The OEM products is expected to be integrated into equiment by expert technicians, therefore, the manufacturer may assume that detailed literature is not required. Often, the technical support information provided on a manufactuer's web site or included CD disk, and is often the only assistance you may receive. Be aware of OEM processors, which often carry 30 day warranty. Some OEM resellers will not extend the warranty beyond 30 days, and manufacturers have no obligation to replace an OEM product without prior agreement. The value is added to the items when integrated into a system or PC which comes with it's warranty.
Most merchants expect some computer hardware knowledge on the part of the purchaser.
Often, the discount comes at the expense of the support. Also, keep in mind the difficulty of installation on the product being purchased. Hardware with extensive software, such as DVD-RAM, Video Editing hardware, Tape Drives, and even some newer Graphics Cards may require more than rudimentary insight into how PC hardware works, and maybe best purchased with full support and warranty. Buggy new products and support Purchasing newly released products are often a challenge, since manufacturers may not have all the bugs worked out on every hardware configuration. Often times, a BETA stage takes place during the first initial release of a product, where the manufacturer starts to learn the shortcomings of their new products.