E5540 Computer Processors 169

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Part	Manufacturer	Brand Name	Product Line	Product Model	Product Type	Limited Warranty	L3 Cache	Product Series	Packaged Quantity	L2 Cache	Thermal Specification	Processor Core	Thermal Design Power	Cooler Type	Processor Technology	Processor Manufacturer	Environmental Certification	Environmentally Friendly	Maximum Cache Level	Clock Speed	Platform Supported	Depth	Process Technology	Width	Package Type	L1 Cache	Overclocking Speed	Processor Socket	QuickPath Interconnect	Product Condition	64-bit Processing	Input Voltage	Maximum Cache	Product Name
505880-L21	HP Inc.	HP	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
492244-B21-RF	HP - Ingram Certified Pre-Owned	HP - Ingram Certified Pre-Owned	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
509322-B21	HP-IMSourcing DS	HP-IMSourcing DS	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
507794-B21	HPE Sourcing	HPE Sourcing	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
46M1084	IBM-IMSourcing DS	IBM-IMSourcing DS	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Turbo Boost Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
49Y5163-RF	IBM - IMSourcing Certified Pre-Owned	IBM - IMSourcing Certified Pre-Owned	Xeon DP	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W		Turbo Boost Technology, Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel				2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s	Refurbished	Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
495936-B21	HP - Ingram Certified Pre-Owned	HP - Ingram Certified Pre-Owned	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s	Pre-owned	Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
7944-AC1-7698	IBM Corporation	IBM	Xeon	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W	Fan Heatsink	Turbo Boost Technology, Hyper-Threading Technology, Virtualization Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology, Demand Based Switching	Intel				2.53 GHz	PC	45 mm	45 nm	42.5 mm		256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon Quad-core E5540 2.53GHz Processor Upgrade
505880-B21-RF	HPE Sourcing	HPE Sourcing	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel				2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s	Pre-owned	Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
505880R-B21	HP Inc.	HP	Xeon	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W			Intel				2.53 GHz		42.5 mm	45 nm	45 mm			2.8 GHz	Socket B LGA-1366	5.86 GT/s	Refurbished	Yes			Xeon Quad-core E5540 2.53GHz Server Processor Upgrade
492244-B21	HPE-IMSourcing	HPE-IMSourcing	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
505880-B21	HPE-IMSourcing DS	HPE-IMSourcing DS	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
NF150AA	HP - Ingram Certified Pre-Owned	HP - Ingram Certified Pre-Owned	Xeon	E5540	Processor Upgrade	1 Year	8 MB	5500	1	1 MB	76 °C	Quad-core (4 Core)	80 W			Intel				2.53 GHz		42.5 mm	45 nm	45 mm			2.8 GHz	Socket FCLGA1366	5.86 GT/s	Pre-owned	Yes	1.35 V DC		Xeon Quad-core E5540 2.53GHz Server Processor Upgrade
505880-B21	Hewlett Packard Enterprise	HPE	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
507794-B21	Hewlett Packard Enterprise	HPE	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
505880-B21-RF	HPE - IMSourcing Certified Pre-Owned	HPE - IMSourcing Certified Pre-Owned	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s	Refurbished	Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
X8332A	Sun Microsystems	Sun	Xeon DP	E5540	Processor Upgrade		8 MB	5500	1	1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
507849-B21	Hewlett Packard Enterprise	HPE	Xeon	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W	Heatsink	Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology, Turbo Boost Technology, Demand Based Switching	Intel	RoHS	Yes		2.53 GHz	PC	4.5 cm	45 nm	4.25 cm		256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon Quad-core E5540 2.53GHz Server Processor Upgrade
46D1354	IBM-IMSourcing DS	IBM-IMSourcing DS	Xeon DP	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC	42.5 mm	45 nm	45 mm		256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
44T1884	Lenovo Group Limited	Lenovo	Xeon DP	E5540	Processor Upgrade	1 Year	8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
509322-B21	HPE-IMSourcing	HPE-IMSourcing	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
S26361-F3982-E253	Fujitsu	Fujitsu	Xeon DP	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
46D1354	IBM Corporation	IBM	Xeon DP	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC	42.5 mm	45 nm	45 mm		256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
507849-L21	HP Inc.	HP	Xeon DP	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W		Enhanced SpeedStep Technology, Extended Memory 64 Technology, Hyper-Threading Technology, Virtualization Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
49Y5163	Lenovo Group Limited	Lenovo	Xeon DP	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W		Turbo Boost Technology, Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel				2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
