這個是２００４年的intel產品的設計（主板，主板芯片組，北橋，南橋），結構也比較清晰，主要想看南橋和北橋的設計．
一些英文解釋
ECC是一種能夠實現“錯誤檢查和糾正”的技術
D925XCV是服務器代號
Enthusiast version flagship 狂熱版旗艦
pin 引腳
connectors 連接器
power supply 電源
cable 電纜
high-end 高端
This is true of．．．．這也是如此....
915是主板上那塊靠近CPU的最大芯片的型號，即北橋芯片。915支持775針的INTEL CPU,但是不支持雙核心的775,支持PCI-E的顯卡接口
ICH6系列是現在代表英特爾最優性能的南橋芯片，共有ICH6、ICH6R、ICH6W、ICH6RW四種
used with 適用於
graphics card 圖形卡
paired with 搭配
chipset(s) 芯片組
南北橋芯片
915是北橋芯片（ＭＣＨ）
ICH6系列是南橋芯片（ICH1/ICH2/ICH3/ICH4/ICH5/ICH6等）
82801AB 82801BB 82801BA 82801CA,82801EB,82801ER,82801FB分別對應 ICH0 ICH1 ICH2 ICH3 ICH4 ICH5 ICH5R ICH6等
查看
https://pdf.ic37.com/INTEL_CN/82801_datasheet_12636721/82801_131.html
https://pdf.ic37.com/s/?r=1&keyword=828&source_k=82801CB
http://pdf-html.ic37.com/pdf_file_A/20200531/pdf_pdf/pdf1/INTEL/82801_datasheet_102160/166799/82801_datasheet.pdf //南橋芯片ich6
https://www.anandtech.com/show/1358/4
Intel 925X Express(2004,6,19)
The Intel D925XCV is the Enthusiast version flagship for all the new Intel technology.
Intel 925X主板芯片組物理結構布局圖
If you look carefully, you will see that the power connectors on the new motherboards, both 925X and 915, are 24-pin,
and not the common 20-pin ATX（主板） connectors on current Pentium 4 power supplies(電源). We found that server grade power supplies providing 24-pin(24個引腳) connectors work fine on the new boards. However, if you have a new top-line PCIe graphics card you will likely find a new 6-pin power connector on the graphics card. You will need either a new power supply with the 6-pin graphics connector or a converter cable that allows two 4-pin molex to be combined in a 6-pin connector to power the new high-end PCIe cards. This is true of both 925X and 915 boards.
Intel 925X主板芯片組架構圖（MCH即北橋，ICH即南橋，南橋和北橋通過DMI總線相連）
925X only supports DDR2 and PCI Express 16X graphics. 925X is also the only 775 chipset version that is stated to support ECC memory. We were not able to verify ECC support, since we did not have access to DDR2 ECC memory. The other features are related to the ICH6 version used with 925X, though you will more likely see ICH6R and ICH6RW (pictured here) paired with 925X.
ICH6系列是現在代表英特爾最優性能的南橋芯片，共有ICH6、ICH6R、ICH6W、ICH6RW四種
Intel 925X是主板芯片組，有4個SATA接口個數。
ICH6(南橋)芯片組的架構(圖取自 http://pdf-html.ic37.com/pdf_file_A/20200531/pdf_pdf/pdf1/INTEL/82801_datasheet_102160/166799/82801_datasheet.pdf)
The other distinguishing feature of Intel 925X is accelerated performance modes compared to 915 chipsets. Intel first differentiated their "Enthusiast" board with enhanced performance on the 875 chipset. The 875 chipset featured PAT, or Performance Acceleration Technology, which was supposed to be a unique feature of the 875 chipset. Chipset manufacturers began revising 865 boards to support PAT-like performance almost as soon as Intel launched 865/875. This was not a development that pleased Intel.
