View D820LP_4570302.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

desktop board D820LP specification update release date: may 2000 order number: a26955-006 the intel a desktop board D820LP may contain design defects or errors known as errata which may cause the product to deviate from published specifications. current characterized errata are documented in this specification update.
information in this document is provided in connection with intel a products. except as provided in intels terms and conditions of sale for such products, intel assumes no liability whatsoever, and intel disclaims any express or implied warranty, relating to sale and/or use of intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. intel products are not intended for use in medical, life saving, or life sustaining applications. intel corporation may have patents or pending patent applications, trademarks, copyrights, or other intellectual property right s that relate to the presented subject matter. the furnishing of documents and other materials and information does not provide any license, express or implied, by estoppel or otherwise, to any such patents, trademarks, copyrights, or other intellectual property rights. intel retains the right to make changes to specifications and product descriptions at any time, without notice. the D820LP desktop board may contain design defects or errors known as errata which may cause the product to deviate from published specifications. current characterized errata are available on request. contact your local intel sales office or your distributor to obtain the latest specifications before placing your product order . * third party brands and names are the property of their respective owners. copies of documents which have an ordering number and are referenced in this document, or other intel literature, may be obtained from: intel corporation p.o. box 5937 denver, co 80217-9808 or call in north america 1-800-548-4725, europe 44-0-1793-431-155, france 44-0-1793-421-777, germany 44-0-1793-421-333, other countries 708-296-9333 copyright 2001, intel corporation. all rights reserved.
contents revision history ............................................................................................................... ....................v preface ........................................................................................................................ ........................... vi specification update for intel a desktop boards D820LP general information ............................................................................................................ ..............3 specification changes .......................................................................................................... .............5 errata......................................................................................................................... ..............................8 documentation changes .......................................................................................................... .........9

D820LP specification update v revision history date of revision version description may 2000 -001 this document is the first specification update for the intel a desktop board D820LP. august 2000 -002 added specification change 1 and document change 1. september 2000 -003 added erratum 1. october 2000 -004 added documentation change 2. april 2001 -005 removed bios/errata cross reference table, added documentation change 3. may 2000 -006 added erratum 1.
D820LP specification update v i preface this document is an update to the specifications contained in the intel a desktop board D820LP technical product specification (order number a15751). it is intended for hardware system m anufacturers and software developers of applications, operating systems, or tools. it will contain specification c hanges, errata, specification clarifications, and documentation changes. refer to the pentium a iii processor specification update (order number 244453) for specification updates concerning the pentium iii processor. items contained in the pentium iii processor specification update that either do not apply to the D820LP desktop board or have been worked around are noted in this document. otherwise, it should be assumed that any processor errata for a given stepping are applicable to the pba revision(s) associated with that stepping. refer to the intel a celeron? processor specification update (order number 243748) for specification updates concerning the intel celeron processor. items contained in the intel celeron processor specification update that either do not apply to the desktop board D820LP or have been worked around are noted in this document. otherwise, it should be assumed that any processor errata for a given stepping are applicable to the pba revision(s) associated with that stepping. refer to the intel a 82820 chipset: 82820 memory controller hub (mch) specification update (order number 290630) for specification updates concerning the 82820 mch controller. items contained in the 82820 mch specification update that either do not apply to the D820LP desktop board or have been worked around are noted in this document. otherwise, it should be assumed that any mch errata for a given stepping are applicable to the pba revision(s) associated with that stepping. refer to the intel a 82801 i/o controller hub (ich) specification update (order number 290677) for specification updates concerning the 82801 i/o controller hub. items contained in the intel 82801 ich specification update that either do not apply to the D820LP desktop board or have been worked around are noted in this document. otherwise, it should be assumed that any ich errata for a given stepping are applicable to the printed board assembly (pba) revision(s) associated with that stepping. refer to the intel a 82802 firmware hub (fwh) specification update (order number tbd) for specification updates concerning the 82802 firmware hub. items contained in the intel 82802 fwh specification update that either do not apply to the D820LP desktop board or have been worked around are noted in this document. otherwise, it should be assumed that any ich errata for a given stepping are applicable to the printed board assembly (pba) revision(s) associated with that stepping. nomenclature specification changes are modifications to the current published specifications. these changes will be incorporated in the next release of the specifications. errata are design defects or errors. characterized errata may cause the D820LP desktop boards behavior to deviate from published specifications. hardware and software designed to be used with any given printed board assembly (pba) and bios revision level must assume that all errata documented for that pba and bios revision level are present on all desktop boards. specification clarifications describe a specification in greater detail or further highlight a specifications impact to a complex design situation. these clarifications will be incorporated in the next release of the specifications. documentation changes include typos, errors, or omissions from the current published specifications. these changes will be incorporated in the next release of the specifications.
specification update for intel a desktop boards D820LP

