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Green circuit board DIMM with black memory chips and gold edge contacts

A-Tech

A-Tech 4GB DDR4 2400MHz DIMM 1Rx8 HP 860398-800 934799-001

SKU CH-S46T-YV7KP

4GB DDR4 2400MHz desktop DIMM with CL17 latency and 1.2V operation, compatible with HP 860398-800 and 934799-001

  • Total capacity4 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Tested speed2400
  • Rated voltage1.2 V
  • 4GB capacity expands multitasking headroom for everyday workloads
  • DDR4 2400MHz speed accelerates application loading and data throughput
  • CL17 latency and 1.20V operation balance responsiveness with efficiency
  • 288-pin DIMM form factor fits standard desktop memory slots
  • Tested compatible replacement for HP part numbers 860398-800 and 934799-001

What this module is and who it fits

A-Tech 4GB DDR4 2400MHz DIMM replaces HP part numbers 860398-800 and 934799-001. It is a non-ECC unbuffered desktop module rated at PC4-19200 with CL17 latency and 1.20V operation.

Installation notes and common pitfalls

The module uses a standard 288-pin DDR4 DIMM form factor. Align the notch with the slot key, press firmly until the retention clips click, and verify the system reports 2400MHz in BIOS. Mismatched speeds or mixing ECC and non-ECC modules are the usual causes of boot failure.

Behaviour under sustained load

Rated voltage of 1.20V and CL17 timing deliver stable throughput during extended multitasking sessions. The major-brand chipset and quality-assurance testing help maintain consistent bandwidth without throttling when workloads remain high for long periods.

How it compares

Measured against everything we stock in Desktop RAM, at today’s prices. Recalculated every night.

Price $25.99
Cheaper than about 82% of the 3,647 comparable items (median $90.99).
Total capacity 4 GB
Lower than about 80% of the 3,251 comparable items (median 16 GB).
Price per GB $6.50 per GB
Typical for this category: the median of 3,251 items is $6.75 per GB.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Product lineCompatible Replacement for HP
Model name860398-800, 934799-001
Total capacity4 GB
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Tested speed2400
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Recommended forCompatible Replacement for HP 860398-800, 934799-001

Questions about this item

Will this 4GB DDR4 2400MHz DIMM fit my HP desktop that uses part numbers 860398-800 or 934799-001?

Yes, this module is a compatible replacement for HP part numbers 860398-800 and 934799-001. It matches the DDR4 2400MHz PC4-19200 specification, 288-pin DIMM form factor, 1.20V voltage, CL17 latency, and unbuffered non-ECC design required by those systems.

My motherboard has 288-pin DDR4 slots; will this 1Rx8 single-rank module work alongside existing memory?

This is a standard 288-pin DDR4 2400MHz UDIMM with 1Rx8 organization. It will install in any desktop DDR4 slot supporting 2400MHz operation. For best stability, match speed, voltage (1.20V), and CAS latency (CL17) with your current modules, or populate all slots with identical sticks.

Does this RAM require a heat spreader or active cooling for normal desktop use?

No, this module operates at the standard DDR4 voltage of 1.20V without a heat spreader. At 2400MHz with CL17 timings in typical desktop workloads, passive airflow inside the case is sufficient. Ensure your chassis has basic front-to-rear ventilation for optimal thermal performance.

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