The Lenovo ThinkCentre M91 and M91p are premium enterprise-class desktop computers optimized for high performance and manageability. M91 and M91p are the Lenovo’s first enterprise-class ThinkCentres with the 2nd generation Intel® Core™ processor. These easily manageable desktops include Intel® vPro™ with Intel® Active Management Technology™ (AMT). The Intel® AMT™ allows authorized IT personal to remotely access, diagnose, fix, manage and secure business desktops. These superior features also deliver on maintenance cost and time savings. The Intel® Core™ processors, employed by ThinkCentre M91 and M91p come with Hyper-Threading and Turbo Boost to multitask faster and deliver powerful performance. The ThinkCentre M91 and M91p provide smart technology to keep you competitive while optimizing your budget and business operation.
These highly scalable ThinkCentres are available in different form factors (tower and small) and can be customized to your need. The small form factor (SFF) has RAID with ODD support functions as a backup mechanism and to secure data. In addition, the M91 and M91p desktops will soon be available in ultra-small form factor (USFF).
The M91 and M91p are the fastest ThinkCentre desktops with SATA III hard disk drive and USB 3.0. The SATA III enables data transfer at the rate of 6GB per second, which is twice as fast as SATA II. The USB 3.0 transfers data at the speed of 625MB per second − ten times as fast as
USB 2.0. ThinkCentre M91 and M91p are highly productive, supporting up to four independent displays (with discrete graphics), enabling almost an extra hour of productivity each day.
Processor special features | Intel 64 | Yes |
 | Enhanced Intel SpeedStep Technology | Yes |
| Embedded options available | Yes |
| Intel® InTru™ 3D Technology | Yes |
| Intel® Insider™ | Yes |
| Intel® Clear Video HD Technology (Intel® CVT HD) | Yes |
| Intel VT-x with Extended Page Tables (EPT) | Yes |
| Idle States | Yes |
| Thermal Monitoring Technologies | Yes |
| Intel® AES New Instructions (Intel® AES-NI) | Yes |
| Intel Trusted Execution Technology | Yes |
| Execute Disable Bit | Yes |
| Intel FDI Technology | Yes |
| Intel Flex Memory Access | Yes |
| Intel Fast Memory Access | Yes |
| Intel Enhanced Halt State | Yes |
| Processor package size | 37.5 x 37.5 mm |
| Supported instruction sets | AVX |
| Processor code | SR00B |
| CPU configuration (max) | 1 |
| Intel Virtualization Technology for Directed I/O (VT-d) | Yes |
| Intel Identity Protection Technology version | 1.00 |
| Intel Virtualization Technology (VT-x) | Yes |
| Intel Dual Display Capable Technology | Yes |
| Processor ARK ID | 52213 |
| Intel® Turbo Boost Technology | 2.0 |
| Intel® Hyper Threading Technology (Intel® HT Technology) | Yes |
| Intel® Quick Sync Video Technology | Yes |
| Intel® Identity Protection Technology (Intel® IPT) | Yes |
Other features | Networking features | Gigabit Ethernet |
| Compliance industry standards | IEEE 802.3, IEEE 802.3u, IEEE 802.3ab |
| Graphics card family | Intel |
| Intel segment tagging | Enterprise, Professional |
Storage | Total storage capacity | 500 GB |
| Optical drive type | DVD-RW |
| Number of HDDs installed | 1 |
| HDD capacity | 500 GB |
| HDD interface | SATA |
| HDD speed | 7200 RPM |
| RAID levels | 0, 1 |
Features | Images Type Map | <div><img src="https://ark.intel.com/inc/images/diagrams/diagram-18.gif" title="Block Diagram" /></div> |
Graphics | On-board graphics card | Yes |
| On-board graphics card model | Intel® HD Graphics 2000 |
| On-board graphics card family | Intel® HD Graphics |
| On-board graphics card base frequency | 850 MHz |
| On-board graphics card dynamic frequency (max) | 1350 MHz |
| Number of displays supported (on-board graphics) | 2 |
| On-board graphics card ID | 0x102 |
| Maximum graphics card memory | 0.5 GB |
Software | Operating system installed | Windows 7 Professional |
| Operating system architecture | 64-bit |
Sustainability | Sustainability certificates | RoHS, ENERGY STAR |
Packaging content | Mouse included | Yes |
| Keyboard included | Yes |
Processor | Processor family | Intel® Core™ i7 |
| Processor manufacturer | Intel |
| Processor model | i7-2600 |
| Processor frequency | 3.4 GHz |
| Processor generation | 2nd gen Intel® Core™ i7 |
| Processor cores | 4 |
| Processor boost frequency | 3.8 GHz |
| Processor socket | LGA 1155 (Socket H2) |
| Processor cache | 8 MB |
| Processor cache type | Smart Cache |
| Processor threads | 8 |
| System bus rate | 5 GT/s |
| Bus type | DMI |
| Processor lithography | 32 nm |
| Processor operating modes | 64-bit |
| Processor series | Intel Core i7-2600 Desktop Series |
| Processor codename | Sandy Bridge |
| Thermal Design Power (TDP) | 95 W |
| Tcase | 72.6 °C |
| PCI Express slots version | 2.0 |
| Maximum number of PCI Express lanes | 16 |
| Number of processors installed | 1 |
| Stepping | D2 |
| CPU multiplier (bus/core ratio) | 34 |
| Maximum internal memory supported by processor | 32 GB |
| Memory types supported by processor | DDR3-SDRAM |
| Memory clock speeds supported by processor | 1066,1333 MHz |
| Memory bandwidth supported by processor (max) | 21 GB/s |
Network | Ethernet LAN | Yes |
| Ethernet LAN data rates | 10,100,1000 Mbit/s |
| Cabling technology | 10/100/1000Base-T(X) |
| Wake-on-LAN ready | Yes |
Memory | Internal memory | 2 GB |
| Maximum internal memory | 16 GB |
| Internal memory type | DDR3-SDRAM |
| Memory layout (slots x size) | 1 x 2 GB |
| Memory slots | 4x DIMM |
| Memory clock speed | 1333 MHz |
| Memory channels | Dual-channel |
Weight & dimensions | Width | 175 mm |
| Depth | 442 mm |
| Height | 414 mm |
| Weight | 11000 g |
Design | Chassis type | Tower |
| Product colour | Black |
| Cable lock slot | Yes |
| Cable lock slot type | Kensington |
Ports & interfaces | USB 2.0 ports quantity | 8 |
| VGA (D-Sub) ports quantity | 1 |
| DisplayPorts quantity | 1 |
| Ethernet LAN (RJ-45) ports | 1 |
| Microphone in | Yes |
| Headphone outputs | 1 |
| Line-out | Yes |
| Line-in | Yes |
| DC-in jack | Yes |
| Serial ports quantity | 1 |
Power | Power supply | 280 W |
Performance | Product type | PC |
| Motherboard chipset | Intel® Q67 Express |
| Audio system | HD |
Expansion slots | PCI Express x1 slots | 1 |
| PCI Express x16 slots | 1 |
| PCI slots | 2 |