D820LP specification update 3 general information basic intel a desktop board D820LP identification information aa revision pba revision bios revision notes a14723-400 a14724-400 vc82010a.86a.0023.p09 1-7 a14723-402 a14724-402 vc82010a.86a.0031.p11 1-7 a14723-403 a14724-403 vc82010a.86a.0035.p15 1-7 notes: 1. the pba number or aa number is found on a small label on the component side of the board. 2. the 82820 chipset kit used on this pba revision consists of three components as follows: device stepping s-spec numbers 82820 mch b2 sl47d 82801aa ich a3 sl3z2 82802ab fwh a0 sb48 3. the following errata are contained in the pentium a iii processor specification update (order number 244453) for the pentium iii processor and either do not apply to the desktop board D820LP or have been worked-around in this pba and/or bios revision: 2. all other errata associated with the processor apply to this pba revision. 4. the following errata are contained in the intel a celeron ? processor specification update (order number 243748) for the celeron processor and either do not apply to the desktop board D820LP or have been worked-around in this pba and/or bios revision: none. all other errata associated with the processor apply to this pba revision. 5. the following items are contained in the intel a 82820 memory controller hub (mch) specification update (order number 290630) and either do not apply to the desktop board D820LP or have been worked around in this pba and/or bios revision: none, all other errata associated with the mch apply to this pba revision. 6. the following items are contained in the intel a 82801 i/o controller hub specification update (order number 290677) and either do not apply to the desktop board D820LP or have been worked around in this pba and/or bios revision: none. all other errata associated with the ich apply to this pba revision. 7. the following items are contained in the intel a 82802 firmware hub specification update (order number tbd) and either do not apply to the desktop board D820LP or have been worked around in this pba and/or bios revision: none. all other errata associated with the fwh apply to this pba revision.
D820LP specification update 4 summary table of changes the following table indicates the specification changes, errata, specification clarifications, or documentation changes which apply to the D820LP desktop board. intel intends to fix some of the errata in a future revision of the desktop board, and to account for the other outstanding issues through documentation or specification changes as noted. this table uses the following notations: codes used in summary table doc: document change or update that will be implemented. fix: this erratum is intended to be fixed in a future revision of the desktop board, driver, or bios. fixed: this erratum has been previously fixed. nofix: there are no plans to fix this erratum. shaded: this erratum is either new or modified from the previous version of the document. no. plans specification changes 1 doc addition of new feature, fast booting systems with intel ? rapid bios boot no. plans errata 1 fix some scsi host bus adapters may not boot to the hard disk drive with a bootable cd-rom drive attached 2 fixed intel a pentium a iii processor erratum e76 no. plans documentation changes 1 doc change to description of bios main menu memory option 2 doc change to description of section 1.6.4, real-time clock, cmos sram, and battery 3 doc change to description of section 1.5.2, memory features
D820LP specification update 5 specification changes the specification changes listed in this section apply to the D820LP motherboard technical product specification (order number a15751). all specification changes will be incorporated into a future version of that specification. 1. addition of new feature, fast booting systems with intel ? rapid bios boot section 3.8, overview of bios features will be added. all subsequent sections will be renumbered accordingly: 3.8 fast booting systems with intel rapid bios boot there are three factors that affect system boot speed: selecting and configuring peripherals properly using an optimized bios, such as the intel ? rapid bios selecting a compatible operating system the bios is not configured by default to boot at the fastest possible speed. empirical measurements have shown that some intel ? desktop boards, when optimized as described above, can complete post (power on self test) in six seconds or less and boot to an active microsoft windows* millennium (me) operating system in 21 seconds. in addition to the appliance-like speed that benefits end users, fast booting systems can also increase an oems manufacturing line throughput. 3.8.1 peripheral selection and configuration the following techniques will help improve system boot speed: choose a hard drive with parameters, such as a power-up to data ready of less than eight seconds which will minimize hard drive startup delays. the western digital caviar aa or ba series are examples of drives that meet this parameter. select a cd-rom drive with a fast initialization rate; variations can influence post times. eliminate unnecessary features such as video-company-logo displaying, screen repaints, or mode changes. these all add time in the boot process. the plug and play communication between the video bios and the monitor shows time variances. try different monitors. some monitors initialize more quickly, thereby enabling the system to boot more quickly.
