HPE P03178-B21 1000 Watt Power Supply

HPE P03178-B21 1000W Flex Slot Titanium Hot Plug Power Supply Kit

P03178-B21 is the option kit number for the HPE 1000W Flex Slot Titanium Hot Plug Power Supply. It sits between the 800W and 1600W Flex Slot units, giving extra headroom for busy 1U and 2U ProLiant servers while still running from a normal office or data centre circuit at any voltage from 100 to 240V.

The Titanium label is the important part. This is the highest 80 PLUS efficiency grade, and HPE’s own figures put the unit at up to about 95% efficiency on high line input. Less power lost as heat means lower running costs and a little less work for the cooling in a full rack.

Euroland IT Store offers P03178-B21 in New and Refurbished condition, subject to availability. The price and warranty for each are shown when you choose the condition.

Key Features At A Glance

• 1000W rated output in the compact Flex Slot format
• 80 PLUS Titanium, the top efficiency grade
• Full 1000W on both low line and high line AC input
• Hot plug, ready for 1+1 redundant pairs
• Designed for ProLiant Gen10, Gen10 Plus and Gen11 platforms
• Tool free fitting in the rear power bay

Option Kit, Spare And Label Numbers

HPE gives the same supply more than one number depending on how it is bought. P03178-B21 is the option kit used when configuring or upgrading a server. When the unit is replaced under a service contract, HPE supplies it as spare part P44412-001, and both numbers share the generic part number P03159-001. Spares references also record P03160-001 as the HPE model number and PS-1102-5C on the unit label.

If you are matching a supply that is already installed, the label usually shows the spare or generic number rather than the -B21 kit number. Any of these numbers identifies the same 1000W Titanium supply, so you can quote whichever one you can read.

Power Output Across The Input Range

Some high wattage Flex Slot supplies drop their rating or refuse to run on 100 to 127V input. The 1000W Titanium unit does not. HPE’s QuickSpecs list a full 1000W output at every input voltage from 100V to 240V, with efficiency rising from about 91.2% at 100V to about 95.3% at 240V. On UK 230V mains HPE quotes about 95.2%.

When planning redundancy, size the server so that one 1000W supply can carry the whole load. HPE recommends that every supply in one server has the same output and efficiency rating, because mixing models can limit or disable power features, including redundancy. If you are moving from 800W to 1000W, change both supplies.

When To Choose 1000W Instead Of 800W

An 800W unit is fine for many dual processor builds. The 1000W Titanium kit makes sense when a server has high TDP processors, a full set of drives, GPUs or accelerators, or several high power network cards. HPE Power Advisor will show the expected load for your exact configuration and is the safest way to decide.

New P03178-B21 Power Supply Kit

The New option suits fresh server builds and planned upgrades where you want an unused unit. Select it to see the current warranty and stock status.

Refurbished P03178-B21 Power Supply Kit

The Refurbished option is a pre-owned HPE unit for replacing a failed supply or adding redundancy at a lower cost. Its warranty is shown once the condition is selected.

P03178-B21 Technical Specifications

Compatibility

HPE lists this kit for ProLiant Gen10, Gen10 Plus and Gen11 servers, selected Apollo Gen10 and Gen10 Plus systems, and HPE Alletra 4100 storage servers. Spares references name the following models:

• ProLiant DL360 Gen10 Plus
• ProLiant DL380 Gen10 and DL380 Gen10 Plus
• ProLiant DL380 Gen11

Our listing also names the DL360 Gen10. As support can vary by model, check the QuickSpecs for your server or send us the details and we will confirm.

Related Products

• HPE P44412-001 1000W Titanium spare power supply
• HPE 865438-B21 800W Flex Slot Titanium supply
• Refurbished HPE 865414-B21 800W Platinum supply
• HPE P39384-001 1600W Flex Slot Platinum spare
• HPE ProLiant DL360 Gen10 8SFF CTO server
• HPE ProLiant DL380 CTO chassis P52534-B21
• Browse all HPE parts

Checking Before You Order

• Look for P03178-B21, P44412-001 or P03159-001 on the supply label or in your order records
• Make sure the label reads 1000W and Titanium
• Confirm the server is Gen10, Gen10 Plus or Gen11 and uses Flex Slot power bays
• Check that the second supply in the server is the same model, or plan to replace both

Buying P03178-B21 In The UK

We deliver across the UK, with delivery options shown at checkout. To confirm compatibility first, send us your server model, serial number and the text on your current power supply label.

Frequently Asked Questions

What is the difference between P03178-B21 and P44412-001?

They are the same 1000W Titanium supply under two numbers. P03178-B21 is the option kit for upgrades, and P44412-001 is the HPE spare used for replacements.

Can the P03178-B21 run on 110V or 120V power?

Yes. HPE rates it at the full 1000W from 100V to 240V input. Efficiency is a little lower on low line, at about 92.7% on 120V.

Can I pair one 1000W supply with an existing 800W supply?

HPE recommends that all supplies in one server have the same output and efficiency rating. Mixing them can limit power features such as redundancy, so fit two 1000W units.

Is the P03178-B21 suitable for my ProLiant Gen11 server?

HPE lists the kit for ProLiant Gen10, Gen10 Plus and Gen11 servers. Support varies by model, so check your server’s QuickSpecs or send us the model and serial number.

Where can I see the warranty for a new or refurbished unit?

The warranty is displayed on the product page once you select New or Refurbished. UK delivery options appear at checkout.