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HP Intel Xeon Gold (4th Gen) 5420+ Octacosa-core (28 Core) 2 GHz Processor UpgradeHP Intel Xeon Gold (4th Gen) 5420+ Octacosa core (28 Core) 2 GHz Processor Upgrade Elevate your server and workstation performance with the HP Intel Xeon Gold 4th Gen 5420+ processor upgrade. Engineered for demanding, multi threaded workloads, this powerful upgrade packs an impressive 28 cores and 56 threads, delivering exceptional parallel processing and responsive performance under load. Designed for enterprise environments, it combines a large L3
HP Intel Xeon Gold (4th Gen) 5420+ Octacosa-core (28 Core) 2 GHz Processor Upgrade
Elevate your server and workstation performance with the HP Intel Xeon Gold 4th Gen 5420+ processor upgrade. Engineered for demanding, multi-threaded workloads, this powerful upgrade packs an impressive 28 cores and 56 threads, delivering exceptional parallel processing and responsive performance under load. Designed for enterprise environments, it combines a large L3 cache with robust 64-bit processing, enabling faster data access, smoother virtualization, and accelerated analytics. The 5420+ is built for reliability and scalability, making it an ideal upgrade option for HP servers and compatible systems that require high-core-count compute power without sacrificing stability. Whether you’re running virtualization hosts, database engines, scientific simulations, or HPC workloads, this processor is crafted to minimize bottlenecks and maximize throughput across multiple concurrent tasks.
- Unmatched multi-threaded performance: With 28 high-efficiency cores and 56 threads, this Xeon Gold 4th Gen upgrade accelerates parallel workloads, virtualization environments, and large-scale data processing. It enables more virtual machines per host, faster batch processing, and smoother handling of concurrent users and services, all while maintaining predictable latency under heavy load.
- Blazing turbo and burst capability: The processor delivers up to 4.10 GHz burst performance to accelerate demanding tasks and short-lived compute spikes. This turbo frequency enhances responsiveness in workloads such as real-time analytics, in-memory databases, and peak-demand simulation runs, helping timely results appear faster without waiting for longer compute cycles.
- Massive cache for data reuse: A 52.50 MB L3 cache minimizes memory access latency by keeping frequently accessed data close to the cores. This translates to reduced stall times in cache-sensitive workloads, improved throughput for large-scale simulations, and better performance for data-rich enterprise apps that rely on rapid, repeated data access.
- Socket-based upgrade with solder-free installation: The LGA-4677 socket design allows the 5420+ upgrade to be placed on the PCB without soldering, simplifying the upgrade path for HP servers and compatible platforms. This socket compatibility supports straightforward deployment, easier maintenance, and longer system lifecycles by enabling a powerful, modern CPU to slot into existing infrastructure.
- High-throughput, 64-bit enterprise performance: Engineered for 64-bit processing, this Xeon Gold upgrade delivers robust computation, memory addressing, and security features essential for business-critical workloads. Its architecture is tuned for reliable, sustained performance in enterprise environments, including virtualization hosts, database servers, and compute-intensive research tasks.
Technical Details of HP Intel Xeon Gold (4th Gen) 5420+ Octacosa-core (28 Core) 2 GHz Processor Upgrade
- Core count: 28
- Threads: 56
- Base clock speed: 2.0 GHz
- Max turbo / overclocking speed: 4.10 GHz
- L3 cache: 52.50 MB
- Socket type: LGA-4677
- TDP: 205 W
- 64-bit processing: Yes
How to Install HP Intel Xeon Gold (4th Gen) 5420+ Octacosa-core Processor Upgrade
Installing this processor upgrade is a strategic step toward maximizing compute capacity in compatible HP servers or workstations. Prior to installation, ensure you have the correct motherboard support for the LGA-4677 socket and verify BIOS compatibility with the 4th Gen Xeon family. Prepare your workstation with an anti-static wrist strap and a clean, static-free workspace. Review cooling capabilities in your chassis, as the 205 W TDP expects adequate thermal design to sustain peak performance. If you are replacing an existing CPU, power down the system, unplug all cables, and remove components as needed to access the processor socket. Follow these steps for a safe and effective installation:
- Power down and safety check: Shut down the system, unplug power cords, and discharge any residual static by touching a grounded metal surface. Avoid working on the system while it is powered or connected to power sources.
- Access the CPU socket: Remove the server or workstation cover per the manufacturer’s instructions. Locate the LGA-4677 socket and the existing CPU area. Clean the area to ensure no dust or debris can affect seating integrity and cooling.
- Prepare and align the processor: Open the socket lever, align the CPU’s notches with the socket keys, and gently place the 5420+ into the socket. Do not apply force; improper alignment can cause damage. Verify that the processor is fully seated and the lever can be secured.
