Well, since Intel doesn't officially support Penryn in 900series chipsets, I decided to make a list of all the motherboards that work with the new 45nm CPUs but hasn't official support. link
Core2 Duo Wolfdale CPUs are offically supported by G31,G33,G35,P31,P35,Q33,Q35,X38.
Core2 Quad Yorkfield CPUs are officially supported by G33,G35,P35,Q33,Q35,X38.
Core2 Extreme Yorkfield CPUs are officially supported by P35,X38.
However, the following chipsets have some motherboards compatible with Penryn (most of them through overclocking):
945G/GC, 975X, P965 & G965
If you are currently running a Wolfdale or Yorkfield CPU in one of the following motherboards I will appreciate you post experiences, overclocking, performance, benchmarks etc. This way we could verify its compatibility and provide support to the community.
ABIT
P965
[*]IB9 unknown
[*]AB9 unknown
[*]AB9 Pro unknown
[*]AB9 WiFi unknown
[*]AB9 QuadGT unknown
ASRock
P965
[*]4Core1333-Viiv :thumbsup: since BIOS P1.40
945G/945GC A2 Wolfdale only
[*]Conroe1333-eSATA2 :thumbsup: since BIOS P1.50
[*]Conroe1333-1394 :thumbsup: since BIOS P1.40
[*]ConRoe1333-DVI/H :thumbsup: since BIOS P2.00
[*]ConRoe1333-DVI/H R2.0 :thumbsup: since BIOS P2.00
[*]ConRoe1333-D667 R1.0 :thumbsup: since BIOS P1.60
[*]ConRoe1333-D667 R2.0 :thumbsup: since BIOS P1.60
[*]2Core1333-2.66G :thumbsup: since BIOS P1.10
[*]2Core1333DVI-2.66G :thumbsup: since BIOS P1.20
[*]P4FSB1333-650 :thumbsup: since BIOS P1.10
[*]Wolfdale1333-GLAN :thumbsup:
[*]Wolfdale1333-GLAN R2.0 :thumbsup:
[*]Wolfdale1333-GLAN/M :thumbsup:
[*]Wolfdale1333-GLAN/M2 :thumbsup:
[*]Wolfdale1333-DVI :thumbsup:
[*]Wolfdale1333-D667 :thumbsup:
[*]Wolfdale1333-D667 R2.0 :thumbsup:
[*]ConRoe1333-GLAN unknown
[*]ConRoe945G-DVI unknown
[*]2Core1066-2.13G unknown
ASUS
P965
[*]P5B :thumbsup: since BIOS 1803
[*]P5B Deluxe :thumbsup: since beta BIOS 1226
[*]P5B Deluxe/WiFi-AP :thumbsup: since beta BIOS 1226
[*]P5B-Plus :thumbsup: since beta BIOS 1002
[*]P5B Plus Vista Edition :thumbsup: since BIOS 1002
[*]P5B Premium Vista Edition :thumbsup: since BIOS 0902
[*]P5B-E :thumbsup: since beta BIOS 1704
[*]P5B-E Plus :thumbsup: since beta BIOS 0627
[*]Commando :thumbsup: since BIOS 1605
[*]P5B SE :thumbsup: since BIOS 0709
[*]P5B/Telesky unknown
975X
[*]P5W DH Deluxe :thumbsup: since BIOS 2504
[*]P5WDG2 WS Professional unknown
[*]P5WDG2 PRO/WiFi-AP unknown
[*]P5W64 Professional unknown
[*]P5WD2-E Premium unknown
G965/Q965
[*]P5B-V unknown
[*]P5B-VM unknown
[*]P5B-VM SE unknown
[*]P5B-VM DO DH Deluxe unknown
DFI
P965
[*]P965-S unknown
975X
[*]975X/G unknown
MSI
P965
[*]P965 Neo :thumbsdown: uncompatible link
[*]P965 Neo-F V2 :thumbsup: since BIOS 3.8
[*]P965 Neo2 :thumbsup: since BIOS 3.8
[*]P965 Platinum :thumbsup: since BIOS 1.8
975X
[*]975X Platinum :thumbsdown: uncompatible link
[*]975X Platinum PowerUp Edition :thumbsdown: uncompatible link
G965/Q965
[*]G965 Neo2 :thumbsdown: uncompatible link
[*]G965M :thumbsdown: uncompatible link
[*]G965MDH :thumbsdown: uncompatible link
[*]Q965MDO :thumbsdown: uncompatible link
GIGABYTE
P965
[*]GA-965P-S3 (all revisions) :thumbsup: since beta BIOS F13i
[*]GA-965P-DS3 (all revisions) :thumbsup: since beta BIOS F13o
[*]GA-965P-DS3P (all revisions) :thumbsup: since beta BIOS F6g
[*]GA-965P-DS4 (all revisions) :thumbsup: since beta BIOS F11f
[*]GA-965P-DQ6 (all revisions) :thumbsup: since beta BIOS F12j
975X
[*]GA-G1975X unknown
[*]GA-G1975X-C unknown
G965/Q965
[*]GA-965G-DS3 (all revisions) :thumbsup: since beta BIOS F10f
[*]GA-965G-DS4 (all revisions) :thumbsup: since beta BIOS F9f
[*]GA-965GM-S2 unknown
[*]GA-965GM-DS2 unknown
[*]GA-965QM-DS2 unknown
unknown motherboards are expected to be uncompatible with the CPU because all compatible boards required a BIOS update, but since I could not verify it or maybe a new BIOS is being developed it remains unknown if they are or not compatible
beta BIOS means the motherboard may have some stability/performance problems when using the new CPUs
Please feel free to provide more information of other motherboards or correct whatever is wrong. I will try to keep it updated.
