ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» º º º Intel OverDrive Processors: Top Questions and Answers º º º ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ OverDrive Processor TOP QUESTIONS & ANSWERS Q1: What is the difference between the Intel OverDrive Processor and the Intel486 DX2-66 ? A1: OverDrive Processors are END-USER INSTALLABLE system upgrades. OverDrive means: performance upgrade over that provided by your primary microprocessor. Intel486 DX2s are CPUs which are sold only to OEMs who install them into their systems as the primary microprocessor. (Just like they install Intel486 DX-33 CPUs as the primary microprocessor) A2: OverDrive Processors are available through all of the same outlets as math coprocessors, and likewise, carry a limited lifetime warranty from Intel. The warranty on the Intel486 DX2 will come from whomever you purchased either your system, or the Intel486 DX2 CPU; not from Intel. A3: With your OverDrive Processor, you will receive a User's Guide, a Utilities Diskette, an extractor tool and a grounding strap. In addition, you can count on Intel's superior technical support services. The warranty and support that you recieve on your Intel486 DX2 CPU will come from whomever you purchase either your system or the Intel486 DX2 CPU. Q2: What is the difference in performance and structure of the Intel486 DX2 and the Intel486 DX-50 ? A: Both Intel486 DX2 and Intel486 DX-50 microprocessors contain all of the same features, but the Intel486 DX2 cpu utilizes speed doubling technology. In a Intel486 DX-50 system, the system board operates at 50 MHz. In a Intel486 DX2-50 based system, the Intel486 DX2 CPU operates internally at 50 MHz, but the system board operates at 25 MHz. What this means is that when the microprocessor has to go to system memory for data or instructions, it has to do so at the system operating frequency, ie., 25 MHz. Because the 8 Kbyte internal cache of the Intel486 DX2 has a hit rate of 85 to 95 %, the CPU only has to access system memory 5-15 % of the time. While the performance of the Intel486 DX-50 based system will be better than the Intel486 DX2 based system, the Intel486 DX-50 system is inherently more difficult to design and will probably be more expensive to design and produce. The Intel486 DX-50 system is well suited to a file server situation, where memory access time is very important. Q3: Will there be an OverDrive Processor for the Intel486 DX-50 ? A: OverDrive Processors for Intel486 SX and Intel486 DX based systems utilize speed doubling technology, where the Overdrive Processor internally operates at twice the system board frequency. Producing an OverDrive Processor for Intel486 DX-50 based systems based upon speed doubling technology would mean that that OverDrive Processor would have to internally function at 100 MHz. Intel has not been able to profitably produce 100 MHz parts as yet. Q4: My computer does not have an extra socket. Where do I install the OverDrive Processor? A: Intel486 SX based systems: If your system does not have a second socket, but is compatible with the Intel487 SX Math Coprocessor, it will almost invariably be compatible with OverDrive Processor. Simply install the OverDrive Processor in the same socket that your system manufacturer recommends installing the Intel487 SX and configure the system the same too. For specific information contact your OEM. A: Intel486 DX based systems: Intel has introduced two versions of OverDrive Processors for Intel486 DX based systems. One version is for those systems with a dedicated OverDrive Processor socket (NOT a Weitek socket). The second version is for those systems without a dedicated OverDrive socket. For the older systems, upgrading may be as simple as removing the Intel486 DX CPU and installing the OverDrive Processor in it's place. Those systems may require a BIOS upgrade and/or additional cooling to vent the additional heat generated by the OverDrive Processor. Intel is currently contacting OEMs to determine whether their systems are immediately upgradable, or can be upgraded. This data is being compiled into a system compatibility list which we will use to tell end-users about the upgradeability of their systems. Q5: When will the OverDrive for DX computers be available ? A: Two versions of OverDrive Processors for Intel486 DX based systems have been introduced already. Being a retail product, they are available through the same retail stores that currently sell math coprocessors and computer supplies. Q6: What is the price for the OverDrive Processor for Intel486 DX and i486 SX systems ? A: The following are suggested U.S. End User List Prices. Because of tariff and shipping issues, international prices may vary considerably. OverDrive Processors for Intel486 SX Systems VERSION PACKAGE Price Pin Config. BOXODP486SX-20 169 pin PGA $449.00 i487SX BOXODP486SX-25 169 pin PGA $599.00 i487SX BOXODP486SX-33 169 pin PGA $799.00 i487SX OverDrive Processors for Intel486 DX Systems VERSION PACKAGE Price Pin Config. BOXODP486DX-33 169 pin PGA $799.00 i487SX BOXODPR486DX-25 168 pin PGA $599.00 i486DX BOXODPR486DX-33 168 pin PGA $799.00 i486DX Q: What is the performance difference of the OverDrive Processor, Intel486 DX2, Intel486 DX-50, Intel386 DX / Intel387 DX and the future Pentium Processor ? A: Specific performance data is available in FaxBACK documents #3040, 3041, and 3042. The data in these documents is extracted from Intel Performance Briefs which are available through Intel's Literature Service by dialing 800-548-4725. Q: What is the 238 pin socket in these new systems all about ? A: OverDrive Processors are END-USER INSTALLABLE system upgrades. OverDrive means: performance upgrade over that provided by your primary microprocessor. The primary microprocessor in a Intel486 DX2 based system is the Intel486 DX2 CPU. Just like there are OverDrive Processors available for standard Intel486 SX and Intel486 DX based systems, early in '94, there will be an OverDrive Processor available for Intel486 DX2 based systems. Even though this OverDrive Processor has not been introduced yet, Intel has laid out the socket specifications for this 238 pin OverDrive Processor socket, so that OEMs can design their systems to be ready for this product when it is introduced. This means that if your system has a 238 pin socket which is designed for this upcoming OverDrive Processor, you will be able to upgrade your system to even higher performance. Q: What are the differences between all of Intel's CPUs ? A: Two documents will be of help you. Both are available through Intel's FaxBACK service. The first is called 32 Bit Architecture Overview, Document # 9013. The second is called CPUs At A Glance, document # 3017. Q: What is the warranty of the Intel CPU ? A: CPUs are classed as OEM products. Intel warrents OEM products to OEMs and to authorized Intel distributors for a period of one year from the ship date. Once that OEM or distributor sells the system or the CPU, he/she extends the warranty to the purchaser. The warranty on your CPU is from whomever you purchased your system or the CPU from. We always coach our customers that a warranty is only as good as the business which extends it. Q: I have a bad Intel486 DX-33 and I need a replacement. I saw the Intel Inside and bought the computer because of this. Will you help me out? A: The warranty on your CPU is from whomever you purchased your system or the CPU from. Intel warrents OEM products to OEMs and to authorized Intel distributors for a period of one year from the ship date. Once that OEM or distributor sells the system or the CPU, he/she extends the warranty to the purchaser. We always coach our customers that a warranty is only as good as the business which extends it. So, your recourse is from whomever you purchased your system, or the CPU from. ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ End of file Intel FaxBack # 3101 March 19,1993