Application of mining machine BIOS
in order to cater to the current mining boom, major manufacturers have released corresponding mining motherboards to seize the market. What can be inserted into the magic board of 13 graphics cards, super stable power supply and so on. It's easy to ignore the BIOS on the motherboard while configuring the heap. Although the current mining has experienced several years of training, but at present, when we assemble the mining machine, we still need to toss BIOS, in order to use the multi card to improve the performance of mining. For most mine friends, it is a great test to brush BIOS. If the brush is broken, the whole board will be scrapped. The major manufacturers in improving the corresponding configuration at the same time, but rarely invest too much research and development in BIOS. The reason is that the BIOS of mining machinery is difficult to develop, the research and development time is too long, and the cost recovery is slow. Therefore, compared with the BIOS of special mining machine, it is better to improve the profit of motherboard configuration
there are many mining motherboards on the market, but there are few motherboards with BIOS specially set for mining. Recently, Meijie has developed a special intelligent BIOS for the newly upgraded professional mining motherboard sy-b85-btc. The BIOS of this motherboard can intelligently identify 6 graphics cards. Save all mine friends time, plug and play, convenient and fast, mining no longer wait. We all know that AMD's mining graphics cards have been sold crazy recently, and NVIDIA can't sit there any more. It is reported that NVIDIA will launch a professional mine card gtx1060, which has no display output interface. Meijie, with foresight, has set up integrated display output for mining BIOS by default. After that, NVIDIA's gtx1060 can be perfectly adapted, more than enough
Meijie sy-b85-btc is based on the scheme design verified by mining instry for many years, and also continues the characteristics of Meijie's high efficiency and low price mine board. As an ATX board, Meijie is equipped with 7-phase luxury power supply, all solid black gold capacitor and PCI-E stabilized capacitor design, to ensure stable and safe mining< The sy-b85-btc adopts B85 chip design, supports the fourth and fifth generation CPU of lga1150 interface, and supports lga115x and LGA775 radiator. It is convenient for miner to upgrade the motherboard and use the old CPU and radiator at the same time. Of course, six PCI-E slots are essential for the motherboard specially designed for mining. Three of them are pci-ex16 slots and three are pci-ex1 slots, which can support up to 6 cards mining. Meijie sy-b85-btc also supports 7 * 24-hour all-weather mining, lightning protection, over-current protection, over-voltage protection, high temperature protection, etc. Such a sharp artifact, how can you not let mining friends heart?
QB is equivalent to RMB. Although many point cards are not equivalent to RMB, they are also similar to the exchange rate, such as 1 yuan to 100 points
this is not to sell as much as you want
many services launched by Tencent require QB. RMB can buy any domestic goods and services that can be expressed in currency, but QB can't. QB can only purchase the services and goods launched by Tencent or the services and goods jointly launched by Tencent and other companies (such as rising recharge)
QB needs promotion, and it can't purchase the real goods compulsorily. We need to sell QB in exchange for RMB, which is the same as selling a piece of goods in exchange for RMB
RMB is a compulsory currency, and it is the only monetary unit in China. You can buy anything and services that can be measured by price. It is just a payment method that can speed up the transaction speed in a certain field in a certain period of time, which is no different from the canteen meal ticket in essence.
eth1 eth2...
example: route add net 10.0.2.0 netmask 255.255.255.0 GW 10.0.2.254 dev eth1
please ask: why is the following command about adding a route wrong
route add - net 10.2.0.0 netmask 255.255.255.0 dev eth2
note that the default route should be added if necessary.
