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Intel Xeon Gold 6138 20C 40T 2.0GHz CPU
Price includes warranty
INTEL
Product Specification
| Launch Generation | 1st Gen Intel Xeon Scalable (Skylake-SP) |
| Socket | LGA3647 (Socket P) |
| Cores | 20 |
| Threads | 40 |
| Base Clock | 2.00GHz |
| Turbo Clock | 3.70GHz (max single-core) |
Refurbished · Tested
Intel Xeon Gold 6138 refurbished server processor, 20 cores and 40 threads at 2.0 GHz, for LGA3647 Xeon Scalable servers.
The Xeon Gold 6138 is a first-generation Intel Xeon Scalable processor, codenamed Skylake-SP. Intel launched it in 2017 on a 14nm process for the LGA3647 socket, also called Socket P. It has 20 cores and 40 threads, a 2.0 GHz base clock rising to 3.7 GHz on single-core turbo, 27.5 MB of shared L3 cache and a 125 W TDP. This refurbished unit is stocked under SKU CPU-INTEL-XEON-6138. It belongs in dual-socket servers from the Dell PowerEdge 14th generation, HPE ProLiant Gen10 and Lenovo ThinkSystem lines. IT teams and resellers in Doha and across Qatar buy it to fill an empty second socket, replace a failed processor or standardise a fleet on matched pairs. Two of them give 40 cores and 80 threads for virtualisation hosts, databases, container platforms and build nodes, within a power envelope that standard 1U and 2U chassis are designed for.
CPU-INTEL-XEON-6138Specification
The 6138 sits in the Gold 6100 tier of the first Xeon Scalable generation, which supports up to four sockets through three UPI links per processor. The 2.0 GHz base clock is the guaranteed frequency at the rated TDP; 3.7 GHz is the maximum turbo with a single core loaded.
Each socket drives six DDR4-2666 channels, normally with registered (RDIMM) or load-reduced (LRDIMM) ECC modules; populating all six channels per socket gives full memory bandwidth. The 48 PCIe 3.0 lanes per processor serve NVMe drives, network adapters, RAID controllers and accelerators. The chip has no integrated graphics, so video comes from the server's management controller. It fits LGA3647 boards only, not LGA2011-3 boards built for Xeon E5 v3 and v4.
Installation
The processor is not hot-plug: shut the server down, remove the power cords and wear an ESD strap before opening the chassis. LGA3647 processors mount on a carrier clip attached to the heatsink, and the assembly is then tightened onto the socket in the order marked on the heatsink, so handle the CPU by its edges and keep the socket cover until the last moment. Use the heatsink the server vendor specifies for that chassis and a 125 W processor; adding a second CPU often also needs extra fans or a memory and fan kit. In a multi-socket server every processor must be the same model, so a second 6138 pairs only with an existing 6138, and first and second generation Xeon Scalable chips must not be mixed in one system.
Part numbers and identification
Condition & testing
- Tested in a compatible system
- Verified against the listed part number and specification
- Fully working; minor cosmetic marks are possible on refurbished units.
- 6-month warranty on every unit we sell, with installation and support across Qatar.
What ships with this part
Images are for illustration. The unit supplied is the one described in the specification and may differ cosmetically.
Our team in Doha answers specification and compatibility questions during working hours.
Ask on WhatsApp sales@serverdove.comWhat socket does the Intel Xeon Gold 6138 use?
The Xeon Gold 6138 uses the LGA3647 socket, also called Socket P, on the Intel C620-series chipset platform. This is the socket used by first- and second-generation Xeon Scalable servers, including Dell PowerEdge 14G, HPE ProLiant Gen10 and Lenovo ThinkSystem SR-series machines. It will not fit LGA2011-3 boards built for the earlier Xeon E5 v3 and v4 processors, or the later LGA4189 platforms.
How many cores and threads does the Xeon Gold 6138 have?
The Gold 6138 has 20 physical cores and runs 40 threads with Hyper-Threading enabled. In a dual-socket server, that gives 40 cores and 80 threads in total. This makes it well suited to virtualisation hosts, container platforms and other parallel workloads where many tasks run at the same time.
What memory does the Gold 6138 support?
