Foxconn FX-250T power supply
The accompanying power supply is another
difference between the RS-224 and the RS-338 (L). In spite of the form factor
(TFX), the installation method and the available power are the same, the PSU is
still remarkably different, both in the appearance and specifications.
The
PSU
The protrusion of the PSU’s case helps
carry a fan with the standard thickness of 25 mm instead of 15 mm in the other models.
The downside is that this PSU limits the size of the cooling system in an
expansion card.
The Foxconn FX-250T is a wireless network
system for fans instead of going out from vents in the PSU as others (except for
the InWin IP-AD160-2 with a 40mm fan located on the outside).
The
honeycomb mesh on the PSU
The outside of the PSU has a standard honeycomb
mesh and a standard 230/115V switch.
The
PSU’s specifications
Having the same capacity as the Channel
Well DSI250P (used in the RS-224 chassis), the Foxconn FX-250T (FSP mentioned
on the label is the actual manufacturer of it) with significantly lower load
capacity of the +12V range (168 compared to 216 watts) and lower load capacity
in a range than +3.3 V and +5 V range
In fact, the actual input power of this PSU
is not higher than 200 watts because it is difficult for you to load in the
range of +3.3 V and +5 V more than 30 watts no matter what components you can install.
The PSU is equipped with the cables and the
following connectors:
·
A mainboard cable with a 24-pin connector (34
cm)
·
A CPU cable with a 4-pin connector (32 cm)
·
One cable with two power connectors and one PATA
plug in software (34 +15 +15 cm)
·
One cable with two SATA power connectors (34 +15
+15 cm)
We have too many
ports here. We doubt whether anyone will need two PATA power connectors for a modern
compact computer. And if you have an old-styled floppy drive, you will hardly
be able to connect it due to lack of space for an electrical connector between
the PSU and the floppy drive slot.
Working with our APC SmartUPS SC 620, the
PSU can switch to the UPS battery when charging to 225 watts. You will
immediately see why the load is so low although there is no active PFC.
The
voltage
The voltage is stable enough. The +12 V
range falls within 5% when the load is low in the range of +12 V and high in
the range of +3.3 V and +5 V while the voltage of the 3.3 V + range gives the
same results in the opposite situation. However, the voltage will not deviate
more than 3% compared to the levels specified in typical load ranges.
The
graph describing the voltage
The line describes the high-frequency
voltage when the load is within the permissible range but the voltage at +5 V
and +12 V appears to oscillate at a lower frequency than what is represented by
the shape of their graphs.
The
graph describing the voltage
The line describing the voltage output at the
double mains frequency is so terrible. The result of it for many times is as
strong as the industrial standards allow. This is probably why the PSU cannot
switch to the UPS battery at full load.
However, the weak ripple weakens quickly when
the load decreases, which in accordance with industrial standards at 215-220
watts. It was very weak at 200 watts load (and we do want to remind you that
you can hardly get anything more from this PSU due to its low load at +12 V
range).
The
graph describing the voltage
The Foxconn FX-250T is quite effective for
a small PSU: 84.2% and a maximum of 80% at typical load. It was only in the
load on the 200 watts (which is almost impossible in practice) and less than 60
watts (as with most other resources).
The
graph describing the voltage
The Foxconn FX-250T is rather vague when it
comes to its noise level. On one hand, it is only a 100 watts load when its fan
reaches the same speed as that of the Antec FP-150-8. But its fan accelerates faster,
reaching to the same speed at maximum speed at 130 watt with the Antec, and
will climb to 175 watts at 2950 RPM. And that speed is then maintained until
the full load.
Thus, the Foxconn RS-338 chassis (L) is quiet
enough when combined with components that consume less power. But if they need
more power than what the PSU can supply, the noise level will rise a nasty way.
Standby
source
The standby source can supply at default at
2 A, but there will not be any reserves at all.
Overall, the Foxconn FX-250T PSU is efficient,
quiet at average load and stable. We are just not happy with its exaggerated
output power (we do not have any complaints about the parameters of it if the
voltage to 200 watts is specified on its label instead of 250 watts), a number
of outdated ports (cable wired up almost all the space is worth), and the noise
level at high loads.