bus route: no.y27 at night → No.14, the whole journey is about 6.2km
1. Walk about 70m from Nanjing South Railway Station to Nanjing South Station
2. Take no.y27 at night, pass 7 stops to Shuanglong Street Station
3. Take No.14, pass 1 stop to Huijing North Road Station
4. Walk about 840m to Nanjing Olympic Sports Center
, what is the reason why the outbreak is not necessarily a source of explosion? The new coronavirus has spread all over the world, causing people's panic all over the world. It also has a great impact on social economy and social life. The source and outbreak point of the new coronavirus outbreak must be completely different. The specific reasons are as follows: friends can refer to the following contents:
3. The samples of the new coronavirus outbreak point are different from the earliest origin strains:
up to now, scientists have found five different new coronavirus strains, The samples at the outbreak point are completely inherited from these viruses, that is to say, the viruses at the outbreak point are only familiar with the Sun Tzu, and the real source needs to be further verified
means that all countries will be affected by the disease
national action should be separated from the global stage, and global risk assessment cannot represent a single member state . At the same time, the guidelines call on Member States to have a sense of international responsibility under the influenza pandemic prevention framework (PIP) and contribute to the influenza pandemic benefit sharing system (gisrs), including cooperation and entities with relevant public and private institutions and organizations. According to the national and local risk assessment, resources and needs, countries assess whether they need international assistance to meet the humanitarian needs, or consider providing resources and technical assistance to countries that are experiencing pandemic influenza. Given the differences between the new virus and the influenza virus, this guideline may not be accurate. But this concept is consistent. In response to global epidemics, countries not only need to carry out prevention and control work according to local conditions, but also need sincere cooperation between countries
the reason why COVID-19 is difficult to control in the United States is mainly e to the following reasons: at the beginning of the outbreak of
1., some people despised and misled of so that they did not get the attention of the public. In particular, in the early days, some current US President Trump's remarks were unrealistic, and all kinds of false data were constantly drawing big pie. What's more, with the rapid growth of the number of people infected with the new coronavirus in the United States, the White House is launching a communication plan among several federal agencies to unify the channel and criticize China; Cover up the epidemic;, Leading to a global pandemic. This is a surprise to the world. The White House did not plan well for the fight against the epidemic. It focused on this kind of heresy and singled out the contradictions between the Chinese and American people{ RRRRR}
5. They think that natural selection, the epidemic will develop to the end, there will be antibody proction , do not need to be too flustered, look, the United States has been concting a nationwide antibody testing
BIOS (basic input output system) setup program is a set of programs solidified into ROM chips on the computer motherboard. Its main function is to provide the lowest level and most direct hardware setting and control for the computer. The BIOS Setup program is stored in the BIOS chip and can be set only when the computer is turned on. CMOS is mainly used to store the parameters and data set by the BIOS Setup program, and the BIOS Setup program is mainly used to manage and set the basic input and output system of skills, so that the system runs in the best state. Using the BIOS Setup program can also eliminate system faults or diagnose system problems This article is the BIOS program used by computer knowledge network in our computer. According to the different manufacturers, it can be divided into award BIOS program, AMI BIOS program, Phoenix BIOS program, other jumper free BIOS program and special BIOS program of brand computer, such as IBM, etc
at present, there are three types of BIOS on motherboard, namely award AMI and Phoenix. However, Phoenix has merged award, so in terms of desktop motherboard, although it is marked with award-phoenix, it is actually the BIOS of award. Phoenix BIOS is mostly used in high-end 586 original brand computers and laptops, and its picture is simple and easy to operate< After starting or restarting the computer, when "waiting..." is displayed on the screen, press the "del" key to enter the CMOS setting interface (Figure 1). It should be noted that if you press too late, the computer will start the system. At this time, you have to restart the computer. You can press and hold the delete key immediately after power on until you enter the CMOS. After entering, you can move the cursor with the direction key to select the options on the CMOS setting interface, then press enter to enter the submenu, use ESC key to return to the parent menu, use page up and page down keys to select specific options, and F10 key to keep and exit BIOS setting. Standard CMOS setup is used to set the date, time, specification of hard disk and soft disk, working type and display type It is used to set the parameters related to CPU operation.
power management setup.
