RST- RAM STRESS TEST memory testing diagnostic hardware memory testing

RST RAM testing & validation hardware tool

Ultra-X, Inc., memory diagnostic hardware & RAM testing software developer & technology pioneer, offers customized solutions for pc computer memory module manufacturers, pc system builders, memory oem's, design engineers, & computer service professionals. RST PRO memory testing & validation products ensure reliability, stability, integrity, & compatibility of all memory modules utilizing over 30 proprietary memory test algorithm patterns on all: SIMMS, DIMMs, RIMMs, SO-DIMM, Micro-DIMM SDRAM 66-133, DDR, DDR/2, RDRAM (RAMBus), ECC, FB-DIMM (Fully Buffered DIMM), Registered, & Parity memory modules for all Servers, Desktops, Notebooks & Laptop PC's. Ultra-X offers full customization services to modify any RST PRO product to support specific manufacturing, validation & computer design needs. For additional information contact us at 408-261-7090 or email

RST - RAM Stress Test
RST - RAM Stress Test


R.S.T. Pro2 is the definitive memory diagnostic and validation tool designed for the rigorous testing needs of desktop & server memory manufacturers, system builders, design engineers, and service professionals. Powerful new features and advanced functionality make R.S.T. Pro2 the most comprehensive memory validation tool of its kind. R.S.T. Pro2 is the tool of choice for numerous industry professionals who want to quickly and accurately test and validate memory in all Desktop, Workstation and Server PC’s incorporating an Intel or AMD x86 compatible 32/64-bit single/multi-core processor.

R.S.T. Pro2 performs the most comprehensive tests available for both Base and Extended Memory (up to 64 gigabytes). Utilizing over 100+ different test patterns, both standard and proprietary algorithms, R.S.T. Pro2 provides a graphic display to pinpoint the exact location of memory failures. R.S.T. Pro2 supports the latest SIMMs, DIMMs, RIMMs,(SDRAM 66-133, DDR-266/333/366//400/466/500, DDR2-533/667, RDRAM(RAMBus), SRAM, ECC, FB-DIMM, Parity and Non-Parity) memory technologies.

Ultra-X’s Self-Boot Technology allows R.S.T. Pro2 to boot and test system memory without the interference of any memory drivers, TSRs, Operating System limitations, or Windows protected mode. R.S.T. Pro2 runs complete testing in its own protected mode which can thoroughly test up to 64 gigabyte of memor y. Exclusive protected access also means testing can be run at the maximum possible speed.

RST Pro2 is packed with exclusive functions to assist in memory testing such as real-time temperature and voltage monitoring, remote data logging via an on-board serial port, memory map function, SPD reader, PCI Editor and benchmarking.

R.S.T. Pro2 is one of the fastest, robust, and accurate memory diagnostic and verification tools available on the market today.  Whether you design & manufacture memory modules, build or repair systems, R.S.T. Pro2 tests and validates with the same commitment to quality, compatibility and reliability.

R.S.T. PRO Advantage Memory is one of the most notoriously difficult core system functions to troubleshoot, exercise, and validate. PC’s are not only being equipped with increasingly large amounts of RAM but their often complex system hardware and software configurations can make it even more difficult to determine if a problem is truly a RAM failure. Such problems vary with different combinations of chipsets, processors or motherboards. R.S.T. Pro2 capabilities far exceed those of stand-alone testers in meeting all of these challenges.

Behavioral Testing Many memory manufacturers first test memory chips on a traditional ATE(Automatic Test Equipment) and then assemble them into modules. Although most ATE systems are great at catching Logical and Parametric Failures, they have no reliable way of replicating Behavioral Failures. This means that it is possible for a memory module to pass through the entire test process and still fail in the field. Therefore, ATE testers do not have the best possible fault coverage.

R.S.T. Pro2 identifies memory defects that may have passed every usual manufacturing test, but which can still fail in normal use. A major advantage of R.S.T. Pro2 compared to stand alone testers, is the capability of testing and validating RAM within the system environment, testing for Behavioral failures that are sensitive to system idiosyncrasy. Quickly isolate intermittent failures that do not necessarily prevent a system from booting, but surface during extended testing sessions.

Small but Robust Program Size R.S.T. Pro2’s powerful memory package is small in program size allowing the firmware to load itself into the least amount of memory possible. This allows for true low-level testing of RAM starting at memory address 2k exercising the complete range of a computer’s RAM.

Memory Test Algorithms
There are many good approaches for testing memory. However, many tests simply throw various patterns at memory without much thought or knowledge of memory architecture. As Tier 1 partners with industry leading manufacturers, Ultra-X is able to continuously develop new sophisticated proprietary memory test algorithms to locate the most evasive memory failures. R.S.T. Pro2 has the broadest range of algorithms, for current and future memory chip technologies.

Self-Boot Technology
R.S.T. Pro2 directly executes using Ultra-X’s exclusive Self-Boot Technology™ eliminating interference from memory drivers, TSRs, O/S limitation, and all other software layers. Utilizing direct hardware to hardware access commands, R.S.T. Pro2 is able to perform true precise low-level memory testing and validation.