D820LP specification update 6 3.8.2 intel ? rapid bios boot there are several bios settings, which if adjusted, can reduce the execution time of the post: set the hard disk drive as the first boot device. as a result, the post will not seek a diskette drive (saving about one second from the post time) or a cd-rom drive (saving about two seconds). disable quiet boot to eliminate the logo splash screen. this could save several seconds of painting complex graphic images and changing video modes. make sure the intel ? rapid bios boot option (in the boot menu of the bios setup program) is enabled (this is typically the default setting). this feature bypasses memory count and floppy seek. disable the lan feature pxe (preboot executable environment) if it will not be used. doing so can reduce up to four seconds of option rom boot time. / note it is possible to optimize the boot process to the point where the system boots so quickly that the intel ? logo screen (or a custom logo splash screen) will not be seen. monitors and hard disk drives with minimum initialization times can also contribute to a boot time that might be so fast that necessary logo screens and post messages cannot be seen. if this should occur, it is possible to introduce a programmable delay ranging from 3 to 30 seconds (using the hard disk pre- delay feature of the advanced menu in the ide configuration submenu of the bios setup program). for information about refer to ide configuration submenu in the bios setup program table 61, page 94 3.8.3 operating system 3.8.3.1 selection the microsoft windows* millennium edition (windows me) operating system has built-in capabilities for making pcs boot more quickly. for additional information, see the following url: http://www.microsoft.com/hwdev/newpc/fast-boot.htm
D820LP specification update 7 3.8.3.2 optimization to speed operating system availability at boot time, limit the number of applications that load into the system tray or the task bar. / note the intel ? rapid bios boot technology is only available with bios revision vc82010a.86a.0032.p12 or later.
D820LP specification update 8 errata 1. some scsi host bus adapters may not boot to the hard disk drive with a bootable cd-rom drive attached p roblem : if a bootable cd-rom is attached to the scsi host bus adapter (hba) and set as bootable in the setup menu of the scsi hba without bootable media installed, the system may not boot to the attached hard drive. i mplication : users who wish to utilize a bootable scsi cd-rom in conjunction with a bootable hard drive on an add-in scsi host bus adapter may not be able to boot to the hard drive if the scsi adapter is set to recognize the cd-rom as a bootable device. w orkaround : enable the cd-rom as a bootable scsi device only when using bootable media. s tatus : this erratum will be fixed in a future bios revision. 2. intel a pentium a iii processor erratum e76 p roblem : for a complete description of the pentium a iii processor erratum e76, see the pentium iii specification update, order number 244453 found at http://developer.intel.com/design/pentiumiii/specupdt/ . i mplication : for a complete description of the pentium iii processor erratum e76, see the pentium iii specification update, order number 244453 found at http://developer.intel.com/design/pentiumiii/specupdt/ . w orkaround : update the D820LP desktop board with bios revision vc82010a.86a.0040.p17. s tatus : this erratum was addressed in bios revision vc82010a.86a.0040.p17.
D820LP specification update 9 documentation changes the documentation changes listed in this section apply to the D820LP motherboard technical product specification (order number a15751). all documentation changes will be incorporated into a future version of that specification. 1. change to description of bios main menu memory option in section 4.3, table 56, bios main menu will be changed as follows: table 1. main menu feature options description bios version no options displays the version of the bios. processor type no options displays processor type. processor speed no options displays processor operating frequency. system bus frequency no options displays the of the system front side bus frequency. cache ram no options displays the size of second-level cache and whether it is ecc-capable. total memory no options displays the total amount of ram. memory bank 0 memory bank 1 no options displays type of rimm installed in each memory bank. language english (us) (default) german french italian spanish selects the default language used by the bios. processor serial number disabled (default) enabled enables and disables the processor serial number. memory configuration non-ecc ecc (default) allows selection of ecc-mode memory operation if ecc-type memory is installed. system time hour, minute, and second specifies the current time. system date month, day, and year specifies the current date.
D820LP specification update 10 2. change to description of section 1.6.4, real-time clock, cmos sram, and battery the note in section 1.6.4 will be changed in its entirety as follows: / notes if the battery and ac power fail, custom defaults if previously saved, will be loaded into cmos ram at power-on. the recommended method of accessing the date in systems with D820LP boards is indirectly from the real-time clock (rtc) via the bios. the bios on D820LP boards contains a century checking and maintenance feature. this feature checks the two least significant digits of the year stored in the rtc during each bios request (int 1ah) to read the date and, if less than 80 (i.e., 1980 is the first year supported by the pc), updates the century byte to 20. this feature enables operating systems and applications using the bios date/time services to reliably manipulate the year as a four-digit value. 3. change to description of section 1.5.2, memory features section 1.5.2, memory features will be changed in its entirety as follows: 1.5.2 memory features the intel a 82820 memory controller hub (mch) integrates a single rambus* channel as an electrically pipelined serial bus (16 data bits in width) with uniform impedance of 28 ohms and single-ended termination. this rambus channel is capable of providing a processor-to-memory bandwidth up to 1.6 gb/sec. the board supports the following memory features: up to two 2.5 v, 184-pin, rimm* modules 512 mb maximum onboard capacity using 128 or 144 mbit technology single or double-sided rimm modules serial presence detect (spd) memory only non-ecc memory with 16-bit components (128 mbit technology) ecc memory with 18-bit components (144 mbit technology)
D820LP specification update 11 for information about refer to the rambus* rimm* specification section 1.3, page 16 the direct rambus serial presence detect (spd) specification section 1.3, page 16

▲Up To Search▲

Price & Availability of D820LP

	To Download D820LP Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .