Dell PowerEdge R660 Memory Upgrade — RAM Prices

Dell R660 — OEM population table

Every row below is drawn from the same Dell document — nothing here is inferred from a sibling platform or a community source.

Paraphrased from Dell's official documentation. Modules rated above the documented speed range are safe to install — a documented vendor behavior is that they run at the platform's supported speed for your DPC configuration rather than their own label speed, never at a speed we are claiming for them. See our population-rules and mixing-rules pages for how this platform's rules compare to others we've checked.

Buying memory for the R660, practically

Because Dell validates only fixed DIMM counts here, plan capacity as a ladder of legal rungs: 8× 32GB (256GB), 8× 64GB (512GB), 16× 64GB (1TB) — each a supported per-CPU quantity, each priceable from the live table in one multiplication. The illegal middle grounds (ten DIMMs, fourteen DIMMs) simply do not exist on this platform, which oddly simplifies procurement: there are only a handful of valid configurations to price.

The 1U thermal reality adds one practical note: fully populated R660s run their fans harder, and memory at the thermal margin is where marginal modules show their quality. Stick to the tier-one manufacturers in the table — on this platform they are usually the cheapest anyway — and let the per-module history charts time the buy.

How this page keeps itself honest

Every specification in the rules box above was verified against the Dell document linked beneath it before this page went live — nothing is inferred from forum lore or reseller listings, and any field the document does not state is simply absent here rather than guessed. The compatibility table applies those verified rules mechanically to our tracked module catalog: generation must match, the module type must appear in the platform's allowed list, speed must meet the documented floor, and per-DIMM capacity must respect the stated maximum. What survives that filter is sorted by live $/GB — computed against true 1024-based capacities — and refreshed on the same rolling cycle as every price on this site.

Two honest limits worth stating. First, our catalog tracks the retail module market, not Dell's option-part universe — a module absent from the table is not declared incompatible, merely untracked; the rules box tells you what any candidate must satisfy. Second, a compatibility table is not a QVL: Dell validates specific part numbers against specific configurations, and the disclaimer above the table is not boilerplate but the actual final step. Use this page to find the market's honest price for compliant memory; use the vendor's QVL to bless the exact part before a production order.

Who upgrades the R660

R660s go where rack units are the scarce resource: colo cages billed by the U, edge sites with a single short rack, and dense virtualization rows. Their owners buy memory the way the platform demands — in matched, planned sets — which turns the live table below into a multiplication exercise: find the cheapest compliant part at your target capacity, multiply by a supported DIMM count, and compare against the scenarios we compute automatically.

The 1DPC-vs-2DPC speed trade deserves a moment of thought at this platform's prices: sixteen larger DIMMs at 4800 MT/s versus thirty-two smaller ones at 4400 is both a performance and a price decision, and the $/GB spread between capacity tiers in the live table frequently decides it in a direction the spec sheet cannot predict.

Frequently asked questions