -------------------------------------------------------------------------------- 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-------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | #TODO: make this script posix compliant. 4 | 5 | usage() { 6 | echo "Usage: $0 EMPFILE" 1>&2; 7 | echo "Example: $0 sample_dump.emp" 8 | exit 1; 9 | } 10 | 11 | main() { 12 | if [ $# -lt 1 ]; then 13 | usage 14 | fi 15 | 16 | EMPFILE=$1 17 | 18 | if [ ! -f $EMPFILE ]; then 19 | echo "Not a valid emp file!" 20 | usage 21 | fi 22 | 23 | #all of the EMPFILE is stored into the first element of the RAWHEX array. 24 | RAWHEX=$(xxd ${EMPFILE} -p -c 256 | tr -d '\n' | sed -e 's/../& /g') 25 | ARRAYHEX=($RAWHEX) 26 | 27 | HEXFILELEN=${#ARRAYHEX[@]} 28 | 29 | if [ ${HEXFILELEN} != 52 ]; then 30 | echo "EMP File size must be 52 bytes!" 31 | exit 1 32 | fi 33 | 34 | DATE=$(date +%Y-%m-%d) 35 | CONVERTEDFILE="${1}.${DATE}.xmp" 36 | echo "" | tr -d '\n' > "${CONVERTEDFILE}" 37 | 38 | if [ $? -ne 0 ]; then 39 | echo "Error writing new file. Check file/folder permissions and try again" 40 | exit 1 41 | fi 42 | 43 | echo "Creating file and writing header" 44 | printf "\x0c" >> ${CONVERTEDFILE} #xmp magic number 45 | printf "\x4a" >> ${CONVERTEDFILE} #xmp magic number 46 | printf "\x05" >> ${CONVERTEDFILE} 47 | 48 | # the 3rd bit in every XMP profile depends on the system ram config 49 | # you can configure it to your liking with the description of the byte below 50 | # 1 byte = 0000 0000 (8 bits) 51 | # 00 | 00 00 | 0 0 52 | # reserved | prfl2 dimmsPerchannel prfl1 dimmsPerchnl | profile2 profile1 53 | # result: 0x05 = 0000 0101 54 | # so profile 1 enabled 55 | # and 2 dimms per channel 56 | 57 | echo "${ARRAYHEX[@]}" 58 | XMPMAJORVERSION=${ARRAYHEX[4]} #31 -> 1 59 | XMPMAJORVERSION=${XMPMAJORVERSION:1:1} 60 | 61 | XMPMINORVERSION=${ARRAYHEX[5]} #33 -> 3 62 | XMPMINORVERSION=${XMPMINORVERSION:1:1} 63 | #0x13 -> file 64 | printf "\x${XMPMAJORVERSION}${XMPMINORVERSION}" >> ${CONVERTEDFILE} 65 | 66 | printf "\x${ARRAYHEX[7]}" >> ${CONVERTEDFILE} #xmp profile 1 MTB dividend 67 | printf "\x${ARRAYHEX[8]}" >> ${CONVERTEDFILE} #xmp profile 1 MTB divisor 68 | printf "\x00" >> ${CONVERTEDFILE} #xmp profile 2 MTB dividend 69 | printf "\x00" >> ${CONVERTEDFILE} #xmp profile 2 MTB divisor 70 | printf "\x${ARRAYHEX[37]}" >> ${CONVERTEDFILE} #reserved byte 71 | printf "\x${ARRAYHEX[9]}" >> ${CONVERTEDFILE} #DIMM VOLTAGE (usually has no effect) 72 | printf "\x${ARRAYHEX[10]}" >> ${CONVERTEDFILE} #tCK minimum 73 | printf "\x${ARRAYHEX[11]}" >> ${CONVERTEDFILE} #tAA minimum 74 | printf "\x${ARRAYHEX[22]}" >> ${CONVERTEDFILE} #CAS (list of supported latencies) 75 | printf "\x${ARRAYHEX[23]}" >> ${CONVERTEDFILE} #CAS (list of supported latencies) 76 | printf "\x${ARRAYHEX[12]}" >> ${CONVERTEDFILE} #tcWL minimum 77 | printf "\x${ARRAYHEX[13]}" >> ${CONVERTEDFILE} #tRP minimum 78 | printf "\x${ARRAYHEX[14]}" >> ${CONVERTEDFILE} #tRCD minimum 79 | printf "\x${ARRAYHEX[15]}" >> ${CONVERTEDFILE} #tWR minimum 80 | 81 | # in the