- Secure and apply thermal interface: Reattach the socket lever to hold the CPU firmly in place. If your cooler requires re-seating, carefully install the heatsink or cooling assembly with fresh, manufacturer-approved thermal paste. Ensure even contact for optimal heat transfer and secure mounting bolts or clamps as directed by your cooling solution.
- Reconnect, boot, and verify: Reconnect all cables, power up the system, and enter the BIOS/UEFI to confirm CPU recognition and correct settings. Run a post-check, then perform a hardware diagnostic to validate proper core counts, frequency behavior, and thermal margins under load. Update firmware or BIOS if recommended by HP or the motherboard vendor.
Note: While this upgrade is designed for high compatibility, always confirm motherboard and firmware support for the LGA-4677 socket and Xeon Gold 4th Gen family. Some servers may require a BIOS update or specific cooling configurations to unlock the full 4.10 GHz turbo performance and maintain stable operation under sustained workloads. If in doubt, consult HP server documentation or your system integrator for guidance on platform-specific requirements and best practices for CPU installation and thermal management.
Frequently asked questions
-
Q: How many cores and threads does the HP Xeon Gold 5420+ have?
A: It features 28 cores and 56 threads, providing extensive multi-threading capabilities for virtualization, databases, and scientific computations. -
Q: What socket does this processor use?
A: The processor uses the LGA-4677 socket, designed for high-density server platforms and compatible HP configurations. -
Q: What is the base and turbo clock speed?
A: The base clock is 2.0 GHz, with a turbo/overclocking speed up to 4.10 GHz for burst performance under heavy workloads. -
Q: What is the heat/power requirement?
A: It has a TDP of 205 W, indicating a high-performance design that benefits from solid cooling and adequate thermal headroom in enterprise chassis. -
Q: Is this upgrade suitable for virtualization and data analytics?
A: Yes. With 28 cores, 56 threads, a large L3 cache, and 64-bit processing, it excels at virtualization, large-scale data processing, and analytics workloads typical in business-critical environments. -
Q: Do I need special tools or soldering to install it?
A: No soldering is required for the LGA-4677 socket; the upgrade is designed for solder-free installation on compatible motherboards and HP systems, though you should follow the manufacturer’s service guidelines for safe installation.
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.5 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Solid 2 Zone Receiver / Amplifier - Excellent video and Audio
Style: 7.2 Receiver
I purchased this Yamaha to replace the 10YO previous version that no longer decoded SiriusXM. This new clean front panel design and much improved remote control are easy to use once installed. I have to say the only complexity I have run into is connecting 3 smart devices together - NVIDIA Shield PRO Streaming Box, RX V6A Receiver and LG OLED TV via HDMI chain from Streaming to Receiver to TV with no audio or video passing through the TV first. The only issues that result is getting all 3 to play nicely when switching on and off via a single (NVIDIA) remote control. It is nothing short of fantastic to be able to have such a simple remote control all three devices for the most common functions. Only specialty settings require a specific remote. However it becomes an issue of chicken or egg - as control messages to go on or off are carried by HDMI and the power sequence becomes complex - with options to turn on or off IF ... THEN... for all 3!
Otherwise the receiver has been a dream to finally restore sound to several rooms in our home from SIriusXM and now several other sources as well, I'm thrilled with the features, new MusiCast control and ease of operation once installed and properly paired for single remote operation. I plan to have this around another 10 years and enjoye the excellent 4K video upscaled by the NVIDIA device and handled beautifully by the receiver to drive the TV in rich color and great 5 Channel Sound.
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Reviewed in the United States on December 25, 2023
★★★★★ 4
A great A/V receiver at a great price. Too bad Amazon Customer support is horrible.
Style: 7.2 Receiver, Style: 7.2 Receiver
Pros,
1. A 7.2 channel A/V receiver that can do 5.1.2 Atmos. It also support DTS-X as well.
2. 200 watts total power. Don't let that fool you. It powers my 5.1.2 speaker setup far better than my previous Onkyo TX-NR5100 that's supposed to 80 watts per channel. Also sounds a lot better and clearer.
3. 7 HMDI inputs and 1 HDMI eARC output that support 8k/60hz and 4k/120hz with Dolby Vision. Additional speaker inputs for extra zones for run into other room.
4. Uses banana plugs for easy installation.
5. Has both WIFI and Bluetooth. Also includes an AM/FM antenna as well as a speaker calibration mic.
6. Has two RCA subwoofer input jacks for dual sub units.
7. Very well built and very sturdy unit. Looks very nice.
8. Includes an extremely nice remove control.
Cons,
1. It's not the easiest to setup nor the most user friendly. Once setup you should be good, but it's a matter of the learning curves.
