version number alone as the major version number is outdated.
So in August 2002, ATI adopted a new version number naming method, released a catalyst-driven version 2.1, which belongs to the 2-series Catalyst Drive, and then launched 3 Series, 4 series, 5 Series ... until the newest 9 Series Catalyst Drive, the so-called 2, 3, 4, 5......9 system, ATI is divided by year, that is, the 2-series drive represents the 2002-year driver version, while the following numbers represent the month, for exam
The memory clock speed is the same as the CPU clock speed. It is used to indicate the memory speed. It represents the maximum operating frequency that the memory can achieve. The memory clock speed is measured in MHz (MHz. The higher the memory frequency, the faster the memory can reach. The memory clock speed determines the maximum operating frequency of the memory. At present, the mainstream memory frequency rooms are 333mhz and 400mhz DDR memory, a
The Dual-channel memory technology is actually a memory control and management technology that relies on the memory controller of the chipset to be able to increase the bandwidth of two equal-specification memory by one times in theory. It is not a new technology that has long been applied to servers and workstation systems, but only to the Desktop board technology front desk to address the increasingly embarrassing memory bandwidth bottlenecks in desktops. A few years ago, Intel Corporation ha
memory frequency is the same as CPU frequency, is used to represent the speed of memory, it represents the maximum operating frequency that memory can achieve. The memory frequency is measured in MHz (MHz). the higher the memory frequency is to a certain extent, the faster the memory can reach. The frequency of memory determines how often the memory can work correctly. Currently the more mainstream memory frequency rooms are 333MHz and 400MHz of DDR
the "extreme" suffix to name graphics cards that increase their working frequency.
For example, radeon 9550 is now the most popular mid-and low-end display card, and manufacturers place great importance on this market. Therefore, radeon 9550 has many unofficial models. The default operating frequency of radeon 9550 is 250/400 MHz (Core/Display memory), and the o
Author: Tian kaiwenDate: 2011-6-6 14:59:16PS: I will summarize it for future reference. If it is reproduced, please indicate the sourceQQ: 1324343063
Recently, we have analyzed the cpu_init.s of 6410 in uboot. This is the configuration of DDR. Because DDR is an update of SDRAM, we will first look at the SDRAM. The following is a recent summary.
See:
This is 64 m (32 m + 32 m), the principle of SDRAM
1.
Yesterday we completed the mini6410 U-boot automatic identification of 128 MB and mb ddr memory. Here we record the principles.
1. Understand the principles of DDR SDRAM
First, you must understand the principles and external interfaces of ddr sdram.Here are some classic articles on the Internet:
Expert explanation: Memory working principle and development hist
2007, but did not replace DDR2 as quickly as the industry had expected, This middle also experienced to the SDRAM industry far-reaching financial crisis, not only make DDR3 occupy the market speed more slow, but also make DDR3 in the technology once walk in the world's leading memory giant dream Tatsu collapse, it is very regrettable. Nonetheless, DDR3 is now the fastest mature standard in the parallel SDRAM family, and the JEDEC standard specifies a maximum speed of DDR3 up to 1600mt/s (note t
Start. s file
StartCodeIt is very simple, mainly to do some hardware-related settings: Tell the core address of the CPU peripherals, turn off the dog, set the stack (for callsC LanguagePreparation)
. Globl _ start_start:/* hardware-related settings * // * Peri Port setup */LDR r0, = 0x70000000 Orr r0, R0, #0x13 MCR P15, 0, r0, C15, C2, 4 @ 256 m (0x70000000-0x7fffffff)/* shut down the watchdog * // * write 0 */LDR R0 to wtcon (0x7e004000), = 0x7e004000mov R1, # 0str R1, [R0]/* set the sta
According to foreign media reports, Microsoft officially released Windows 7 RTM, and won unanimous praise from users. However, installing Windows 7 on some computers is not a simple task, especially for compatibility and support problems.According to Microsoft, Windows 7 does not run well on AMD/ATI Radeon graphics processing unit GPUs configured to use embedded DisplayPort (eDP) technology. All in all, you cannot successfully deploy Windows 7 on the
The company's website officially opened the new IMac with the Retina 5K screen. It all came so suddenly, we know that the 27-inch Retina 5K imac is a new product that Apple has been launching shortly before, with a resolution of up to 5K that has attracted much attention and even a lot of design and professional work. From the configuration to see the new 27-inch Retina 5K imac is more like the original low version, in the hard disk, graphics and other parts of the same time, the price is also n
system reboot. A minimum of 1.2W, and its own maximum function is 20W. In other words, although high-end users can not use the RS780 mixed fire to enhance the display performance, but with high-end graphics, control power consumption, energy saving, is really practical.
