HPE ProLiant BL465c G7 Processors
Genuine HPE processor option kits for the HPE ProLiant BL465c G7, new and refurbished. The blade takes up to two AMD Opteron 6100 or 6200 Series processors on the AMD SR5690 and SP5100 chipsets, and each option kit contains one processor — so a two-socket build is two kits, not one.
BL465c G7 Processor Specifications
- Sockets: two, upgradeable from a single-processor blade to a dual-processor one
- Families: AMD Opteron 6100 and 6200 Series, in four-, eight-, twelve- and sixteen-core forms
- Cache: 6100 Series parts carry 512KB of level 2 per core and 12MB of level 3; 6200 Series parts carry eight 2MB level 2 blocks and 16MB of level 3
- Twelve-core kits stocked: Opteron 6174 at 2.2GHz, 6172 at 2.1GHz and the low-power 6164HE at 1.7GHz
- Eight-core kits stocked: Opteron 6136 at 2.4GHz, 6134 at 2.3GHz and the low-power 6128HE at 2.0GHz
- Kit contents: one processor per kit, complete with heatsink and fans; HPE builds a two-processor blade from one -L21 factory-integration kit and one -B21 kit of the same processor
The same processor is quoted at two different wattages, and both are right. The QuickSpecs gives Thermal Design Power — 115W for the Opteron 6174, 6172, 6136 and 6134, and 85W for the 6164HE and 6128HE — while HPE's kit descriptions give AMD's Average CPU Power for the same silicon, which is where the 80W and 65W figures on the part names come from.
Which Opteron Kit Suits the Workload?
| Class | Kits stocked | Cores and clock | Thermal design power |
|---|---|---|---|
| Twelve-core, standard | Opteron 6174, 6172 | 12 cores at 2.2GHz and 2.1GHz | 115W |
| Twelve-core, low power | Opteron 6164HE | 12 cores at 1.7GHz | 85W |
| Eight-core, standard | Opteron 6136, 6134 | 8 cores at 2.4GHz and 2.3GHz | 115W |
| Eight-core, low power | Opteron 6128HE | 8 cores at 2.0GHz | 85W |
You will see the same processor quoted at two different wattages, and neither figure is wrong. The QuickSpecs quotes Thermal Design Power — 115W for the 6174, 6172, 6136 and 6134, and 85W for the HE parts — while HPE's kit descriptions quote AMD's Average CPU Power for the same silicon, which is where the 80W and 65W numbers on the part names come from. The HE suffix is the signal that matters: a lower clock inside a smaller thermal envelope.
Choosing the Right BL465c G7 Processor
- A second processor unlocks the other half of the memory. With one CPU installed only eight of the sixteen DIMM slots are available, which is often the real reason to fill the second socket.
- Two sockets means two kits. BL465c G7 processor option kits contain one processor each, with its own heatsink and fans.
- -B21 is the field part. HPE's two-processor configurations pair an -L21 factory-integration kit with a -B21 kit of the same processor, so the -B21 is what goes into a blade already in service.
- Cores or clock, inside one thermal envelope. The 6174 gives twelve cores at 2.2GHz and the 6136 eight at 2.4GHz for the same 115W, so a clock-bound application and a thread-hungry one point in opposite directions.
- Wattage is an enclosure question here. The blade draws from the enclosure's power subsystem, and HPE specifies ten fans in a c7000 or six in a c3000 for this server blade.
Complete Your BL465c G7 Build
Filling the second socket is what makes the rest of the memory usable, so plan both together — see BL465c G7 memory. Also available: BL465c G7 hard drives and storage controllers, or the full BL465c G7 parts listing. Other Opteron blades: the four-socket BL685c G7 processors and the BL465c Gen8 processors that followed. Every model stocked is listed under HPE parts by server model.
BL465c G7 Processors FAQ
Which processors does the BL465c G7 support?
AMD Opteron 6100 and 6200 Series, up to two of them, in four-, eight-, twelve- and sixteen-core forms. The kits stocked for this blade are 6100 Series twelve-core and eight-core parts: the 6174, 6172, 6164HE, 6136, 6134 and 6128HE.
Does a BL465c G7 processor kit contain one processor or two?
One. HPE ProLiant BL465c G7 processor option kits contain a single processor, complete with heatsink and fans, so a two-socket upgrade is two kits.
Why is the same Opteron listed at 115W in one place and 80W in another?
They are two different measures of the same part. The QuickSpecs quotes Thermal Design Power, and HPE's kit descriptions quote AMD's Average CPU Power figure.
Does adding a second processor do anything besides add cores?
Yes. With only one processor installed, half of the sixteen DIMM slots are unavailable, so the second CPU is what opens the rest of the memory capacity.
What is the difference between a -B21 and a -L21 processor kit?
The -L21 kit is HPE's factory-integration part, used as the first processor in a configure-to-order blade; the -B21 is the option kit fitted in the field. HPE pairs one of each when a blade is built with two processors.
What does the HE in Opteron 6164HE mean?
It marks the low-power parts. The 6164HE gives twelve cores at 1.7GHz inside an 85W thermal design power, against 115W for the standard twelve-core parts.
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