it is used to set the CPU, hard disk, power saving function Power saving function of display and other devices
PNP / PCI configuration
used to set the interrupt and other differences of ISA and other plug and play devices
Load BIOS defaults
this option is used to load the initial BIOS settings
Load optimum settings < br />This is the basic setting of BIOS, It is used to determine the fault range
integrated peripherals
mainboard integrated device setting
hypervisor password
computer administrator setting to enter BIOS to modify setting password
user password
setting boot password
ide HDD auto detection
used to automatically detect the capacity and type of hard disk
Save & exit setup
save the changed settings and exit BIOS settings
exit with out save
do not save the modified settings, And exit setting standard CMOS setup (Figure 2
standard CMOS settings include date and time settings. You can set the time and date on your computer here
the following is the hard disk settings, and the first group of IDE master devices of primary master exist in the list; Primary slave the first group of IDE slaves; The second group of IDE master devices; Second slave the second group of IDE slaves. The IDE devices here include IDE hard disk and IDE optical drive. The first and second groups of devices refer to the first and second ide data lines on the motherboard. Generally speaking, the first group of IDE devices is close to the chip, while the master device and slave device refer to two devices connected on one ide data line. We know that each data line can be connected to two different devices, the master device and the slave device The slave device can be adjusted by the jumper at the back of the hard disk or optical drive
the following is the type and hardware parameters of IDE device. Type is used to describe the type of hard disk device. We can select the working modes of auto, user and none. The system detects the type of hard disk by itself and stores 1-45 types of hard disk parameters in the system. When using this setting value, it is unnecessary to set other parameters; If the hard disk we use is not predefined, we should set the hard disk type to user, and then input the actual parameters of the hard disk (these parameters are generally on the surface label of the hard disk); If no ide device is installed, we can select the none parameter to speed up the startup of the system. In some special operations, we can also shield the system from automatically checking some hard disks
size indicates the capacity of the hard disk; Cyls hard disk cylinder number; Number of heads of head hard disk; Precomp writes precompensation value; LANDZ landing area is the start stop sector of the magnetic head. The last mode is the working mode of hardware. We can choose normal mode, LBA logic block address mode, large hard disk mode and auto selection mode. Normal mode is the original ide mode. In this mode, you can access the BIOS of hard disk and IDE controller to make any conversion to the parameter part. The maximum capacity supported is 528mb. The maximum capacity of hard disk managed by LBA mode is 8.4GB, and that supported by large mode is 1GB. Auto mode is the working mode of hard disk automatically selected by the system
the other parts in Figure 2 are drive a and drive b floppy drive settings. If there is no drive B, then none drive B is set. We can choose our floppy drive type here. Of course, in most cases, we don't have to change this setting
video setting is used to set the working mode of the monitor, that is, EGA / VGA working mode
halt on this is an error stop setting. All errors BIOS: it will stop when any error is detected; No errors: when BIOS detects any non serious errors, the system will not stop; All but keyword: except for the keyboard error, any error detected by the system will be stopped; All but disable: except for the disk drive error, the system will shut down if it detects any error; All but disk / key: except for disk drive and keyboard errors, any error detected by the system will be stopped. This is used to set the shutdown mode of system self-test. If the above error occurs, the system will stop starting and give an error prompt
we can notice that in the bottom right of Figure 2, there are parameters of system memory: base memory: basic memory; Extended extended memory; Other memory; Total memory
BIOS features setup Figure 3
enabled is on and disabled is disabled. Page up and page down can be used to switch between the two
CPU internal core speed: the current running speed of CPU
virus warning: virus warning
CPU internal / external cache
CPU L2 gache ECC checking
quick power on self test (quick power on self test) this option can be used to adjust the self test steps of some computers to check the memory capacity three times ring self test
CPU update data
boot from LAN first this option can wake up the computer remotely
boot sequence is a function that we often adjust. Usually, we use a, C, SCSI and CDROM in order. If you need to boot from CD, you can adjust it to only CDROM. For normal operation, it's better to start from CD.