AMD released the Catalyst driver package 8.8. Although the new features are not much, it is a great boon for Windows XP users: Not only is there the latest Avivo video technology, but also the hybrid firefight (Hybrid Graphics)
It has long been said that open source drives are now good, and try to switch the system's closed-source drive (Fglrx) to open source drive. First, uninstall the closed-source driver: Emerge-c x11-drivers/ati-drivers, because now the xorg.conf is generated by ATI command, first kill. Then, in the video_cards environment variable in make.conf, the original Fglrx is changed to Radeon, emerge Xorg-server and libdrm. In order to open KMS, you need to rese
, 875 P, or simplified, for example, 865 p.1 845 series chipset 82845e/82845gl/82845g/82845gv/82845ge/82845pe, except 82845gl, all support 533 MHz FSB (82845gl only supports 400 MHz FSB), supports memory, all 845 series North Bridge Support a maximum of 2 GB memory. 82845gl/82845e supports DDR 266, And the rest support DDR 333. Except 82845gl/82845gv, all of them support the AGP 4x specification.
2
3 865 se
selection signal with a low reading time of TR.
Some users use the NAND Flash startup mode to save costs in the application of network cameras. Figure 1 shows a brief flowchart from power-on to Linux Startup. First, RBL (ROM Boot Loader) reads UBL (user boot loader) from NAND and copies it to arm's memory. UBL runs in arm memory and initializes the system, for example, initializing DDR. UBL then reads the U-boot content from the NAND Flash and copies
OverviewThe purpose of this tutorial is to show you how to block discrete graphics cards for dual graphics notebooks by modifying DSDT and SSDT. (Example: Intel integrated graphics + nvidia discrete graphics [Optimus Technology], and Intel integrated graphics +radeon discrete graphics).Because under the black Apple, the dual graphics notebook can only drive Intel's integrated graphics, and if it does not do any processing, although it will not work, b
underlying DirectRenderInterface (DRI) and graphics card driver.
Run the following command:
Lsmod
See
DRM: Radeon
It indicates that the video card driver is normal, and DRI is faulty.
View
/Var/log/Xorg.0.log
The following information is found:
....
(=) RADEON (0): Using 24 bit depth buffer
(EE) RADEON (0): Static buffer allocation failed. Disabling DRI.
(E
cannot install the public drive
Some third-party ATI graphics cards cannot install the public version of the driver, which is caused by many reasons. For example, some third-party manufacturers have made changes to the hardware, non-public PCB design and BIOs are adopted, which may lead to the failure to install the public edition driver. What should I do when your video card encounters this problem?
First, extract the downloaded atigraphics card driver to any directory on the hard disk. In the
/84 ball FBGA package three kinds of specifications. And the DDR3 must be a green package and cannot contain any harmful substances.
3. Burst Length (Bl,burst)Since the DDR3 is 8bit, the burst transmission cycle (Bl,burst Length) is also fixed to 8, whereas for DDR2 and early DDR architectures, bl=4 is also commonly used, and DDR3 adds a 4-bit Burst Chop (Burst mutation) pattern, That is, a bl=4 read operation combined with a bl=4 write operation to s
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