The processor supports DDR4 memory at up to 2666 MT/s across six channels per socket, with a maximum of 768GB per processor. Xeon Scalable servers normally use registered (RDIMM) or load-reduced (LRDIMM) ECC modules. Populating all six channels per socket gives the best memory bandwidth.
What is the difference between the Xeon Gold 6138 and the Gold 6148?
Both are first-generation Xeon Scalable processors with 20 cores and 27.5MB of L3 cache on the LGA3647 socket. The Gold 6148 runs at a higher 2.4GHz base clock with a 150W TDP. The Gold 6138 runs at 2.0GHz with a lower 125W TDP. The 6138 is often chosen where cooling or power budgets are tighter, while still delivering the same core count.
Can I use the Gold 6138 in a second-generation Xeon Scalable server?
Platforms designed for second-generation Xeon Scalable (Cascade Lake) processors use the same LGA3647 socket and C620-series chipsets. They generally also support first-generation Skylake-SP chips such as the Gold 6138. Check that the server's BIOS version supports the processor before installing it. Do not mix first- and second-generation CPUs in the same multi-socket system.
Does the Xeon Gold 6138 support dual and quad socket configurations?
Yes. Gold 6100-series processors support up to four sockets and have three UPI links running at 10.4 GT/s for communication between processors. In a multi-socket server, every installed CPU should be the identical model, so buyers adding a second processor should match it to the existing Gold 6138.
Does the Gold 6138 need a specific heatsink?
Yes. LGA3647 processors mount on a carrier clip attached to the heatsink, and each server vendor specifies heatsinks matched to its chassis airflow and the processor's 125W TDP. When adding a second CPU to a server, you will usually need the correct OEM heatsink for that socket. Some systems also require additional fans or a memory and fan kit for the second processor.
Does the Xeon Gold 6138 have integrated graphics?
No. Like other Xeon Scalable processors, the Gold 6138 has no integrated graphics. Servers provide basic video output through the onboard management controller, such as iDRAC, iLO or XClarity, or through a dedicated graphics adapter. Workloads that need GPU acceleration can use the processor's 48 PCIe 3.0 lanes for add-in cards.
What does refurbished mean at ServerDove?
Off-lease or decommissioned enterprise hardware that we clean, test and reset in Doha. Every unit goes through POST, burn-in, memory and drive checks and a power-supply check, with firmware and BIOS returned to defaults and drives securely erased.
Can I ask about the exact unit before I buy?
Yes. Message us the SKU on WhatsApp and we will confirm the condition and configuration of the unit in stock, with photos if you want them.
How fast is delivery in Qatar?
Orders ship from Doha and arrive within one working day anywhere in Qatar. Delivery is free on orders over QAR 300.
Can I collect in person?
Yes, from Nuaija Office 7, Doha, usually within 24 hours of ordering. Choose pick-up at checkout and we will message you when it is ready.
What warranty is included?
A 6-month hardware warranty from the delivery date, covering the unit as supplied. If a part fails we repair or replace it. Full terms are on the warranty page.
What is your return policy?
If the unit arrives faulty or not as described, tell us and we will collect it and replace or refund it. Full terms are on the Refund Policy page.
Which payment methods do you accept?
Visa, Mastercard and American Express online. Bank transfer is available for company orders; contact us for details.
Is the price shown the final price?
Yes. The price shown is what you pay; nothing is added at checkout, and every order ships with an invoice in your name or your company's name.
Why buy refurbished
Enterprise hardware, tested in Doha, at a fraction of the price of new
Every unit we sell has already proven itself in a data centre. We test it again, grade it, and back it with a warranty before it leaves our stock.
Tested before it ships
POST, burn-in, memory and power-supply checks on every unit. Anything that fails is repaired or pulled from stock, not sold.
Same performance, lower cost
A Xeon runs the same workloads whether it is new or two years old. Spend the difference on more CPUs, memory or storage.
In stock, not on order
New enterprise hardware can take weeks or months to arrive. Ours is on the shelf in Doha and delivered across Qatar within a day.
Warranty and local support
Every unit is covered. Installation, configuration and hardware support are handled by our own team in Qatar, not a call centre abroad.