ddr3 spec, these nibbles should be reversed 82 | # i.e. it should be 0x01 then 0x02 83 | # but instead this script will preserve what tb2bin does 84 | 85 | UPPERtRASNIBBLE=${ARRAYHEX[27]} # 02 -> 2 86 | UPPERtRASNIBBLE=${UPPERtRASNIBBLE:1:1} 87 | 88 | UPPERtRCNIBBLE=${ARRAYHEX[25]} # 01 -> 1 89 | UPPERtRCNIBBLE=${UPPERtRCNIBBLE:1:1} 90 | # 0x21 -> file 91 | printf "\x${UPPERtRASNIBBLE}${UPPERtRCNIBBLE}" >> ${CONVERTEDFILE} 92 | 93 | printf "\x${ARRAYHEX[24]}" >> ${CONVERTEDFILE} #tRAS minimum #byte 195 94 | printf "\x${ARRAYHEX[26]}" >> ${CONVERTEDFILE} #tRC minimum 95 | printf "\x${ARRAYHEX[28]}" >> ${CONVERTEDFILE} #tREFI max lower byte 96 | printf "\x${ARRAYHEX[29]}" >> ${CONVERTEDFILE} #tREFI max upper byte 97 | printf "\x${ARRAYHEX[30]}" >> ${CONVERTEDFILE} #tRFC min lower byte 98 | printf "\x${ARRAYHEX[31]}" >> ${CONVERTEDFILE} #tRFC min upper byte 99 | printf "\x${ARRAYHEX[34]}" >> ${CONVERTEDFILE} #tRTP min 100 | printf "\x${ARRAYHEX[16]}" >> ${CONVERTEDFILE} #tRRD min 101 | printf "\x00" >> ${CONVERTEDFILE} #28th byte skipped -ZEROED 102 | printf "\x${ARRAYHEX[32]}" >> ${CONVERTEDFILE} #tFAW min upper nibble 103 | printf "\x${ARRAYHEX[17]}" >> ${CONVERTEDFILE} #tFAW min byte 104 | printf "\x00" >> ${CONVERTEDFILE} #31st byte skipped -ZEROED 105 | printf "\x00" >> ${CONVERTEDFILE} #32nd byte skipped -ZEROED 106 | printf "\x${ARRAYHEX[21]}" >> ${CONVERTEDFILE} #tWTR min #byte 205 107 | printf "\x00" >> ${CONVERTEDFILE} #34th byte skipped -ZEROED 108 | printf "\x${ARRAYHEX[36]}" >> ${CONVERTEDFILE} #CMD-turnaround adjustment 109 | printf "\x${ARRAYHEX[38]}" >> ${CONVERTEDFILE} #SYSTEM CMD ratemode byte208 110 | printf "\x${ARRAYHEX[39]}" >> ${CONVERTEDFILE} #SDRAM autoself refresh byte209 111 | printf "\x${ARRAYHEX[40]}" >> ${CONVERTEDFILE} #byte 210 [reserved] 112 | printf "\x${ARRAYHEX[41]}" >> ${CONVERTEDFILE} #byte 211 [reserved] magic#? 113 | printf "\x${ARRAYHEX[42]}" >> ${CONVERTEDFILE} #byte 212 [reserved] 114 | echo "Converted file written to ${CONVERTEDFILE}" 115 | } 116 | 117 | main "$@" 118 | -------------------------------------------------------------------------------- /gui.py: -------------------------------------------------------------------------------- 1 | import curses 2 | from curses import wrapper 3 | 4 | s = curses.initscr() 5 | sh, sw = s.getmaxyx() 6 | curses.noecho() 7 | curses.cbreak() 8 | 9 | menu = ['Edit SPD/XMP dump', 'Read SPD/XMP from RAM', 'Write SPD/XMP to RAM'] 10 | 11 | def print_menu(scr, key_value): 12 | scr.clear() 13 | 14 | for row_index, row in enumerate(menu): 15 | x = sw//2 - len(row)//2 16 | y = sh//2 - len(menu)//2 + row_index 17 | 18 | if row_index == key_value: 19 | scr.attron(curses.color_pair(1)) 20 | scr.addstr(y, x, row) 21 | scr.attroff(curses.color_pair(1)) 22 | else: 23 | scr.addstr(y, x, row) 24 | 25 | scr.refresh() 26 | 27 | def flashspd(): 28 | i = 0 29 | test = "string" 30 | 31 | def readspd(): 32 | i = 1 33 | test2 = "string" 34 | 35 | def viewspd(): 36 | #this part will include a built in viewer of the hex and