490461-B21	HPE Sourcing	HPE Sourcing	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
490461-B21	HPE-IMSourcing DS	HPE-IMSourcing DS	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
59Y3963	IBM-IMSourcing DS	IBM-IMSourcing DS	Xeon DP	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W	Fan Heatsink	Turbo Boost Technology, Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366			Yes	1.35 V DC		Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
46M1084-RF	IBM - IMSourcing Certified Pre-Owned	IBM - IMSourcing Certified Pre-Owned	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Turbo Boost Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s	Refurbished	Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
X6270-AA-14M2530	Sun Microsystems	Sun	Xeon DP	E5540	Processor Upgrade		8 MB	5500	1	1 MB	76 °C	Quad-core (4 Core)	80 W	Heatsink	Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
P4X-DPE5540-253-8M586	Supermicro Computer, Inc	Supermicro	Xeon DP	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
507849-B21#0D1	HP Inc.	HP	Xeon DP	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
490461-B21	HP-IMSourcing DS	HP-IMSourcing DS	Xeon	E5540	Processor Upgrade	1 Year	8 MB	5500	1	1 MB	76 °C	Quad-core (4 Core)	80 W			Intel				2.53 GHz		42.5 mm	45 nm	45 mm			2.8 GHz	Socket FCLGA1366	5.86 GT/s	Pre-owned	Yes	1.35 V DC		Xeon Quad-core E5540 2.53GHz Server Processor Upgrade
490461-B21-RF	HPE - IMSourcing Certified Pre-Owned	HPE - IMSourcing Certified Pre-Owned	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s	Refurbished	Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
505880-B21#0D1	HP Inc.	HP	Xeon DP	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
BX80602E5540-RF	Intel - IMSourcing Certified Pre-Owned	Intel - IMSourcing Certified Pre-Owned	Xeon DP	E5540	Processor				1	8 MB		Quad-core (4 Core)		Fan Heatsink, Heatsink		Intel	RoHS	Yes		2.53 GHz	PC							Socket B LGA-1366	5.86 GT/s	Refurbished	Yes			Xeon DP Quad-core E5540 2.53GHz Processor
495936-B21	HP Inc.	HP	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
NF129AV	HP Inc.	HP	Xeon DP	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
46D1354	Lenovo Group Limited	Lenovo	Xeon DP	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC	42.5 mm	45 nm	45 mm		256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
509322-B21	HPE Sourcing	HPE Sourcing	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
508343-B21-RF	HP Inc.	HP	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s	Refurbished	Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
BX80602E5540	Intel-IMSourcing	Intel-IMSourcing	Xeon	E5540	Processor		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology, Demand Based Switching, Turbo Boost Technology, Hyper-Threading Technology	Intel				2.4 GHz	PC	45 mm	45 nm	42.5 mm	Retail	256 KB	2.8 GHz	Socket B LGA-1366	5.86 GT/s		Yes	1.35 V DC		Xeon Quad-core E5540 2.53GHz Server Processor
505880-B21-RF	Ingram - Certified Pre-Owned	Ingram - Certified Pre-Owned	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			HP XEON E5540 PROC KIT FOR DL360 G6
507849-B21-RF	HPE - IMSourcing Certified Pre-Owned	HPE - IMSourcing Certified Pre-Owned	Xeon	E5540	Processor Upgrade		8 MB	5500		1 MB	76 °C	Quad-core (4 Core)	80 W	Heatsink	Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology, Turbo Boost Technology, Demand Based Switching	Intel		Yes		2.53 GHz	PC	4.5 cm	45 nm	4.25 cm		256 KB		Socket B LGA-1366	5.86 GT/s	Refurbished	Yes	1.35 V DC		Xeon Quad-core E5540 2.53GHz Server Processor Upgrade
509322-B21-RF	HPE - IMSourcing Certified Pre-Owned	HPE - IMSourcing Certified Pre-Owned	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s	Refurbished	Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
508343-B21	HPE-IMSourcing DS	HPE-IMSourcing DS	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
46M1084	Lenovo Group Limited	Lenovo	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Turbo Boost Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes	L3	2.53 GHz	PC	42.5 mm	45 nm	45 mm		256 KB		Socket B LGA-1366	5.86 GT/s		Yes	1.99 V DC	8 MB	Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade
495936-B21	HPE Sourcing	HPE Sourcing	Xeon DP	E5540	Processor Upgrade		8 MB			1 MB	76 °C	Quad-core (4 Core)	80 W		Virtualization Technology, Hyper-Threading Technology, Extended Memory 64 Technology, Enhanced SpeedStep Technology	Intel	RoHS	Yes		2.53 GHz	PC		45 nm			256 KB		Socket B LGA-1366	5.86 GT/s		Yes			Xeon DP Quad-core E5540 2.53GHz - Processor Upgrade

Computer Processors

Computer Processors, often referred to simply as processors or CPUs (Central Processing Units), are silicon chips that serve as the brain of a computing device. These integrated circuits are responsible for executing instructions and performing calculations in computers, smartphones, tablets, and other electronic devices. Microprocessors come in various architectures and designs, each optimized for specific applications and performance requirements. They typically include features such as multiple cores, advanced instruction sets, and power-saving technologies to deliver optimal performance and efficiency.