do not support UDMA 66/100, you should pay attention to the setting of the operating mode of the CMOS hard disk. CPU overclocking increases the CPU's operating frequency while also causing its performance to become unstable. The reason, the CPU in memory access to data faster than the speed of memory and hard disk exchange data, overclocking makes this contradiction more prominent, exacerbated in memory or virtual memory can not find the required dat
To the photographic enthusiasts for detailed analysis to share the Canon 5DMarkII camera support does not support CF card problem.
Analytical sharing:
Canon 5D Mark II supports CF card (Typeⅰ, Ⅱ), UDMA CF card.
Okay, the above information is small make up to you photography enthusiasts brought to the detailed Canon 5DMarkII camera support CF card does not support the problem of the full content of the share, you see the photography enthusiast
: If a floppy drive is installed in the system, use this option to enable or disable the floppy disk drive
Primary Master Drive First Master Drive
Primary Slave Drive first from the drive
Secondary Master Drive Second Master Drive
Secondary Slave Drive second from drive
IDE Drive UDMA Support Udmadeide drive: Use this option to enable or disable transmission through the internal IDE hard disk port DEDMA.
Hard-disk Drive Sequence Hard Drive order
R is an open source software that, when programmed, requires many packages to be installed, which can be laborious if one is installed. Because R supports scripting languages, consider using. The R file stores all the packages you want to use, such as Mass, Lpsolve, Arules, and so on, and then run this. R file, you can install it in bulk.1. First, the R language packages are saved in one according to their dependencies. R files, such as LIB2D.RLib2d.rInstall. Packages ("MASS")Install. Packages (
This example describes the way PHP uses image magick to convert PDF files to JPG files. Share to everyone for your reference. Specifically as follows:
This is a very simple format conversion code that can be put. The PDF file is converted to a. jpg file, the code will work, and the server must install the image Magick extension.
$pdf _file = './pdf/demo.pdf ';
$save _to = './jpg/demo.jpg ';
Make sure so Apache has permissions to write in this folder!
(common problem)
//execute ImageMa
information corresponding to each picture.You may have a question, why are there a few pictures?I explain this, imagesourceref and files are one by one corresponding, usually we see a picture file (such as jpg,png) inside only one picture, this situation we get through the Cgimagesourcegetcount method will be 1. But you can't rule out a picture file with a variety of pictures, such as GIF files, a file may contain several or even dozens of pictures. I wrote a blog in front of "How to parse and
Ffdshow can be called the Almighty decoder, encoder. Initially ffdshow was just an MPEG video decoder, but now he can do much more than that. It can decode the video format already far beyond the MEPG4 range, including Indeo video,wmv, MPEG2 and so on. At the same time, it also provides a wealth of processing options, you can sharpen the screen, adjust the brightness of the screen and so on. More than just video, ffdshow now can also decode audio, AC3, MP3 and other audio formats can be supporte
factor, thus displays corresponds to the 35mm camera focal length Makernote (User Comment) Author marking, the description, the recordFlashpixversionflashpix version (supported by individual models)ColorSpace color gamut, color spaceExifimagewidth (Pixel X Dimension) image width refers to the number of transverse pixelsExifimagelength (Pixel Y Dimension) Image height refers to the number of longitudinal pixelsInteroperability IFD generic extension de
distance "=> $exif [computed][focusdistance]." M "," focal length "=> $exif [exif][focallength]." MM "," equivalent 35mm focal length "=> $exif [exif][focallengthin35mmfilm]." MM ",/* Stores user comment. This tag allows to use Two-byte character code or Unicode. The 8 bytes describe the character code.
' JIS ' is a Japanese character code (known as kanji). ' 0x41,0x53,0x43,0x49,0x49,0x00,0x00,0x00 ': ASCII ' 0x4a,0x49,0x53,0x00,0x00,0x00,0x00,0x00 ': JIS ' 0x55,0x4e,0x49, 0x43,0x4f,0x4
thing for an old hard disk to play its role. However, it should be noted that the old hard disk is referred to here. If you are using a new hard disk that supports udma, be sure not to 'fdown' your hard disk.The following figure shows the transmission rate of the IDE device In PIO mode:Maximum Pio data transmission rate (MB/s)Pio Mode 0 3.3Pio Mode 1 5.2Pio Mode 2 8.3Pio Mode 3 11.1Pio Mode 4 16.64. Master/Slave drive ultra DMA (Master/Slave drive ul
machine will easily crash during running. You can use special tools and software for troubleshooting. If the damage is serious, you can only replace the hard disk. In addition, for boards that do not support udma 66/100, you should pay attention to the setting of the hard disk running mode in CMOS.
2. software-related crashes
[Improper software upgrade]Most people may think that the software upgrade will not be a problem. In fact, some components sha
hard disk will be downgraded, that is, Ultra ATA/100/66 will be reduced to Ultra ATA/66/33, and the Intel Ultra ATA Storgae driver must be installed separately. More information can be seen in the Companion window, default Transfer Mode indicates the transmission Mode in the Default state, and Current Transfer Mode indicates the transmission Mode in the Current state.2. VIA series MotherboardAlthough Windows 2000/XP correctly identifies the hard drive model, after installing the VIA quad-in-One
, record number of sectors that are positive for errors
* These sectors are not currently readable, and if there are files using these sectors, the operating system will return read errors, the hard disk will automatically relocate the sector when the next write operation occurs, and the relocation sector count (reallocated Sector count) is increased, and this value is reduced.
ULTRADMA CRC error Count UDMA communication CRC Error, recording of CR
also introduces a new technology-CRC, which is designed to send Cyclic Redundancy verification codes when the system and hard disk are transmitted, when receiving the data, the other party also checks the difficult code of the school. Only when the correct information is fully checked can the data be received and processed, this guarantees the security of high-speed data transmission.
ATA-5ATA-5, also known as ata66, is based on the ultra DMA 33 hard disk interface and also uses
disk.-m16 allows the hard disk to read data in 16 sectors during an I/o interruption (depending on the specific hard disk ).③ D1: Enable the DMA mode.④ X66: In a hard disk that supports UDMA-capable, this parameter can support dual-DMA channel data transmission mode.⑤ U1: When Linux is dealing with disk interruptions, it can unmask other interruptions or respond to other interruption-related tasks.To view the above changes, run the following command:
To the photographic enthusiasts for detailed analysis to share the Canon 7D camera support does not support the SDXC card problem.
Analytical sharing:
Canon 7D does not support SDXC cards and supports I or II CF cards (compatible with UDMA).
Well, the above information is small knitting to all of you photography enthusiasts brought to the detailed Canon 7D camera support does not support the SDXC card problems to share the full content of the
trouble ~ at this time the good alias will have to deal with it! You can add this line in ~/.BASHRC: "Alias grep= ' grep--color=auto '" and then "source ~/.BASHRC" to take effect immediately! So every time you run grep, he'll automatically add color to your display.Use DMESG to list the core information, and then grep to find the line containing the ETH, in the first two lines of the keyword row and the last three lines are also caught out of the display[Email protected] ~]# DMESG | Grep-n-a3-b
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