雙 CPU 要同一種型號嗎 - PCDVD數位科技討論區

quickcccc

Advance Member

加入日期: Oct 2006

文章: 457

雙 CPU 要同一種型號嗎

E5 2680 , E5 2690 不同型號可以混插在主機板嗎

還是

E5 2680 , E5 2680 2顆同型號在可以呢

另外如果可以混插

E5 2620 (6c 2G) , E5 2680 (8c 2.7G) 可以混插在同一雙 cpu 主機板嗎

如果可以, 他們會各自以 2G , 2.7G 不同頻率跑嗎? 還是會自動統一降到 2G 跑呢

2012-12-21, 10:20 AM #1

cmwang

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加入日期: May 2002

您的住址: 板橋

文章: 5,106

絕大部份server board的BIOS都會要求兩顆CPU要是同型號的,遇到不同型號的話至少會有錯誤訊息,有些甚至會直接卡死在POST,拒絕進OS(雖然理論上不是不能這麼用,但實際上沒幾個人會這麼用

),您的板子會怎麼處理就得看您自己試了才知道了

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__________________
士大夫之無恥,是謂國恥

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2012-12-21, 10:35 AM #2

cmwang

Elite Member

加入日期: May 2002

您的住址: 板橋

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鵝手邊沒有I社的design guide,剛看了一下A社的BKDG for AMD Family 15h Models 00h-0Fh Processors是這麼寫的....

引用:

2.5.2.3 Mixed Frequency and Power P-state Configuration Processors with different CoreCOF, NBCOF, and power can be mixed in a system. All NBs must have the same number of P-states. All cores must have the same number of software P-states and all equivalent software P-states must have identical ACPI CoreFreq and Power settings.See 2.5.2.1.2.1 [Software P-state Numbering] and 2.5.2.1.11.2 [_PSS (Performance Supported States)].

‧ If MSRC001_00[6B:64][PstateEn, CpuFid, CpuDid, IddDiv, and IddValue] are identical for all software Pstates on all processors, then no BIOS modifications to MSRC001_00[6B:64] are necessary.

‧ If MSRC001_00[6B:64][PstateEn, CpuFid, or CpuDid] for any software P-state differs between processors,sections 2.5.2.3.3 [Mixed Frequency and Power P-State Configuration Rules] and 2.5.2.3.4 [Mixed Frequency and Power P-State Configuration Sequence] are used to determine the common set of P-states and define the required BIOS modifications to MSRC001_00[6B:64].

‧ If MSRC001_00[6B:64][IddDiv or IddValue] for any software P-state differs between processors and MSRC001_00[6B:64][PstateEn, CpuFid, and CpuDid] for all software P-states do not differ between processors,then 2.5.2.3.2 [Mixed Power P-State Configuration Sequence] defines the required BIOS modifications to MSRC001_00[6B:64].

‧ If D18F5x1[6C:60][NbFid, NbDid, NbPstateEn] are identical for all NB P-states on all processors, then no BIOS modifications to D18F5x1[6C:60] are necessary. Otherwise, 2.5.2.3.1 [Mixed Northbridge Frequency Configuration Sequence] specifies the required BIOS modifications to D18F5x1[6C:60].

‧ For all 16-bit coherent links that use 4-bit time operations, if the Northbridge and link frequencies do not meet the requirements in 2.12.4 [Link Bandwidth Requirements], BIOS must modify the link frequencies such that the requirements are met. This should be performed after 2.5.2.3.1 [Mixed Northbridge Frequency Configuration Sequence].

由以上敘述看來是可以混搭的,但會變成以低速/低功耗者為準,而且還有不少限制,所以通常不建議這麼用,不知I社是否也是如此就是了

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此文章於 2012-12-21 03:25 PM 被 cmwang 編輯.

2012-12-21, 03:24 PM #3

quickcccc Advance Member 加入日期: Oct 2006 文章: 457	感謝您的訊息 ^^
2012-12-21, 07:33 PM #4

sorrojvr Golden Member 加入日期: Apr 2008 文章: 2,556	要看板子啦... 這2顆沒有差很多,要求不高的板子也許可以電腦的東西,2個不同規裝在一起,一定是跑較差那個設備~~
2012-12-23, 10:46 AM #5