Yes. You can still find them on eBay, and in limited quantities from some online retailers.
Depending on its age, either SDR SDRAM, DDR, or DDR2 RAM.
DDR2 SDRAM modules are available single sided and double sided.
The Intel D845GLLY motherboard supports a maximum of 2GB of PC133 SDRAM, using two 1 GB modules.
No.
No.
No. SDR SDRAM and DDR SDRAM modules are not interchangeable.
No.
Motherboards of that era would have had a either a combination of the older SDR SDRAM (PC100 or PC133 RAM) and DDR SDRAM, or just DDR SDRAM.For best performance, you would want to use the DDR slots.
Yes it seems that the older p4 mother boards came with the SDRAM slot. But the newer ones don't seem to come with the SDRAM slot, they have ddr slots now.
ProcessorThe Dell OptiPlex GX1p supports Intel Pentium II and Intel Pentium III processors with a 100 MHz FSB, in a Slot 1 cartridge. Up to a 1.1 GHz Pentium III, or a 1.4 GHz Celeron is possible by using a "slotket" to adapt Socket 370 processors to Slot 1.MemoryThe Dell OptiPlex GX1p supports a maximum of 768 MB of 768 MB of RAM, using 3 256 MB PC100/PC133 SDRAM modules. ECC RAM modules are supported.Hard driveThe Dell Optiplex GX1p uses IDE hard drives. Two internal expansion bays are available. Due to the age of the system, it is limited to 127 GB per hard drive (see related question below).GraphicsThe Dell OptiPlex GX1p motherboard lacks any AGP slots on its riser card, thus limiting the system to PCI graphics cards.
Common types of DIMM Memory Modules used in computers are a 168 pin SDRAM Module, or a 184 pin DDR SDRAM. These boards are designed to be used in personal computers.
Dual-channel architecture requires a dual-channel-capable motherboard and two or more DDR, DDR2 SDRAM, or DDR3 SDRAM memory modules. The memory modules are installed into matching banks, which are usually color-coded on the motherboard.