All of these factors make R.S.T. Pro one of the best, accurate, and fastest ways to validate system RAM and it’s also the reason why R.S.T. Pro successfully resolves RAM problems in many environments where standalone testers fail.

Product Benefits

  • Minimize "No Trouble Found(NTF)" Returns & RMAs
  • Increase Customer Retention
  • Increase Confidence in Shipped PC's
  • Reduce Support & Warranty Costs
  • Quickly Isolate Memory Hardware Issues
  • Ideal Solution for Notebooks, Laptops, & Tablet PC's
  • Component level testing ensures proper & reliable functionality
  • Check Compatibility Issues that arise in Memory Design Process


EXCLUSIVE! Complete Memory Testing
Performs the most comprehensive tests available for Base and Extended Memory (up to 64 gigabytes). Performs over 100+ different industry standards and proprietary memory tests algorithms. Provides graphic display to pinpoint exact location of failure. Newly improved to test the latest SIMMs, DIMMs, RIMMs,(SDRAM 66-133, DDR-266/333/400, DDR2-533/667, RDRAM(RAMBus), SRAM, ECC, FB-DIMM, Parity and Non-Parity)
ENHANCED! Memory Burn-In Solution
Provides an unattended Burn-In mode for lengthy troubleshooting sessions and new RAM installation verification testing.
EXCLUSIVE! Operating System Independent
PCI device with onboard self-loading program eliminates operating system dependencies. Directly runs using proprietary Self -Boot Technology without the need for ANY operating system for superior low level testing
EXCLUSIVE! Onboard Memory
Test system RAM without the interference of any Memory Drivers, TSRs, O/S limitations, or Windows protected mode. R.S.T. Pro2 loads itself into the least amount of RAM possible, occupying far less RAM than any other memory test product boosting similar functionality.
ENHANCED! SPD (Serial Presence Detect) Data of DIMM Modules
Provides SPD information on installed memory modules that include Speed and Configuration values
NEW! Onboard Serial Port for Remote Monitoring
Route test results or monitor Real-Time voltage and temperature values to a remote system
Onboard LEDs for critical functions
Onboard Clock Signal, RESET Signal, +5 & 3.3V AUX Power Supply Voltages assist in monitoring for proper functionality
EXCLUSIVE! Real-Time Benchmarking
R.S.T. PRO2 includes several benchmarking tools to identify system performance & bottleneck areas. Benchmarks can be used to check , optimize, and fine-tune a system's speed under various operating conditions. Comparative data provided by the benchmarks can be invaluable in comparing different technologies and optimizing systems
EXCLUSIVE! Memory Map Scanner
Scans base RAM for all programs loaded into memory including; BIOS, Video BIOS, drivers, and any TSRs.
This utility consists of a scrollable byte-level display that allows you to locate PCI registers and change them to the desired setting. This function can be extremely helpful in changing the system configuration and re-testing the system to catch configuration caused memory failures. This function helps save time by bypassing the BIOS CMOS setup program
ENHANCED! 32/64-Bit Single/Multi-Core Processor Support
R.S.T. Pro2 tests and validates memory modules in deskstops & server systems utilizing 32 or 64 bit single and multicore processors.
ENHANCED! Latest Chipsets w/EFI Support
R.S.T. Pro2 tests and validates memory modules in computer systems utilizing Intel's chipsets
Capable of testing entire CPU memory range
Up to 64 Gigabytes.
Tests Base, Extended, and All memory
In any system using Intel-compatible architecture
PCI card with Onboard Self-Loading program
Eliminates operating system and hard drive dependencies
Full manufacturing-level diagnostics
Using the latest memory testing techniques, yet occupies a minimum amount of RAM
Permits customized testing sessions to be defined
Any test can be included or excluded from testing as desired
For Cache, Memory, and CPU. Find out how your system compnents compare to other typical systems
Protected mode
For exceptional testing speed and exclusive memory access


Buy Now
  • Intel
  • AMD
  • Micron
  • Crucial
  • Kingston
  • Corsair
  • Infineon
  • Panasonic
  • Infineon
  • Advanced Validation Labs
  • ATI
  • Epson
  • Fujitsu
  • Asus
  • Gigabyte
  • Foxconn
  • Chaintech
  • Nvidia
  • CMTL
  • Lockheed Martin
  • Supermicro
  • HP
  • Medion
  • Lenovo
  • Frys Electronics
  • Juniper Networks
  • Blue Coat
  • Boeing
  • & more...
!-- footer -->

| About R.S.T. | Products | Where to Buy? | Support | Contact Us

© Copyright Ultra-X, Inc. 1987-2016.
RAM Stress Test, R.S.T., R.S.T. Pro2, R.S.T. Pro3, R.S.T. Pro4, R.S.T. Pro USB, R.S.T. MiniPCI, R.S.T. ExpressCard, UX logo,
SBT-Self Boot Technology logo and the Technician Certified logo are trademarks of Ultra-X, Inc. All other
product trademarks are recognised as belonging to their respective owners.
Products or information may change without notice.