Sun part number 540-7077 identifies the 540-7077 - Sun 4GB Kit (2 X 2GB) DDR-266MHz PC2100 ECC Unbuffered CL2.5 184-Pin DIMM Memory, an enterprise-grade Memory unit appropriate for data-center, server-room, and workstation deployment. The component is intended for use in enterprise rack server and data-center deployments where matched-pair installation, hot-spare provisioning, or matched-lot procurement is required. Technical specifications include capacity of 4 GB, connector of 184-pin, memory class of ECC, Unbuffered. Typical workloads include VMware vSphere VM host memory, Kubernetes worker-node memory pool, in-memory database (Redis, Memcached, SAP HANA), and SAS / Splunk analytic workloads requiring large RAM footprint. Pro Disk Network maintains the 540-7077 in our enterprise inventory and verifies each unit against manufacturer datasheet specifications prior to listing. New stock ships factory-sealed where available; refurbished units are tested under load before dispatch and ship with a 30-day Pro Disk Network functional warranty. Net 30 terms are available for qualified business accounts. Same-day dispatch on in-stock orders placed before 3pm ET; free standard ground shipping on US orders over $150.
The 540-7077 is a Sun memory component with capacity 4 GB, connector 184-pin, memory class ECC, Unbuffered. Pro Disk Network sells the 540-7077 for $792.16 with same-day US shipping and a 30-day free return guarantee.
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Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the 540-7077 verified against the manufacturer datasheet and our internal lab benchmarks.
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2,000+ B2B Customers — MSPs, government, education, enterprise IT
Quick Answer: What servers is the 540-7077 compatible with?
The 540-7077 is a Sun memory module. Confirm DIMM rank, voltage, and speed against the target server's supported memory list before deployment - mixed configurations may downclock to the slowest installed module. For server-specific population diagrams, email sales@prodisknetwork.com with your server serial number.
How fast does the 540-7077 ship?
Pro Disk Network dispatches the 540-7077 same-day on orders confirmed before 2 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
The 540-7077 is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.
Hyper-V Cluster Node — Windows Server 2019/2022 Hyper-V hosts with Storage Spaces Direct. Dynamic memory allocation makes higher-density DIMMs cost-effective.
AI / ML Training — PyTorch and TensorFlow workloads benefit from large host memory pools for dataset preprocessing and CPU-side feature engineering.
Tanzu / Kubernetes Workers — Worker node memory expansion for high-density container deployments. Plan for 8–16 GB per moderate Pod baseline.
New, Bulk, or Refurbished — Choosing Your Tier
Pro Disk Network offers the 540-7077 across three procurement tiers. Each tier is fully functional and warranted; the choice comes down to budget, warranty length, and whether the deployment is production-critical or capacity-expansion.
Tier
Discount vs OEM List
Warranty
Best For
New (Sealed OEM)
25–40%
Sun manufacturer warranty (1–5 yr)
Production-critical first-tier
New (Bulk OEM)
50–65%
3-year Pro Disk Network warranty
New cluster builds, secondary tier
Refurbished
75–85%
12-month advance replacement
Capacity expansion, lab, dev/test, EOL refresh
Bulk & Volume Pricing for 540-7077
Ships from our Orlando, FL warehouse — same-day US dispatch on orders placed before 2pm ET. Net 30 terms available for verified businesses, government and education.
Volume discounts on the 540-7077 are automatic at checkout. Net 30 terms available for verified businesses, government, and education. Email sales@prodisknetwork.com for orders above 100 units.
Quantity
Discount
Unit Price
1
0%
$792.16
5+
4%
$760.47
10+
8%
$728.79
25+
13%
$689.18
50+
18%
$649.57
100+
23%
$609.96
What is the 540-7077?
The 540-7077 is a Sun server memory module with capacity 4 GB and connector 184-pin, manufactured by Sun. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.
Pros & Cons of 540-7077
Pros
Recovery from no-POST errors when refreshing aging servers
Drop-in DDR4/DDR5 RDIMM choices across most enterprise sockets
Heat-spreader and tray packaging suitable for production install
Cons
Memory must match existing DIMM rank/density for channel balance
Higher density modules can drop overall channel speed
BIOS update may be required on older revisions
Frequently Asked Questions about 540-7077
Is the 540-7077 a genuine Sun part?
Yes. Pro Disk Network sources every 540-7077 as factory-original Sun inventory verified against the manufacturer parts registry before listing. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Sun servers, surface-tested, and re-warranted by Pro Disk Network for 12 months.
What servers is the 540-7077 compatible with?
The 540-7077 is a Sun memory module. Confirm DIMM rank, voltage, and speed against the target server's supported memory list before deployment - mixed configurations may downclock to the slowest installed module. For server-specific population diagrams, email sales@prodisknetwork.com with your server serial number.
How fast does the 540-7077 ship?
Pro Disk Network dispatches the 540-7077 same-day on orders confirmed before 2 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
What is the warranty on the 540-7077?
New 540-7077 units carry the full Sun manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (12 months refurbished, 36 months new bulk). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the 540-7077?
Yes. Pro Disk Network offers automatic volume discounts at 10, 25, 50, and 100+ unit tiers. Net 30 terms are available for verified businesses, government, and education buyers. Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the 540 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
540-7040 — 540-7040 - Sun 80GB 7200RPM SATA 3Gb/s 8MB Cache 3.5-inch Hard Drive — $313.01
540-7048 — 540-7048 - Sun CPU/Memory Board 4x USIV+ 1.5GHZ/w 16GB RAM for Netra 1290 — $968.57
540-7054 — 540-7054 - Sun 80GB 7200RPM SATA 3Gb/s 8MB Cache 3.5-inch Hard Drive for Fire Server X2100 — $344.84
540-7054-01 — 540-7054-01 - Sun 80GB 7200RPM SATA 3Gb/s 3.5-inch Hard Drive — $296.80
Pro Disk Network Buyer’s Guide: Memory
Compatibility: Rank, Density, and Channel Population Rules
Memory population order for Xeon Scalable is documented in the motherboard manual; the typical rule is to populate channels symmetrically across both CPU sockets and across all six channels per socket. For two-socket builds with eight DIMMs, populate the white slot first on each channel; for sixteen-DIMM builds, populate both slots on every channel. Asymmetric population leaves performance on the table.
Pricing Strategy: New, Bulk, or Refurbished
The 540-7077 is available across three procurement tiers, and the choice is driven by criticality, warranty coverage, and budget. New (sealed OEM) units carry the full Sun manufacturer warranty and command a 20-30% premium over bulk-OEM tier. New (bulk-OEM) units are factory-fresh modules sold without retail box; Pro Disk Network warranties them for 36 months. Refurbished units come from decommissioned servers, are individually MemTest-validated, and carry a 12-month advance-replacement warranty.