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4GB RAM Replacement for HP 641369-001, B4U39AA, B4U39AT | DDR3 1600MHz PC3-12800 SODIMM 1Rx8 Laptop Memory
- 4GB ( 1x 4GB Module ) | DDR3 1600 MHz ( PC3-12800 ) | DDR3 SODIMM ( 204-Pin ) | Non-ECC SODIMM ( Unbuffered SO-DIMM ) | 1.5V - DDR3 Standard Voltage
- Compatible Equivalent for HP B4U39AA, B4U39AT, 641369-001
- High performance Memory RAM upgrade designed for Laptop/Notebook/All-in-One Computer Systems
- All modules undergo quality assurance testing to ensure dependable and reliable performance | Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility
- A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
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Overview
Specs
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An A-Tech Memory (RAM) upgrade is an easy, quick way to boost your system's performance by speeding up loading times, improving system responsiveness, and increasing your system's ability to handle higher workloads. Take on more and multitask with ease with a simple and affordable A-Tech Memory upgrade!
Compatible Memory Module Replacement for HP:
B4U39AA
B4U39AT
641369-001
Memory Specs
Memory Size: 4 GB ( 1 x 4 GB Module )
Memory Type: DDR3
Form Factor: SO-DIMM ( 204 Pin )
Speed: DDR3 1600 MHz ( PC3-12800 )
ECC Type: Non-ECC SO-DIMM ( Unbuffered SO-DIMM )
Voltage: 1.5V
Ensured Reliability
All A-Tech Memory products are rigorously tested to ensure that your memory meets our stringent quality and performance standards.
Lifetime Warranty
Purchase with confidence knowing that all A-Tech orders are backed with our Lifetime Warranty.
US Based Technical Support
Need help? Have questions? Our 5 star United States based support team is here to help before, during, and after your purchase to make sure you are completely satisfied with your A-Tech Memory!
Compatible Memory Module Replacement for HP:
B4U39AA
B4U39AT
641369-001
Memory Specs
Memory Size: 4 GB ( 1 x 4 GB Module )
Memory Type: DDR3
Form Factor: SO-DIMM ( 204 Pin )
Speed: DDR3 1600 MHz ( PC3-12800 )
ECC Type: Non-ECC SO-DIMM ( Unbuffered SO-DIMM )
Voltage: 1.5V
Ensured Reliability
All A-Tech Memory products are rigorously tested to ensure that your memory meets our stringent quality and performance standards.
Lifetime Warranty
Purchase with confidence knowing that all A-Tech orders are backed with our Lifetime Warranty.
US Based Technical Support
Need help? Have questions? Our 5 star United States based support team is here to help before, during, and after your purchase to make sure you are completely satisfied with your A-Tech Memory!
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by A-Tech Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
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The A-Tech 4GB DDR3-1600 (PC3-12800) SO-DIMM is a single laptop-memory module for compatible systems that support 204-pin, 1.5V, non-ECC, unbuffered DDR3 RAM. It is listed as a replacement equivalent for HP part numbers 641369-001, B4U39AA, and B4U39AT.
Recommended For
- Owners of an HP laptop whose service manual lists part 641369-001, replacing a missing or failed 4GB memory module with the listed DDR3-1600 SO-DIMM type.
- Repair shops and refurbishers maintaining older, compatible HP notebooks that need a single 4GB DDR3-1600 module to restore or match a documented configuration.
- Owners of a compatible DDR3 laptop with an available memory slot who want to add 4GB for light, mostly single-task use, after checking the laptop’s supported capacity and memory specifications.
Real-World Use Scenarios
- When a compatible laptop is short on memory, adding this module can give a browser, email, and a document app more room to stay open together, reducing slowdowns caused by relying on virtual memory. The benefit depends on the laptop having an available slot and the upgrade increasing its total RAM.
- For a compatible HP laptop that shipped with less memory, using this 4GB module as an upgrade can provide more headroom for everyday browsing and office tasks. Check the model’s supported memory and existing configuration first; a 4GB replacement does not necessarily increase total RAM.
- If an older compatible HP laptop has a failed memory module, replacing it with a supported equivalent can restore the system’s working memory capacity. Confirm the laptop model and memory configuration before ordering.
- For light photo work on a laptop that remains at 4GB total RAM, a quick crop or similar simple edit may be manageable, but opening multiple large images or doing routine photo editing can strain memory.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Memory upgrades for AMD- or Intel-compatible systems that use DDR3 SO-DIMM memory |
| Memory Capacity | 4GB |
| Memory Type And Speed | 204-pin DDR3 SO-DIMM, rated at 1600MHz (PC3-12800) |
| Timing And Voltage | CL11 CAS latency at 1.50V |
| Error Correction And Buffering | Non-ECC and unbuffered |
| Memory Components | Major-brand chips |