2. Make sure you get the latest firmware. You may get unlucky, get an older unit, wonder where all the features are at and why they're not available.
3. Lastly Amazon customer support is utterly horrible and useless. I order this produce and later that day they offered a discount. I called up customer support for a price match and THEY REFUSED TO DO IT!!!! I ended up canceling the order and reordering at the better price and Amazon ended up losing money because they were getting ready to ship the first order. LEARN TO PRICE MATCH LIKE YOUR COMPETITION!!!!!!!!
I have this hooked up to my computer for movies and gaming, it works great because of the 120hz pass through. Other than horrible customer support the receiver is great and otherwise I'd have rated it a 5 star. I took one star for the customer support.
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Reviewed in the United States on May 11, 2025
★★★★★ 5
Review
Style: 7.2 Receiver
So far I’ve been very pleased with the unit although I only use it for powering two large front 4 ohm external speakers while listening to music streaming on apps in the TV. Unlike AVs from both Denon (who I believe has the best tech support) and Onkyo that I returned, when I turn on my Sony Bravia TV with settings enabled for eARC, the Yamaha unit does not automatically turn on and subsequently switch sound to the external speakers. Perhaps it’s possible but it’s not something that I wanted. Additionally, I came to learn that both Denon and Onkyo are owned by the same parent company, which may explain their common behavior. However, the Yamaha receiver does automatically switch to the external speakers when I power it on and I am able to control the AVR volume with my TV remote control. Additionally, with the settings I have on the TV and AVR, when I turn off the AVR, the sound automatically switches back to coming from the TV speakers, and the TV does remain on. Again, something I want to happen. In general, I’ve found that these devices are very complicated with their myriad number of settings on both the TV and the AVR, and it can be very challenging to properly set them. I’m retired now but my undergraduate degree is in electrical engineering from an Ivy League school at a time when we used slide rules to do the mathematics. I would say that it’s not easy to learn how to use the devices with eARC. If you only want to improve the TV sound, I'm guessing that's it's a lot simpler to use a sound bar. In my case, I've had large and expensive 4 ohm front speakers that I wanted to continue to use (my old AVR does not have any HDMI connections) so a sound bar was not an option for me.
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Reviewed in the United States on March 14, 2024
★★★★★ 1
Sound is fine thus far, but the rest is an exercise in irritation
Style: 7.2 Receiver
I selected this receiver based on spec sheet comparison to other receivers in its general class and price point, as well as reading through ‘professional’ reviews and assessments of various levels of dubiousness. The general specs as far as features and performance were the biggest factor. But there are things that can’t be discovered in ad copy and that are frequently omitted from even the most genuine and considered review.
tl;dr: This is a device with an incredible range of functionality that is hidden from the end user by poor documentation practices, and irritating design choices that bury critical menus under unstated tech dependencies. You must have an Android/iPhone capable of running their apps, and a display connected via a video out to get good output from anything but the headphone jack.
Thus far the sound output has proven quite satisfactory. It is these other factors that are dragging the rating into the proverbial pit.
The display is a bit cheap, and the backlighting across the panel tends to wash things out about half as much as it illuminates. It’s very old tech—but forgivable if the result is better components elsewhere. Still, the display on my mini battery powered air inflator is a crisp full color OLED, so I have my doubts that that is the case here.
The biggest problem is the lack of a physical manual. There’s something of a quickstart guide, but when you consider that most of the controls are via the remote and hidden in menu systems and that those menus have a certain opacity to them, it’s not enough information by long shot, especially if you’re not an experiential learner who strongly prefers to dive into the action and see what happens. If you prefer a more studious approach where you don’t even touch a button until you have some idea what it might do, this is going to be more challenging.
There are digital manuals. You can get access to the manual via the Yamaha website, or by downloading via an app that exists to serve up Yamaha manuals. This dependence on screens for vital information is grotesque and should be considered unacceptable. There are multiple problems with this approach.
One is the assumption the end user is going to have a suitable phone and be comfortable downloading an app and having a manual on a poor screen for reading technical information and diagrams on. I’m also averse to the idea of my manual requiring adequate battery power, and the only touch navigation I find acceptable in a manual is turning a page; for clarity, I mean physically moving a paper page, not tapping or swiping. Call me old fashioned, call me old, but I’ve had failures in these things before. I’ve never had a book fail to work without it being destroyed.
Another issue is longevity. I’ve had too many devices outlive the availability of their digital documentation to be on board with that being the only way it is available.
