Editing Opteron (section)

==Issues==

===Opteron without Optimized Power Management===
AMD released some Opteron processors without Optimized Power Management (OPM) support, which use DDR memory. The following table describes those processors without OPM.

{| class="wikitable" style="margin: 1em auto 1em auto"
! colspan="2" |P-state

freq.

(GHz)
! rowspan="2" |Model
! rowspan="2" |Package-
socket
! rowspan="2" |Core #
! rowspan="2" |TDP
(W)
! rowspan="2" |Manufacturing <br />process
! rowspan="2" |Part number (OPN)
|-
! scope="col" | Max
! scope="col" | Min
|-
| rowspan="3" | 1.4 || rowspan="10" | N/A || 140 || rowspan="10" | [[Socket 940]] || rowspan="8" | 1 || rowspan="6" | 82.1 || rowspan="6" | [[130 nm]] || OSA140CEP5AT
|-
| 240 || OSA240CEP5AU
|-
| 840 || OSA840CEP5AV
|-
| rowspan="7" | 1.6 || 142 || OSA142CEP5AT
|-
| 242 || OSA242CEP5AU
|-
| 842 || OSA842CEP5AV
|-
| 242 || rowspan="2" | 85.3 || rowspan="4" | [[90 nm]]|| OSA242FAA5BL
|-
| 842 || OSA842FAA5BM
|-
| 260 || rowspan="2" | 2 || rowspan="2" | 55.0 || OSK260FAA6CB
|-
| 860 || OSK860FAA6CC
|}

===Opteron recall (2006)===
AMD recalled some E4 stepping-revision single-core Opteron processors, including ×52 (2.6&nbsp;GHz) and ×54 (2.8&nbsp;GHz) models which use DDR memory. The following table describes affected processors, as listed in AMD Opteron ×52 and ×54 Production Notice of 2006.<ref name=opteron-prod-notice>
{{cite press release
  | title = AMD Opteron Processor Models ×52 and ×54 Production Notice
  | publisher=[[Advanced Micro Devices]]
  | date = April 2006
  | url = https://www.amd.com/us-en/assets/content_type/DownloadableAssets/40820_PUB_AMD_Opteron_Processor_Production_Notice_rev_3_08.pdf
  | access-date = November 30, 2006
}}</ref>

{| class="wikitable" style="margin: 1em auto 1em auto"
! scope="col" | Max
P-state<br />freq.
(GHz)
! scope="col" | Uni-
processor
! scope="col" | Dual
processor
! scope="col" | Multi-
processor
! scope="col" | Package-
socket
|-
| 2.6 || 152 || 252 || 852 || rowspan="2" | [[Socket 940]]
|-
| 2.8 || N/A || 254 || 854 
|-
| 2.6 || 152 || colspan="2" rowspan="2" | N/A || rowspan="2" | [[Socket 939]]
|-
| 2.8 || 154 
|}

The affected processors may produce inconsistent results if three specific conditions occur simultaneously:
* The execution of floating point-intensive code sequences
* Elevated processor temperatures
* Elevated ambient temperatures

A software verification tool for identifying the AMD Opteron processors listed in the above table that may be affected under these specific conditions is available, only to AMD [[Original Equipment Manufacturer|OEM]] partners.{{Citation needed|date=July 2007}} AMD will replace those processors at no charge.{{Citation needed|date=July 2007}}