description for each 37 | #value of the word 38 | i = 2; 39 | 40 | def main(s): 41 | curses.curs_set(0) 42 | curses.init_pair(1, curses.COLOR_BLACK, curses.COLOR_WHITE) 43 | 44 | w = curses.newwin(sh, sw, 0, 0) 45 | w.attron(curses.color_pair(1)) 46 | w.keypad(True) 47 | 48 | key = 0 49 | index = 0 50 | print_menu(w, index) 51 | 52 | while True: 53 | key = w.getch() 54 | w.clear() 55 | 56 | if key == curses.KEY_UP and index > 0: 57 | index -= 1; 58 | elif key == curses.KEY_DOWN and index < (len(menu) - 1): 59 | index += 1; 60 | elif key == curses.KEY_ENTER or key in [10, 13]: 61 | w.box(0,0) 62 | w.addstr(0, 5, "You pressed {}".format(menu[index])) 63 | w.refresh() 64 | w.getch() 65 | 66 | print_menu(w, index) 67 | w.refresh() 68 | 69 | 70 | curses.nocbreak() 71 | s.keypad(False) 72 | curses.echo() 73 | curses.endwin() 74 | 75 | wrapper(main) #used for debug purposes only 76 | 77 | #if __name__ == "__main__": 78 | # main(s) 79 | 80 | -------------------------------------------------------------------------------- /readspd.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | 3 | """ 4 | readspd.py It runs a shell command on the selected bus address and dumps the data 5 | from the smbus 6 | 7 | This readspd.py software is provided "as-is" with no warranty, implied or not. 8 | By using this script you agree to proceed at your own risk. 9 | """ 10 | 11 | #TODO: implement a way to dump xmp profile 2 and let the user choose either XMP1 or 2 12 | 13 | import getopt 14 | import os 15 | import subprocess 16 | import sys 17 | from datetime import date 18 | 19 | def main(argv): 20 | if os.getuid(): 21 | print("Please run as root.") 22 | sys.exit(1) 23 | 24 | try: 25 | opts, args = getopt.getopt(argv, "b:d:hx", ["bus=", "dimm=", "help", "xmp"]) 26 | except getopt.GetoptError: 27 | print(sys.argv[0], '-x -b -d ') 28 | sys.exit(1) 29 | 30 | xmp = False #its False by default unless the flag is given 31 | 32 | for opt, arg in opts: 33 | print("arg: {} opt: {}".format(arg, opt)) 34 | if opt in("-h", "--help"): 35 | print(sys.argv[0], '-x -b -d ') 36 | print("-x --xmp | read only from xmp region") 37 | print("-b --bus (i.e. 0,1,2,3...)") 38 | print("-d --dimm (i.e. 0x50,0x21,0x4A)") 39 | sys.exit(0) 40 | elif opt in ("-x", "--xmp"): 41 | xmp = True 42 | elif opt in ("-b", "--bus"): 43 | bus = arg 44 | elif opt in ("-d", "--dimm"): 45 | dimm = arg 46 | 47 | readspd(bus, dimm, xmp) 48 | 49 | def readspd(busaddr, dimmaddr, xmpmode): 50 | if not os.access('./', os.W_OK): 51 | print('Cannot write dump to current directory. Check file/folder permissions') 52 | sys.exit(1) 53 | else: 54 | print('WARNING! This program can confuse your I2C bus, cause data loss and worse!') 55 | print('I will read from device file /dev/i2c-{}, chip address {}, \ 56 | reading in bytes'.format(busaddr, dimmaddr)) 57 | print('') 58 | ans = input('Accept the risks and proceed? (yes/y/N/No): ').lower() 59 | 60 | if ans in ['yes', 'y']: 61 | today = date.today() 62 | todaysdate = today.strftime("%Y-%m-%d") 63 | 64 | if xmpmode: 65 | start = 176 66 | end = 220 67 | ext = "xmp" 68 | else: 69 | start = 0 70 | end = 256 71 | ext = "spd" 72 | 73 | spddump = open("dimm{}.