Core2 Duo Wolfdale CPUs are offically supported by G31,G33,G35,P31,P35,Q33,Q35,X38.
Core2 Quad Yorkfield CPUs are officially supported by G33,G35,P35,Q33,Q35,X38.
Core2 Extreme Yorkfield CPUs are officially supported by P35,X38.
However, the following chipsets have some motherboards compatible with Penryn (most of them through overclocking):
945G/GC, 975X, P965 & G965
If you are currently running a Wolfdale or Yorkfield CPU in one of the following motherboards I will appreciate you post experiences, overclocking, performance, benchmarks etc. This way we could verify its compatibility and provide support to the community.
ABIT
P965
[*]IB9 unknown
[*]AB9 unknown
[*]AB9 Pro unknown
[*]AB9 WiFi unknown
[*]AB9 QuadGT unknown
ASRock
P965
[*]4Core1333-Viiv :thumbsup: since BIOS P1.40
945G/945GC A2 Wolfdale only
[*]Conroe1333-eSATA2 :thumbsup: since BIOS P1.50
[*]Conroe1333-1394 :thumbsup: since BIOS P1.40
[*]ConRoe1333-DVI/H :thumbsup: since BIOS P2.00
[*]ConRoe1333-DVI/H R2.0 :thumbsup: since BIOS P2.00
[*]ConRoe1333-D667 R1.0 :thumbsup: since BIOS P1.60
[*]ConRoe1333-D667 R2.0 :thumbsup: since BIOS P1.60
[*]2Core1333-2.66G :thumbsup: since BIOS P1.10
[*]2Core1333DVI-2.66G :thumbsup: since BIOS P1.20
[*]P4FSB1333-650 :thumbsup: since BIOS P1.10
[*]Wolfdale1333-GLAN :thumbsup:
[*]Wolfdale1333-GLAN R2.0 :thumbsup:
[*]Wolfdale1333-GLAN/M :thumbsup:
[*]Wolfdale1333-GLAN/M2 :thumbsup:
[*]Wolfdale1333-DVI :thumbsup:
[*]Wolfdale1333-D667 :thumbsup:
[*]Wolfdale1333-D667 R2.0 :thumbsup:
[*]ConRoe1333-GLAN unknown
[*]ConRoe945G-DVI unknown
[*]2Core1066-2.13G unknown
ASUS
P965
[*]P5B :thumbsup: since BIOS 1803
[*]P5B Deluxe :thumbsup: since beta BIOS 1226
[*]P5B Deluxe/WiFi-AP :thumbsup: since beta BIOS 1226
[*]P5B-Plus :thumbsup: since beta BIOS 1002
[*]P5B Plus Vista Edition :thumbsup: since BIOS 1002
[*]P5B Premium Vista Edition :thumbsup: since BIOS 0902
[*]P5B-E :thumbsup: since beta BIOS 1704
[*]P5B-E Plus :thumbsup: since beta BIOS 0627
[*]Commando :thumbsup: since BIOS 1605
[*]P5B SE :thumbsup: since BIOS 0709
[*]P5B/Telesky unknown
975X
[*]P5W DH Deluxe :thumbsup: since BIOS 2504
[*]P5WDG2 WS Professional unknown
[*]P5WDG2 PRO/WiFi-AP unknown
[*]P5W64 Professional unknown
[*]P5WD2-E Premium unknown
G965/Q965
[*]P5B-V unknown
[*]P5B-VM unknown
[*]P5B-VM SE unknown
[*]P5B-VM DO DH Deluxe unknown
DFI
P965
[*]P965-S unknown
975X
[*]975X/G unknown
MSI
P965
[*]P965 Neo :thumbsdown: uncompatible link
[*]P965 Neo-F V2 :thumbsup: since BIOS 3.8
[*]P965 Neo2 :thumbsup: since BIOS 3.8
[*]P965 Platinum :thumbsup: since BIOS 1.8
975X
[*]975X Platinum :thumbsdown: uncompatible link
[*]975X Platinum PowerUp Edition :thumbsdown: uncompatible link
G965/Q965
[*]G965 Neo2 :thumbsdown: uncompatible link
[*]G965M :thumbsdown: uncompatible link
[*]G965MDH :thumbsdown: uncompatible link
[*]Q965MDO :thumbsdown: uncompatible link
GIGABYTE
P965
[*]GA-965P-S3 (all revisions) :thumbsup: since beta BIOS F13i
[*]GA-965P-DS3 (all revisions) :thumbsup: since beta BIOS F13o
[*]GA-965P-DS3P (all revisions) :thumbsup: since beta BIOS F6g
[*]GA-965P-DS4 (all revisions) :thumbsup: since beta BIOS F11f
[*]GA-965P-DQ6 (all revisions) :thumbsup: since beta BIOS F12j
975X
[*]GA-G1975X unknown
[*]GA-G1975X-C unknown
G965/Q965
[*]GA-965G-DS3 (all revisions) :thumbsup: since beta BIOS F10f
[*]GA-965G-DS4 (all revisions) :thumbsup: since beta BIOS F9f
[*]GA-965GM-S2 unknown
[*]GA-965GM-DS2 unknown
[*]GA-965QM-DS2 unknown
unknown motherboards are expected to be uncompatible with the CPU because all compatible boards required a BIOS update, but since I could not verify it or maybe a new BIOS is being developed it remains unknown if they are or not compatible
beta BIOS means the motherboard may have some stability/performance problems when using the new CPUs
Please feel free to provide more information of other motherboards or correct whatever is wrong. I will try to keep it updated.