Tyan Thunder K8SR (S2881) motherboard specifications

CPU socket type:

Socket 940

Tyan Thunder K8SR (S2881) CPU compatibility list

Part Number	Frequency	Features	BIOS	PCB	Notes
AMD Dual-Core Opteron
OSK260CBBOX OSK260FAA6CB	260HE	2 MB L2
OSP265FAA6CB OSA265CBBOX OSA265CBWOF OSA265FAA6CB	265	2 MB L2
OSK265CBBOX OSK265FAA6CB	265HE	2 MB L2
OSP270FAA6CB OSA270CBBOX OSA270CBWOF OSA270FAA6CB OST270FAA6CB	270	2 MB L2
OSK270CBBOX OSK270FAA6CB	270HE	2 MB L2
OST275FAA6CB OSP275FAA6CB OSA275CBBOX OSA275CBWOF OSA275FAA6CB	275	2 MB L2
OSA280CBBOX OSA280CBWOF OSA280FAA6CB OSP280FAA6CB OST280FAA6CB	280	2 MB L2
OSA285CBBOX OSA285CBWOF OSA285FAA6CB OST285FAA6CB	285	2 MB L2
OSA290CBBOX OSA290CBWOF OSA290FAA6CB	290	2 MB L2
AMD Opteron
OSA240CCO5AD OSA240AUBOX OSA240AUWOF OSA240CEP5AU OSADA240CCO5 OSA240BOX OSA240CEP5AL OSA240CCO5AH	240	1 MB L2
OSB240CSP5AU	240EE	1 MB L2
OSA242CCO5AH OSADA242CCO5 OSA242BLBOX OSA242BLWOF OSA242FAA5BL OSA242BOX OSA242CEP5AL OSA242CCO5AD OSA242AUBOX OSA242AUWOF OSA242CEP5AU	242	1 MB L2
OSA244BLBOX OSA244BLWOF OSA244FAA5BL OSA244AUBOX OSA244AUWOF OSA244CEP5AU OSA244BOX OSA244CEP5AL OSA244CCO5AH	244	1 MB L2
OSA246AUBOX OSA246AUWOF OSA246CEP5AU OSA246BOX OSA246CEP5AL OSA246BLBOX OSA246BLWOF OSA246FAA5BL	246	1 MB L2
OSK246AUBOX OSK246AUWOF OSK246BLBOX OSK246CMP5AU OSK246FAA5BL	246HE	1 MB L2
OSA248BOX OSA248CEP5AL OSA248AUBOX OSA248AUWOF OSA248CEP5AU OSA248BLBOX OSA248BLWOF OSA248FAA5BL	248	1 MB L2
OSK248BLBOX OSK248BLWOF OSK248FAA5BL	248HE	1 MB L2
OSA250AUBOX OSA250AUWOF OSA250CEP5AU OSA250BLBOX OSA250BLWOF OSA250FAA5BL OSP250CIP5AU OSP250FAA5BL	250	1 MB L2
OSP252FAA5BL OSA252BLBOX OSA252BLWOF OSA252FAA5BL	252	1 MB L2
OSA254BLBOX OSA254BLWOF OSA254FAA5BL OSP254FAA5BL	254	1 MB L2
OSA256BLBOX OSA256BLWOF OSA256FAA5BL	256	1 MB L2

When part numbers are not supplied by motherboard manufacturers, we use best guess approach to determine part numbers based on CPU model, frequency and features. In some cases our guess may be incorrect or incomplete. Please always verify part numbers before committing to buying the CPU.