I have following queries related to RAM? Could anyone please explain them?
1.] What's the difference between DDR PC 2100, DDR PC 2700, DDR PC 3200 & DDR PC 4000 RAM modules?
2.] How to determine the frequency of your RAM module if it's not written in the module. I mean how to determine if it's 266 MHz or 400 MHz?

3.] What will be the impact on performance of using two DDR RAM modules of different frequency, say 400 MHz and 266 MHz?
4.] Is 533 MHz, RAM module a DDR2 RAM module?

Recently I bought an HP laser printer for home use, I have Dell PC a Few years old. When I tried to connect the printer to the PC it can’t be connected. The PC has window XP installed on it, with 1 GB ram, 500 GB HDD. I also installed the drivers for the printer, but the issue couldn’t be resolved

I purchased a Gear 4 Halo 3 docking station recently and it’s all good except when I listen to music from my iPhone. It doesn't allow me to adjust the volume. It doesn't have a remote or other hardware volume controls. I am able to control the volume though if I play music from the radio.

I have a Chromebook and I'm having problems connecting my Cool Stream Bluetooth Stereo Headphones. When I play music from the Chromebook, it plays fine, but if it is connected to the headset, the audio stops playing and I could not hit play anymore. Can somebody assist me on this please?

I have a Logitech h540 USB headset. It is supposed to be a plug and play device, but it prompted that the device was not properly installed. It cannot find a driver. I am running Windows 7 Professional 32 bit. I tried it on a different laptop with the same OS version and it worked perfectly. Is it an OS problem on my HP or is there a driver I can manually download or install? Thanks.

I just received my new CPU cooler, an NH-D15 for my Z97 Asus-a. I am having a hard time installing it. I cannot get the last tension screws and I've been trying to get them in for more than an hour. Do you have tips on how I can get the screws in?