Ultra X-Pro and X-Finity 800Ws – Details
The Ultra X-Pro 800W and X-Finity 800W power supplies have their roots in workstation/server class units and are nearly identical to one another. The three main differences between the two are the case color, cable type, and +12V output assignment. The X-Pro 800W comes with black sleeved, round cables and the aluminum enclosure is finished with a clear anodized coating. The X-Finity 800W is essentially the same power supply except it features Ultra’s FlexForce cables and has a black anodized finish.
 |
|
In addition to a higher output rating, the X-Pro 800W and X-Finity 800W are different from the X-Pro 600W in several ways. Both of the 800W power supplies feature a larger (longer) aluminum enclosure, dual 80mm cooling fans, and have two output transformers instead of just one.
 |
|
Ultra X-Pro 800W Rear Ultra X-Finity 800W Front
Both of the two 800W power supplies incorporate Ultra’s After Spin Technology (AST).
 |
After Spin Technology is used to quiet the system and aid in prolonging the life of your components. Connectors for chassis fans are thermostatically controlled; internal fan speeds are reduced when temperatures inside the case are low. PSU, chassis and CPU fan connectors remain spinning several minutes after the PC is powered down allowing the system to gradually cool down after use. |
The X-Pro 800W and X-Finity 800W both use two 80mm cooling fans in a push-pull configuration. The fans are made by Young Lin Tech (DFS801512H). They are rated for a maximum speed of 3,000 rpm, have 11 blades, and use sleeve bearings. The speed of the fans is automatically controlled by the internal component temperature (speeds up as the combined load and temperature increases). Air is drawn into the power supply thru the front fan and exhausted out the back thru the rear fan.
The two Ultra 800W power supplies support the ATX12V v2.2 specification and are rated for a combined, maximum output power of 800 watts at up to 40+°C ambient air temperature (internal case air temperature). Again, I would prefer to see 50ºC instead as that is more the norm for high-end PSU. The Ultra X-Pro 800W and X-Finity 800W PSUs incorporate universal input (automatically adjusts the AC line voltage) and active PFC.
Ultra 800W PSU Specifications
Notice that the majority of the rated output capacity is supplied by the +12V section.
This is typical of most newer power supplies and a result of changes in the PC industry that more and more rely on +12V instead of +5V and +3.3V. With 660W of power available on the +12V rails, the Ultra 800Ws should be capable of powering most any new system you may want to build.