An app is also a requirement to get access to bluetooth as an input. Or at least, that is the only way I was able to get it to work, and then only because I decided to see if the “Musiccast” thing was going to get me access to bluetooth. If there is another way, it wasn’t documented, not that the way I found was particularly well documented. There was nothing saying that that was how to get access to bluetooth as an input, only a short sentence saying you had to set the input to bluetooth for it to receive audio over bluetooth—but cycling through inputs via the remote or the dial on the front never reached a bluetooth input until I had set up Musiccast.
Musiccast requires a phone with a working wifi radio to connect to it.
Once again, this dependence on an app on a phone, and presumption the end user will both have one and be willing to link it up this way is an obscenity. But it’s made worse by having basic labeled functionality hidden behind it, and poorly documented at that.
There are at least two separate menu systems, and two means of accessing them. It is possible to access them from the front panel, using a dial, but the interface is incredibly cramped on a tiny display with bad contrast and worse use of space. The other method is using the remote to trigger an overlay on video out, assuming you are using the HDMI out of the receiver to connect to a display. Ultimately, this is required to have full access to to all the settings. The menu on the unit itself is absolutely tiny in what it can do compared to the full functionality of the unit.
For example, it is required you access the on screen menu to select which speakers are in use, what kind they are, and whether or not you are wired for Bi-Amp. If you don't set these settings and your setup doesn't match the default setup, you're going to have issues. The app doesn't cover all of this, and for a device that places such heavy emphasis on it's ability to play music, it is very annoying to have to have a display hooked up to have access to critical setup functions--granted, they really want you to buy into their Musiccast eco-system, so much so that the app is only suitable for setting up Musiccast branded speakers.
I don't object to having to set things up. While it would be nice if the unit could sense whether or not an output was connected, I realize that with some of those outputs, knowing it is connected isn't sufficient as they might be put to several uses--still, that could be handled with a switch or a system menu on the device itself.
There are a few buttons on the front of the receiver, but all but the power button are capacitive buttons, marked in faint white print with poor contrast. I only discovered them when peering at what I had thought was a blank face looking for the “Connect” button called out in the manual to get Musiccast working. These are terrible buttons, and it’s clear the engineers knew it when they made the power button physical.
Internet Radio was apparently also locked behind the Musiccast app connection as it didn’t show up as an input until I connected the Musiccast app—again, not documented beyond saying you had to set the input to Internet Radio to use it.
Another irritating grievance hidden in menus only accessibly by poking around the on-screen menu, only accessible if you have a display hooked up: Eco mode. In its default state, this will partially shut down after 20 minutes of not processing sound. If hooked up to a display, this will then go to a pass-thru mode, and it will not automatically pick back up again once audio signal is again being sent.
For example, you have a console or PC hooked up to HDMI in, and the display hooked up to HDMI out/eArc. If you are using those devices in a video only mode, with no audio signal, whether it's because you paused a game, or simply got lost reading something and the music stopped, after 20 minutes, the audio processing will shut down, there will be a bit of a flicker and a snap as internal routings are switched around, and the unit will no longer output sound. All sound will iinstead be sent to the display as if the receiver didn't exist. This will persist even if you do start sending audio again. It will not turn itself back on even if you swap inputs, though other inputs will work as normal. The only way I've found to get it out of pass-through for that input is power cycling either the receiver or the sending unit.
Fortunately this can be changed, unfortunately, you absolutely have to have a display hooked up to access the menus to do so.
Overall, the user experience has been underwhelming at best with poor documentation where it exists, an absence of physical documentation, and some terrible choices in terms app dependency. I absolutely hate that I have to use my phone to get access to not just full function but a basic function like being able to pair a bluetooth source to the receiver for playback.
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Reviewed in the United States on May 15, 2025
★★★★★ 5
The best amplifier Ive had since my 1985 Yamaha R-7.
Style: 7.2 Receiver
The Yamaha rx-v6a, tsr-700, and yes, the rx-a2a, are all pretty much the same AVR, on the same firmware channel. Same power, same dacs, same dac implementation, same output stages, same construction, they’re the same. The a2a has a 5th foot, and 2 ten thousand micro farad capacitors in the power supply, while the v6a and tsr-700 have 2 eighty-one hundred micro farad capacitors in the power supply, and only 4 feet. These 2 tiny differences make no difference in sound quality or reliability, whatsoever. All three are simply awesome. From the DACS to the amps, and everything in between, these Yamahas sound better and out perform all the others. The HDMI boards have all been updated, and the firmware is mature. To even match these in sound quality and reliability and longevity, you would have to spend many thousands of dollars. Of the rx-v6a, the tsr-700, and the rx-a2a, which ever one is on sale for the least, get that one, because they’re the same device. In this case, that’s a good thing because you’ll love them.
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Reviewed in the United States on January 16, 2025