BIOS false protection (BIOS write protection)
processor serial number (the system automatically detects Pentium 3 processor)
swap floppy drive
VGA boot from
boot up floppy seek
boot up NumLock status
typematic rate setting
typematic rate (chars / sec, byte / sec)
type delay (setting the first delay time)
if the security option is set to setup, the screen will prompt you to enter the password every time you open the machine (ordinary user password or super user password, ordinary users have no right to modify BIOS settings), and if you don't know the password, you can't use the machine; If it is set to system, the user will be prompted to enter the super user password only when he wants to enter the BIOS settings
memory parity check: if the memory mole configured on the machine does not have parity check function, it must be set to disable. At present, most microcomputers (including brand computers) do not have parity check except servers
assign IRQ for VGA IRQ is the system interrupt address< br />OS SELECT FOR DRAM> 64MB (set the memory capacity of OS2) if the OS / 2 system is in use and the system memory is larger than 64MB, this item should be enabled. Otherwise, the memory higher than 64MB cannot be used, and it is generally disabled
HDD s.m.a.r.t. capability this option can be used to automatically detect the performance of the hard disk. If the hard disk is about to be damaged, the hard disk self-test program will give an alarm
report no FDD for Win95 (assign irq6 to FDD) FDD is a floppy drive
Video BIOS show (VGA BIOS show) is used to improve the display speed of the system. It is usually turned on. C8000-cbffff shadow: this area is mainly used to map the ROM content on the expansion card (network card, decompression card, etc.) and put it into the host ram to run, so as to improve the speed. The latest illustration of the whole process of setting AMI BIOS
I found two kinds of BIOS: asus's AMI BIOS and Shengji's award BIOS, which are the two mainstream BIOS at present, as well as motherboards of different brands. Their BIOS is similar to the functions and settings of these two kinds of BIOS, but generally different motherboards and BIOS
1. Self test and initialization
the first part is used to detect the hardware when the computer is just connected to the power supply. The function is to check whether the computer is in good condition. Generally, the complete post self test will include testing the CPU, 640K basic memory, 1m or more expanded memory, ROM, motherboard, CMOS memory, serial and parallel port, display card, software and hard disk subsystem and keyboard
the second part is initialization, including creating interrupt vectors, setting registers, initializing and detecting some external devices, etc. a very important part is BIOS setting, which is mainly about some parameters of hardware settings. When the computer starts up, these parameters will be read and compared with the actual hardware settings. If they are not consistent, the start-up of the system will be affected
The third part is bootloader, which is used to boot DOS or other operating systemsBIOS first reads the boot record from the beginning sector of the floppy disk or hard disk. If the boot record is not found, it will show that there is no boot device on the display. If the boot record is found, the control of the computer will be transferred to the boot record, and the operating system will be loaded into the computer by the boot record. After the computer is successfully started, this part of the BIOS task is completed
2, program service processing
program service processing program is mainly for application and operating system services, these services are mainly related to input and output devices, such as reading disk, file output to printer, etc
In order to complete these operations, BIOS must directly deal with the I / O devices of the computer, it sends commands through the port, transmits data to various external devices and receives data from them, so that the program can be separated from the specific hardware operation The service function of BIOS is realized by calling interrupt service program. These services are divided into many groups, and each group has a special interrupt
extended materials:
BIOS classification:
1, award
award BIOS is a BIOS proct developed by award software company, which is most widely used in the motherboard at present. Award BIOS has complete functions and supports many new hardware. Most mainboards in the market adopt this kind of BIOS
AMI BIOS is the BIOS system software proced by AMI company. It was developed in the mid-1980s. The early 286 and 386 mostly used AMI BIOS. It has good adaptability to all kinds of software and hardware, and can ensure the stability of system performance. After the 1990s, green energy-saving computers began to be popular, but AMI did not launch a new version in time to adapt to the market, So that Edward BIOS occupied most of the country Phoenix BIOS is the proct of Phoenix company, Phoenix means Phoenix or the immortal bird in Egyptian mythology, which has the meaning of perfect thing. Phoenix BIOS is mostly used in high-end 586 original brand computers and laptops. Its picture is simple and easy to operate Insyde BIOS is a software manufacturer's proct, which is a new type of BIOS. It is adopted by some notebook computers based on Intel chips, such as Shenzhou and Lenovo Byosoft is a BIOS proct proced by byosoft, which is widely used in PC, server, communication, Internet of things, instrial control, consumer and other fields