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You are here: Home / Tech Help
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Batteries Tech Help : Chargers Tech Help : Cables Tech Help : Memory Tech Help :
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- 1. I want to upgrade my existing Hard Drive, how difficult is it?
- Physically, it is not usually difficult at all. Complications only arise in installing the operating system and copying over your files and settings. This does take some time (depending on your operating system [Windows/Linux etc]) and needs some expertise - or at least good help information! The key is to know what you want to achieve before you even order a new drive and to plan the steps needed before you start, as getting it wrong can mean doing it all over again, or much worse, permanently losing important data. One good way is to install the new drive alongside the existing one, then do the software install and transfer the settings and data afterwards, keeping the old drive installed as backup and extra capacity. Watch this space for full install help pages in the near future.
- 2. What is the difference between SATA, SATA I and SATA II?
- SATA I is a Serial ATA interface (for Hard Drives etc.) which has a maximum theoretical transfer rate of 1.5 Mega Bits per second (Mb/S). SATA II is the same thing, but with a maximum theoretical transfer rate of 3Mb/S. SATA on it's own simply means that the level (I / II) has not been specified. Usually it refers to SATA I, but it could equally mean that the author has simply omitted the I / II and it could in fact be either one. SATA I drives will almost always work on SATA II interface cards/motherboards, but at the slower transfer rate of the drive. SATA II drives will almost always work on earlier SATA I interface cards/motherboards, but this time at the slower rate of the card/motherboard. If in doubt, check with the manufacturer of the interface card or motherboard. Jumpers may need to be set on the drive to determine SATA I or II to match the card/motherboard it is connected to. The Drive and interface card/motherboard both have to be SATA II to benefit from the higher transfer rate.
- 3. I see ROHS listed against several items, what does this mean?
- ROHS is an EU Directive which stands for "the Restriction Of the use of certain Hazardous Substances' in electrical and electronic equipment". This Directive bans the placing on the EU market of new electrical and electronic equipment which contains more than the agreed levels of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl (PBB) and polybrominated diphenyl ether (PBDE) flame retardants. ROHS items are therefore much more environmentally friendly.
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