| Pregunta: | Does AMD have warranty coverage for my CPU?
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| Respuesta: | The warranty provided by AMD covers the person or organization who bought the processor directly from AMD. AMD's standard warranty covers a one-year period. If your vendor purchased through the authorized channels, they are equipped to handle the full AMD warranty. They can service your warranty needs directly. If your system was built by an OEM, please address your issue directly with that OEM for resolution. |
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| Pregunta: | What are the available AMD-K5(TM) Microprocessors?
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| Respuesta: | The AMD-K5(TM)-PR75,PR90,PR100,PR120,PR133 and PR-166 are available.
The Technical Support Hotline will have no clock speed or pricing information available until the products are officially released.
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| Pregunta: | What is the difference between the 5k86 and the K5?
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| Respuesta: | The goal of the AMD5k86 name was to position the processor as a 586 performance device while leveraging the equity built up around AMD's "K" nomenclature. We have since realized the extent of the name recognition built up around the K5 name, so it made sense to follow through with our original trademarked AMD-K5 name. |
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| Pregunta: | Where can I locate information on the AMD-K5 Microprocessor?
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| Respuesta: | There is additional information located in the K5 section of our web site and in the Microprocessor Report,Volume 8, Number 14, October 24, 1994.
The following information is available from the AMD Literature group at 1-800-222-9323 or check our microprocessor technical documentation page . You can call also our Technical Support line @ 408-749-3060.
- PID #19730 - PC Magazine article reprint - Three Pentium Competitors
- PID #18524 - Technical Reference Manual
- PID #18522 - Data Sheet
- PID #20007 - Software Development Guide
- PID #20662 - Processor Product Brief
- PID #20010 - High Level Overview Brochure
- PID #20677 - Question & Answer Guide
- PID #20680 - P-rating Brief
- PID #19703 - K5 Compatible by design brochure
- PID #19739 - K5 Technical Overview Brochure
- PID #20009 - Performance is Everything Brochure
- PID #19764 - K5 Processor Design Kit
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| Pregunta: | I need to purchase a computer now, but would like to be able to upgrade to a AMD-K5 processor in the future. I understand it is pin compatible with the Pentium. Which, if any, currently produced motherboards will be able to run the AMD-K5 ?
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| Respuesta: | The AMD-K5 is designed to be 100% bus compatible with the Intel Pentium CPUs. The AMD-K5 does not include the APIC logic so will only directly support single processor systems. For multiple processor systems the chip set on the motherboard will need to support this mode.
Any motherboard which properly supports the Intel Pentium should support the AMD-K5. However, a BIOS upgrade may be required to properly recognize the AMD-K5.
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| Pregunta: | What are some of the advanced features of the AMD-K5 Microprocessor?
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| Respuesta: |
- 4-issue core with full out-of-order execution and completion
- 16-Kbyte instruction cache and predecode unit
- 8-Kbyte write-back MESI-compatible data cache
- Dynamic, block-oriented branch prediction with speculative execution
- 5-stage RISC-like pipeline
- 6 parallel functional units
- High-performance FPU
- Validated software compatibility
- Static clock control with AMD-patented Digital Phase Lock Loop (DLL) circuitry
- 64-bit Pentium-compatible bus in 296-pin SPGA package
- Pin-selectable clock multiples of 1.5x and 2x
- Compatibility with existing 586-class systems and supporting designs
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| Pregunta: | Are the Pentium and AMD-K5 hardware compatible ?
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| Respuesta: | Yes, AMD independently developed the AMD-K5 which was designed to be fully hardware compatible with the Intel Pentium. With its P54C compliance, manufacturers can take advantage of the existing fifth generation class architecture. |
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| Pregunta: | What is this new P-rating ?
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| Respuesta: | The P-rating is a new performance measurement, it is an apples to apples performance rating for the processor using the industry standard Winstone 96 benchmark. If an AMD-K5 processor has a rating of "PR100" that means that the processor would offer you performance equal to or greater than a Pentium at that P-rating. For Example, if you have a AMD-K5-PR133, it would give you the performance level of a Pentium 133MHz processor. However, the "PR" rating is not an indication of clock frequency. |
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| Pregunta: | Is the AMD-K5 the former NX586 processor from NexGen ?
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| Respuesta: | The AMD-K5 was independently developed and designed by AMD. Although AMD and NexGen have merged, the NX586 was an independent NexGen design effort and was not pin compatible with neither AMD-K5 or the Pentium Processor. |
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| Pregunta: | What are some of the benefits to the AMD-K5 ?
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| Respuesta: | - Minimized redesign costs
- AMD-K5 delivers same or better performance than a Pentium per clock
- Offers a foundation for higher-performance options
- Leverages existing infrastructure
- Enables freedom of choice with a viable alternative
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| Pregunta: | I seem to be having erratic problems with my new CPU, what could it be ?
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| Respuesta: | You may want to check your voltage setting. The AMD-K5 operates at 3.52 volts, (VRE Spec) most older motherboards default to 3.3 volts which would be below specification for the K5 and could cause erratic operation. |
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| Pregunta: | What are the bus speed breakdowns for the K5 processor ?
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| Respuesta: | The bus speed and clock multiplier breakdowns are as follows:
PR-75 50mhz X 1.5 @3.52 volts
PR-90 60Mhz X 1.5 @3.52 volts
PR-100 66Mhz X 1.5 @3.52 volts
PR-120 60Mhz X 1.5 @3.52 volts
PR-133 66Mhz X 1.5 @3.52 volts
PR-166 66Mhz X 1.75 @3.52 volts (Note: 1.75 is achieved by setting motherboard for 2.5) |
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| Pregunta: | Can I use the K5 in a multi-processor motherboard ?
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| Respuesta: | You can use the K5 in a multi-processing environment provided that the motherboard chipset supports the OPIC logic. If the motherboard Chipset does not support OPIC logic, then you would only be able to use one K5 on the motherboard. |
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| Pregunta: | My K5-PR133 upon boot up says it's running at 100Mhz, is this correct ?
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| Respuesta: | Yes, this is correct. The "PR133" (see question #7) indicates that you will get equal to or greater performance that a Pentium-133MHz processor. However, that does not mean that the processor runs internally at that speed. Due to architecture enhancements over the Pentium we do not need to run the same clock frequency to achieve that same performance. The same is true for the K5-PR120 at 90mhz and K5PR-166 at 117mhz. |
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