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

**Note: This card has been replaced by newer hardware.

The Worlds First and Only Self-Boot, O/S Free, PCI-Express memory diagnostic and validation tool has been succeeded by the RST Pro4 PCI-Express Card


Introducing the world’s first and only PCI Express RAM memory diagnostic and validation tool, R.S.T. PRO PCI Express(R.S.T. Pro PCIe). R.S.T. Pro PCI Express 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. Pro PCI Express the most comprehensive memory validation tool of its kind. R.S.T. Pro PCI Express 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 and a x1,x8 or x16 PCIe bus.

Whether you design & manufacture memory modules or build & repair pc systems, R.S.T. Pro PCI Express tests and validates with the same commitment to quality, compatibility and reliability. R.S.T. Pro PCI Express 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. Pro PCI Express provides a graphic display to pinpoint the exact location of memory failures. R.S.T. Pro PCI Express supports the latest FB-DIMMs, SIMMs, DIMMs, RIMMs, (SDRAM 66-133, DDR-266/333/366//400/466/500, DDR2-533/667/800, RDRAM(RAMBus), SRAM, ECC, Parity and Non-Parity) memory technologies.

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

RST Pro PCI Express is packed with exclusive functions to assist in memory testing such as real-time voltage monitoring, memory map function, SPD reader, PCI Editor and benchmarking.

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. Pro PCI Express 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. Pro PCI Express 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. Pro PCI Express 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.

Self-Boot Technology
R.S.T. Pro PCI Express 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. Pro PCI Express is able to perform true precise low-level memory testing and validation.

Small but Robust Program Size
R.S.T. Pro PCI Express’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. Pro PCI Express has the broadest range of algorithms, for current and future memory chip technologies.

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