<div>
Thanks. &nbsp;I wanted to throw this out there to make sure I am not overlooking something.
</div>


Thanks.  I wanted to throw this out there to make sure I am not overlooking something.

<div>
<div class="content wysiwyg-content">
Will installing newer, faster HDD's on older desktop systems put additional strain on power supply?<br />
<br />
I am looking to purchase replacement Hard drives for windows workstations. &nbsp;Most of the computers are Dell Optiplex 320's with older SATA connectors (3gb/s) and 400 watt power supplies.<br />
The existing drives are 250GB/SATA 3.0/8MB Cache/5400rmp.<br />
Will there be any issues replacing failing hard drives with newer WD hard drive that has 7400 RPM, larger 64mb cache? <br />
I don't have the exact specifications power specifications of each part. &nbsp;I would prefer to replace the drives with a model that is similar in power consumption, so it would not put too much additional strain on the power supply. &nbsp; Ideally the new drives will be of better quality (faster, larger).
</div>
</div>


Will installing newer, faster HDD's on older desktop systems put additional strain on power supply?

I am looking to purchase replacement Hard drives for windows workstations.  Most of the computers are Dell Optiplex 320's with older SATA connectors (3gb/s) and 400 watt power supplies.
The existing drives are 250GB/SATA 3.0/8MB Cache/5400rmp.
Will there be any issues replacing failing hard drives with newer WD hard drive that has 7400 RPM, larger 64mb cache? 
I don't have the exact specifications power specifications of each part.  I would prefer to replace the drives with a model that is similar in power consumption, so it would not put too much additional strain on the power supply.   Ideally the new drives will be of better quality (faster, larger).

replacement HDD's -power and other considerations

Storage devices include any device used for storing and retrieving digital information. Hard disk drives (HDDs) use one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), but HDDs remain the dominant medium for secondary storage due to advantages in price per bit and per-device recording capacity. CD-RW (Compact Disc-ReWritable) is a digital optical disc storage format that allows information to be stored outside the mechanical HDD.

Storage Hardware

A desktop computer is a personal computer designed for use at a single location due to its size and power requirements, usually by one person. The most common configuration has a case that houses the power supply, motherboard, disk storage (usually one or more hard disk drives and optical disc drives); a keyboard and mouse for input; and computer monitor and printer for output. The case may be oriented horizontally and placed atop a desk or vertically and placed underneath or beside a desk.

Desktops

Since 1984, Dell has been delivering technology to fit your life.
Dell is in Enterprise, Home Office and Consumer sectors of the market, supplying a broad range of customizable desktops, laptops, notebooks, servers, storage, and network devices.