{}.{}".format(dimmaddr, todaysdate, ext), 'wb') 74 | print("Reading....") 75 | for index in range(start, end): 76 | i2cproc = subprocess.Popen(['i2cget', '-y', str(busaddr), str(dimmaddr), \ 77 | str(index)], stdout=subprocess.PIPE, stderr=subprocess.PIPE) 78 | output, err = i2cproc.communicate() 79 | output = output[2:].decode() #strip '0x' and convert to str 80 | output = bytes.fromhex(output) #convert hexstr to 'bytes' type 81 | print(output, end=' ') 82 | spddump.write(output) 83 | 84 | print("Dump written to: ./dimm{}.{}.{}".format(dimmaddr, todaysdate, ext)) 85 | 86 | else: 87 | print('User did not type yes/y/Y. No changes have been made. Exiting') 88 | sys.exit(1) 89 | 90 | if __name__ == "__main__": 91 | main(sys.argv[1:]) 92 | -------------------------------------------------------------------------------- /readspd.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | # Project: readspd - a RAM SPD reading tool similar to TB2BIN 4 | # Author: baboomerang https://github.com/baboomerang/ 5 | # Date: 02/15/2020 6 | 7 | # READSPD.sh =============================================================== 8 | # Make sure i2c_dev, i2c_i801, i2c_algo_bit are loaded. 9 | # This should read the spd data of the RAM (255 bytes) and write it to a file named 10 | # dimm{hex-address}.spd in the current PWD 11 | 12 | #< "$filename" 119 | 120 | if [ $? -ne 0 ]; then 121 | echo "Error writing file. Check file/folder permissions and try again." 122 | exit 1 123 | fi 124 | 125 | while [ ${index} -le ${end} ]; do 126 | echo "Reading from SPD: $index/$end" 127 | local hex=$(i2cget -y "$BUS" "$DIMM" ${index} | sed -ne 's/^0x\(.*\)/\1/p') 128 | 129 | # If i2cget failed during the read, something weird happened in the machine 130 | if [ $? -ne 0 ]; then 131 | echo "$__error_i2c" 132 | exit 1 133 | fi 134 | 135 | echo "${hex}" 136 | printf "\x${hex}" >> "$filename" 137 | 138 | # If printf failed, then either you do not have permissions to write to the file 139 | # OR somehow printf is not present on this machine 140 | if [ $? -ne 0 ]; then 141 | echo "$__error_printf" 142 | exit 1 143 | fi 144 | 145 | index=$((index+1)) 146 | done 147 | 148 | echo "Dump written to: ${PWD}/${filename}" 149 | } 150 | 151 | main "$@" 152 | -------------------------------------------------------------------------------- /writespd.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/python 2 | 3 | """ 4 | writespd.py - takes 3 mandatory options and runs a shell command for every byte. 5 | 6 | This writespd.py software is provided "as-is" with no warranty, implied or not. 7 | By using this script you agree to proceed at your own risk. 8 | """ 9 | 10 | import os 11 | import sys 12 | import getopt 13 | import subprocess 14 | from pathlib import Path 15 | from time import sleep 16 | 17 | def main(argv): 18 | if os.getuid(): 19 | print("Please run as root.") 20 | sys.exit(1) 21 | 22 | try: 23 | opts, args = getopt.getopt(argv, "hxb:d:f:", ["bus=", "dimm=", "filepath=", \ 24 | "help", "xmp"]) 25 | except getopt.error: 26 | print(sys.argv[0], '-x -b -d -f ') 27 | sys.exit(1) 28 | 29 | xmp = False 30 | 31 | for opt, arg in opts: 32 | if opt in ("-h", "--help"): 33 | print(sys.argv[0], '-x -b -d -f ') 34 | print("-x --xmp | write only to xmp region") 35 | print("-b --bus (i.e. 0,1,2,3...)") 