This time around, Intel is also differentiating their top chipset with enhanced performance. Intel did not share any catchy names like PAT, and the diagram above is the only information that they provided on how they make the 925X faster. When we asked for more information than the almost meaningless diagram above, Intel said their acceleration methods were "proprietary". This is not really a surprise after the PAT confusion with 875/865. Industry sources tell us that the new acceleration scheme used on 925X is much more complicated than PAT; it will not likely appear on 915 chipset solutions from other manufacturers.
我們查下中關村在線 (https://detail.zol.com.cn/114/113299/param.shtml)
Intel 925X主板芯片組的相關信息主要如下
| CPU類型 | Intel Pentium 4、Pentium 4 EE |
| 內存類型 | DDR2 |
| CPU插槽 | Socket775 |
| CPU數量 | 1 |
| 最大內存容量 | 4GB |
| 內存傳輸頻率 | DDR2 533 |
北橋功能
| 北橋功能 | |
| CPU類型 | Intel Pentium 4、Pentium 4 EE |
|---|---|
| CPU插槽 | Socket775 |
| CPU數量 | 1 |
| 總線規格 | 800MHz |
| 超線程技術 | 支持 |
| 內存類型 | DDR2 |
| 內存通道 | 支持 |
| 內存插槽數量 | 4 |
| 最大內存容量 | 4GB |
| 內存傳輸頻率 | DDR2 533 |
| 內存校驗 | 支持 |
| 顯示芯片 | 否 |
| 集成顯卡特性 | 無 |
| 顯卡插槽 | PCI Express x16 |
| 多顯卡技術 | 不支持 |
南橋功能
| USB接口 | USB 2.0 |
|---|---|
| USB接口個數 | 8 |
| IDE接口 | ATA 100 |
| IDE接口個數 | 1 |
| SATA接口 | SATA 1.0 |
| SATA接口個數 | 4 |
| RAID等級 | SATA RAID 0，1，0+1，Matrix RAID |
| RAID功能 | 支持 |
| PCI-E插槽 | 4 |
| PCI插槽 | 6 |
| 音效芯片 | HD Audio |
| 網絡芯片 | 10/100M |
Intel D925XCV 服務器 重要參數 (https://detail.zol.com.cn/49/48030/param.shtml)
| 主板芯片 | |
| 集成芯片 | 聲卡/網卡 |
|---|---|
| 主芯片組 | Intel 925X |
| 顯示芯片 | 無 |
| 音頻芯片 | 集成聲卡芯片 |
| 網卡芯片 | Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Marvell* Yukon* 88E8050 PCI Express Gigabit Ethernet Controller |
| 處理器規格 | |
| CPU類型 | 奔騰4 |
|---|---|
| CPU插槽 | LGA 775 |
| CPU描述 | 支持Intel Pentium 4 Extreme Edition處理器，支持 Intel Pentium 4處理器 533/800 MHz |
| 內存規格 | |
| 內存類型 | 4×DDR2 DIMM |
|---|---|
| 內存描述 | 四個240針DDRII內存插槽，支持DDRII 400/533,支持4G內存容量 |
| 存儲擴展 | |
| PCI-E標准 | PCI-E 16X |
|---|---|
| PCI插槽 | 四個PCI插槽，二個PCI-E 1X |
| I/O接口 | |
| USB接口 | 八個USB接口，支持USB 2.0 |
|---|---|
| 視頻接口 | 音頻接口 |
| 電源接口 | 一個四針，一個20針電源接口 |
| 其它接口 | 四個SATA接口，PS/2鼠標，PS/2鍵盤接口 |
| 板型 | |
| 主板板型 | ATX板型. |
|---|---|
| 外形尺寸 | 259 * 243mm |
注：Intel D925XCV，是一款服務器，CPU類型為奔騰4
參考：
https://www.intel.cn/content/dam/doc/datasheet/875p-chipset-datasheet.pdf（Intel® 875P Chipset）
https://html.alldatasheetcn.com/html-pdf/576798/INTEL/RG82875/150/1/RG82875.html
https://pdf.ic37.com/INTEL_CN/82801_datasheet_12636721/82801_131.html
82801EB