Which servers does the H28RR fit?

It is the system board for the Dell PowerEdge R640. It does not fit other PowerEdge models.

Which CPUs does it support?

Two 2nd Gen Intel Xeon Scalable processors. First Gen Scalable chips are not the intended pairing, and 3rd Gen or later will not fit.

What memory does it take?

Up to 24 DDR4 DIMMs, RDIMM or LRDIMM, at 2933 MHz. Memory is not included.

Does it come with CPUs, heatsinks or memory?

No. The board is sold on its own; you supply processors, heatsinks, memory and any PERC or rNDC cards.

What expansion does it offer?

Three PCIe 3.0 slots, a dedicated PERC slot, an rNDC slot and four 1GbE LOM ports. It supports up to three single-width GPUs.

Is it worth it over replacing the whole server?

If the rest of your R640 is sound, a board swap keeps your existing CPUs, memory and drives. If the server is old and out of warranty, weigh the swap labor against a newer platform.

Where is the H28RR System Board Motherboard cheapest?

At aloinfousa.com, for $409.87, as of our latest check.

Dell

H28RR System Board Motherboard

Best price now

$409.87at aloinfousa.comChecked Nov 10

Prices are checked against each store and labelled with when.

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Dell discount code →

Dell

H28RR System Board Motherboard

Best price now

$409.87at aloinfousa.comChecked Nov 10

Prices are checked against each store and labelled with when.

Visit aloinfousa.com

Dell discount code →

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Price facts

Last seen at $409.87 at aloinfousa.com on Nov 10.

Our take on the H28RR System Board Motherboard

The Dell H28RR is the replacement system board for the PowerEdge R640 rack server. It carries two 2nd Gen Intel Xeon Scalable sockets, 24 DDR4 DIMM slots rated for 2933 MHz RDIMMs or LRDIMMs, three PCIe 3.0 slots plus dedicated PERC and rNDC slots, and four 1GbE LOM ports. It suits owners repairing or upgrading an existing R640 rather than anyone building a new server, since it fits only that chassis and generation. Compared with a whole replacement server, it is a targeted fix for a failed board or a CPU-generation upgrade.

Best forR640 owners replacing a failed motherboardUpgrading an R640 to 2nd Gen Xeon Scalable CPUsRestoring an out-of-warranty R640 to serviceIT teams keeping spare boards for R640 fleets

Pros

Fits the PowerEdge R640 chassis directly
Two Xeon Scalable sockets for dual-CPU builds
24 DIMM slots support large memory configurations
Dedicated PERC and rNDC slots keep expansion PCIe free
Four built-in 1GbE LOM ports

Cons

Fits only the R640; no other chassis
Supports 2nd Gen Scalable only, not 3rd Gen or later
1GbE LOM is dated next to 10GbE or 25GbE options
No CPUs, memory or heatsinks included
Board swap needs thermal paste, careful cabling and a BIOS/iDRAC check

H28RR System Board Motherboard prices at every store

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$409.87Checked Nov 10
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What reviewers say

Buyers of this board are mostly R640 owners doing repairs or CPU-generation upgrades. They report it arrives as a genuine Dell board and posts once CPUs, memory and cabling are moved over correctly. Complaints center on DOA units and the work involved in a full board swap.

What people mention

FitPraisedOwners say it drops into the R640 chassis and lines up with the standoffs and rear I/O.
ReliabilityMixedMost boards post and run, but some buyers report dead-on-arrival units.
InstallationCriticisedA full swap means moving CPUs, heatsinks, memory and every cable, which buyers call time-consuming.
FirmwareMixedSome report needing a BIOS or iDRAC update before the board boots cleanly.
CompatibilityCriticisedIt only takes 2nd Gen Xeon Scalable CPUs and R640 parts, so spare parts from other models do not fit.

About the H28RR System Board Motherboard

The H28RR is a system board (motherboard) for the Dell R640 server. It has two sockets for 2nd Gen Intel Xeon Scalable processors.

It supports 24 ECC DDR4 RDIMM/LRDIMM memory modules at 2933 MHz. For expansion, it offers three PCIe 3.0 slots plus dedicated PERC and rNDC slots, and it can accommodate up to three single-width GPUs.

Model: H28RR
Brand: Dell
Compatibility: Dell R640
Socket: 2 x 2nd Gen Intel Xeon Scalable
Memory: 24 x ECC DDR4 RDIMM/LRDIMM, 2933 MHz
Expansion: 3 x PCIe 3.0, dedicated PERC slot, dedicated rNDC slot
Networking: 4 x 1GbE LOM
GPU support: Up to 3 single-width

Questions and answers

Which servers does the H28RR fit?: It is the system board for the Dell PowerEdge R640. It does not fit other PowerEdge models.
Which CPUs does it support?: Two 2nd Gen Intel Xeon Scalable processors. First Gen Scalable chips are not the intended pairing, and 3rd Gen or later will not fit.
What memory does it take?: Up to 24 DDR4 DIMMs, RDIMM or LRDIMM, at 2933 MHz. Memory is not included.
Does it come with CPUs, heatsinks or memory?: No. The board is sold on its own; you supply processors, heatsinks, memory and any PERC or rNDC cards.
What expansion does it offer?: Three PCIe 3.0 slots, a dedicated PERC slot, an rNDC slot and four 1GbE LOM ports. It supports up to three single-width GPUs.
Is it worth it over replacing the whole server?: If the rest of your R640 is sound, a board swap keeps your existing CPUs, memory and drives. If the server is old and out of warranty, weigh the swap labor against a newer platform.
Where is the H28RR System Board Motherboard cheapest?: At aloinfousa.com, for $409.87, as of our latest check.