36 | print("-d --dimm (i.e. 0x50,0x21,0x4A") 37 | print("-f --file (i.e. ./foo/bar/ocprofile.spd") 38 | sys.exit(0) 39 | elif opt in ("-b", "--bus"): 40 | bus = arg 41 | elif opt in ("-d", "--dimm"): 42 | dimm = arg 43 | elif opt in ("-f", "--file"): 44 | inputpath = arg 45 | elif opt in ("-x", "--xmp"): 46 | xmp = True 47 | 48 | writespd(bus, dimm, inputpath, xmp) 49 | 50 | def writespd(busaddr, dimmaddr, filepath, xmpmode): 51 | file = Path(str(filepath)) 52 | 53 | if not file.is_file(): 54 | print('Input file not found.') 55 | sys.exit(1) 56 | else: 57 | print('WARNING! This program can confuse your I2C bus, cause data loss and worse!') 58 | print('I will write to device file /dev/i2c-', busaddr, 'chip address', dimmaddr, \ 59 | ', using write byte') 60 | 61 | ans = input('Accept the risks and proceed? (yes/y/N/No): ').lower() 62 | if ans in ['yes', 'y']: 63 | spdfile = open(file, "rb") 64 | 65 | if xmpmode: 66 | offset = 176 67 | end = 220 68 | ext = "xmp" 69 | checkfile(file, 1) 70 | else: 71 | offset = 0 72 | end = 256 73 | ext = "spd" 74 | checkfile(file, 0) 75 | 76 | print("Writing....") 77 | for index in range(0+offset, end): 78 | byte = ("0x" + spdfile.read(1).hex()) 79 | 80 | print("Writing to SPD: {}/{} ({})".format(index,end,byte)) 81 | sleep(0.1) #writing through smbus requires some delay 82 | 83 | i2cproc = subprocess.Popen(['i2cset', '-y', busaddr, dimmaddr, \ 84 | str(index), byte], stdout=subprocess.PIPE, stderr=subprocess.PIPE) 85 | output, err = i2cproc.communicate() 86 | 87 | print("{} written successfully to {}".format(filepath, dimmaddr)) 88 | 89 | else: 90 | print('User did not type yes/y/Y. No changes have been made. Exiting') 91 | sys.exit(1) 92 | 93 | def checkfile(file, xmpmode): 94 | size = os.path.getsize(file) 95 | if xmpmode and (size < 40 or size > 44): 96 | print("XMP file must be between 40-44 bytes") 97 | sys.exit(1) 98 | elif not xmpmode and size !=256: 99 | print("SPD file must be exactly 256 bytes") 100 | sys.exit(1) 101 | 102 | if __name__ == "__main__": 103 | main(sys.argv[1:]) 104 | -------------------------------------------------------------------------------- /writespd.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | # Project: readspd - a RAM SPD reading tool similar to TB2BIN 4 | # Author: baboomerang https://github.com/baboomerang/ 5 | # Date: 02/15/2020 6 | 7 | # WRITESPD.sh ======================================================== 8 | # Make sure i2c_dev, i2c_i801, i2c_algo_bit are loaded. 9 | # This should write to the spd of the ram from a file (255 bytes) long. 10 | # For saftey reasons this writes to only one spd at a time. 11 | 12 | #<