Lenovo ThinkSystem SR665 Rack Server

General

Platform

Storage and Expansion

Networking, Power and Cooling

Warranty and Support

Model numbers are reused across generations — check which one you are buying

Lenovo reuses ThinkSystem model numbers across generations that sit on completely different processor platforms. There have been several distinct machines called SR630 and several called SR650, on different sockets, different memory generations and different PCIe generations. A quotation that says only "SR650" is genuinely ambiguous, and the machines it could mean are years apart.

This page describes Lenovo ThinkSystem SR665 Server, which is the machine Lenovo documents in LP1269. When you compare quotes, compare the full name including any V-number, and ask for the machine type. We will always put both on ours.

How these are actually bought, and what the price on this page means

A ThinkSystem server is not a product you take off a shelf. It is configure-to-order: the chassis is one line item, and the processors, memory, drives, RAID controllers, network adapters, accelerators, power supplies and the warranty term are all selected separately, through Lenovo's Data Center Solution Configurator. Two machines with the same model name can differ by an order of magnitude in price.

Lenovo publishes no list price for any ThinkSystem server — not in Lenovo Press, not in PSREF, nowhere public. The figure on this listing is our indicative starting price for a base chassis, so that the product has a number against it and can be found and compared. It is not a quotation, and it does not describe a fully populated machine. Tell us the workload and we will configure and quote it properly. That conversation is genuinely worth having: on a server, the difference between a good configuration and a merely adequate one usually costs less than the mistake does.

The warranty is a choice you make at order time, not a fixed number

This is worth reading, because server warranties do not work like laptop warranties and the difference matters when something fails at two in the morning.

Lenovo's published base warranty on this server is three years or one year, model dependent, customer-replaceable unit and onsite limited warranty with 9x5 next business day. The term is fixed by the machine type you order — on several ThinkSystem servers Lenovo assigns one machine type to the one-year build and a different machine type to the three-year build, so the term is a configuration decision made at the point of order rather than something that can be added afterwards.

Read the service level as carefully as the term: it is 9x5 next business day, customer-replaceable unit and onsite. Business hours, next business day — not 24x7, and not four-hour response. For a machine running production workloads that is often not enough, and Lenovo sells the upgrades: 4-hour and 2-hour response, 6-hour committed fix, and term extensions. They are chargeable options and they are considerably cheaper bought with the server than bolted on later. Ask us to price the service level alongside the hardware — it is the part of a server quotation people most often regret leaving out.

Every unit SourceIT sells also carries local Singapore warranty support and a GST invoice.

In the box, per Lenovo PSREF:

• The ThinkSystem SR665 chassis, built to the configuration on your order
• Processors, memory, drives, controllers and network adapters as configured
• Power supplies as configured
• Rail kit and cable management arm, where selected
• Documentation and warranty information

A configure-to-order server has no fixed carton contents — what arrives is what was configured on the order, built and tested at the factory. That is why this page describes what the chassis will take rather than what is in the box. Your quotation is the bill of materials, and we will walk you through it line by line before you sign it. Rack rails, cable management and the rack itself are separate line items and are easy to forget — we will not let you.

Lenovo ThinkSystem Server Ordering Information

• Lenovo Press LP1269 — ThinkSystem SR665 product guide
• Lenovo Press LP1608 — ThinkSystem SR665 V3 product guide

Lenovo Press is Lenovo's own technical documentation library and is the authoritative source for ThinkSystem servers — richer than PSREF for this range, and the only place Lenovo publishes withdrawal status. The product guide linked above is the document every figure on this page is taken from. If you need a specification we have marked as not published, ask us and we will raise it with Lenovo rather than guess at it.

Is this server still current?

No. Lenovo Press records it as withdrawn from marketing — 21 April 2026. Withdrawn means no new production; it does not mean unsupported, and Lenovo continues to honour warranties and publish firmware. The current equivalent is the ThinkSystem SR665 V3. Ask us and we will tell you honestly whether the channel can still supply this platform, and what we would recommend instead.

Why is there a price on the page if it is configure-to-order?

Because a product with no price cannot be found, compared or shortlisted. The figure is our indicative starting price for a base chassis, and Lenovo publishes no list price for any ThinkSystem server. The real number depends on the processors, memory, drives, controllers, network adapters, rails and warranty term. It is not a quotation and it does not describe a fully populated machine. Send us the requirement and we will quote it properly.

What warranty does it come with?

Lenovo publishes three years or one year, model dependent, customer-replaceable unit and onsite limited warranty with 9x5 next business day The service level is 9x5 next business day, customer-replaceable unit and onsite — business hours, not 24x7. On several ThinkSystem servers the term is fixed by the machine type ordered, so it is a decision made at the point of order rather than something added afterwards. Lenovo sells 4-hour and 2-hour response and committed-fix upgrades, and they cost considerably less bought with the server. Ask us to price the service level alongside the hardware. Every unit SourceIT sells also carries local Singapore warranty support and a GST invoice.

How do I know which generation I am being quoted?

Ask for the machine type and the full model name including any V-number. Lenovo reuses model numbers across generations built on completely different processor platforms — there have been several distinct machines called SR630 and several called SR650. A quote that says only "SR650" could mean hardware years apart in capability. This page describes Lenovo ThinkSystem SR665 Server. Ours will always name both.

Can you help size it?

Yes, and it is the part of this we are actually useful for. Tell us the workload — how many virtual machines or users, how much data and how fast it grows, what has to keep running when a component fails, and whether it is going in a data centre or a comms room. We will come back with a configuration, a bill of materials that includes the rails and the service level, and an honest note on anything we think is over- or under-specified.