Yes. The AC timing specifications on a PC133 device are tested to allow a system bus to run at 133 MHz. Majority of PC133 chips should work at PC100 and PC66. In fact, a -75 device is specified for PC100 timings using CAS latency = 2. Please refer manufacturer data sheet for AC timing table in the appropriate data sheet tCK at CL = 2.

A PC100 or PC133 compliant memory includes a label affixed to it which identifies the module as "PC100 compliant" or "PC133 compliant" . An attempt can be made to verify it by looking at the chip marking which should indicate "-8" or "-7.5" after the string of manufacturer part number, though this may not be entirely accurate.

a general rule, SDRAM is backwards compatible, therefore a PC133 Dimm can operate at 133Mhz, 100Mhz and 66Mhz. Certain systems though that require 66Mhz SDRAM modules will not accept PC100 or PC133 modules. In addition to the speed, the chip configuration of the module is also important. Use our memory search facility located on our home page at (http://www.offtek.co.uk) for guaranteed compatibility.

If your PC has a 100MHz FSB, you can use PC100 or PC133 SDRAM. All PC’s that accept PC100 SDRAM will also accept PC133 SDRAM; however, your memory will only run as fast as the slowest link in your system. If you have a 100MHz FSB or any PC100 modules installed, any PC133 modules that you install will only operate at 100MHz. PC133 SDRAM does not offer any immediate benefit over PC100 SDRAM if you have a 100MHz FSB.

If your PC has a 100MHz FSB, you can use PC100 or PC133 SDRAM. All PCs that accept PC100 SDRAM will also accept PC133 SDRAM; however, your memory will only run as fast as the slowest "link" in your system. If you have a 100MHz FSB or any PC100 modules installed, any PC133 modules that you install will only operate at 100MHz. PC133 SDRAM doesn't offer any immediate benefit over PC100 SDRAM if you have a 100MHz FSB.

No - An SDRAM DIMM with -10 (100 MHz) chip will support only 66 MHz Systems. This type of module is not guaranteed to run consistently in a PC100, 100 MHz system. In order for the module to be PC100 compatible the components need to be marked with -8A, -8B, -8C, -8D or -8E (or 125 MHz)and example taken from micron chips.

Yes. Usually it is recommended to use the same ram modules for all ram slots, but it should work without problems if you mix different brands, speed grades, sizes. If you use a FSB of 100Mhz, you can't use PC66 dimms, and if you overclock your FSB to 133Mhz, you need PC133 modules (you can of course try to use modules not rated for that speed, but you shouldn't be surprised if it doesn't work stable).

Usually it is fine to mix PC100 and PC133 memory in the same system. The faster memory will run at the slower memory's speed (in this case PC100). However, there are some rare instances in which this memory configuration will not work. Contact your computer manufacturer or motherboard manual for more information.

Generally all SDRAM is backward compatible and can run at any bus speed slower than it is rated to run. For example, a PC133 SDRAM DIMM is capable of running at 133MHz, 100MHz, and 66MHz. There are a few older motherboards that require 66MHz SDRAM and that will not accept PC100 or PC133 SDRAM, but they are the exceptions to the rule.

In order to qualify as PC100, PC133, etc., a memory module must meet industry standards for use in a particular type of system. In SDRAM modules, the numbers that come after the "PC" refer to the speed of the system's front side bus. In DDR modules, the numbers that come after the "PC" refer to the total bandwidth of the module. Here's a short summary of each type. PC100 memory is SDRAM designed for use in systems with a 100MHz front side bus.

This is the Bus speed between the CPU (Central Processing Unit) and your memory on the FSB (Front Side Bus). PC66 transfers data at 66MHz, PC100 transfers data at 100MHz and PC133 transfers data at 133MHz.

Database technology is changing at a rapid pace. CONNX has a solid core on which the additional features and extensions are built. By ensuring our core architecture would fulfill our current requirement and future needs, we also reduced the time to market with these new features. Our new core architecture allows us to quickly add support for other databases and open access technologies.

Yes. Ultra ATA/66 hard drives are 100 percent backward compatible with both Ultra ATA/33 and DMA and with existing ATA hard drives, CD-ROM drives, and host systems. The Ultra ATA/66 protocol and commands are designed to be compatible with existing ATA devices and systems. Although a new 40-pin, 80-conductor cable is required for Ultra ATA/66, the system board chip set pin connector remains the same at 40.

It is the making of new software that can run on old computers. Instead of writing off old computers, most software companies decided to write software that could be used on older machines. Back to top

LVD is backward compatible through the single-ended interface if it is multimode LVD. It is doubtful that anyone will build LVD devices that are not multimode. Remember that connecting a single-ended device to a LVD/MSE bus will cause the entire bus to switch to the single-ended mode with its data throughput and cable length limitations.

Ultra 160, also called Ultra 3 is backward compatible through the single-ended interface, if it is multimode Ultra 160. It is doubtful that anyone will build Ultra 160 devices that are not multimode. Remember that if a single-ended device is placed directly on a multimode Ultra 160 bus the entire bus will switch to the single-ended mode with its limitations on data throughput and cable length.

There are several different bus settings in your motherboard’s BIOS. Consult your motherboard manual to see if the proper settings are enabled and that the front side bus (FSB) is set correctly. You may also need to check the motherboard manufacturer’s Web site to see if your board has the latest BIOS revision.

Yes, only if you have a 100 MHz system bus. No,if you have a 66 MHz system bus. On certain system, a non-PC100 module may be "pushed" to run in a 100 MHz system, but the results are not guaranteed and may lead to system instability. Majority of Pentium Pro P6 Computers uses 72 Pin SIMMs. Installation requires 2 SIMMs per bank to upgrade memory. (2 sockets per bank)

b. Rebuilding your Text indexes. The API for Text index creation and maintenance is different, and simpler in Oracle8i, so you will need new scripts. interMedia Text ships with utilities to help generate these scripts. c. Migrating your application code. The API for Text queries is different, and MUCH simpler in Oracle8i, so you will need to change the application code that makes these calls.