Silverstone Strider 750w ST75F PSU

Testing

Load Testing

In order for the results from all current and future PSU reviews to remain fair and comparable, Overclock3D uses a custom built Power Supply load stress tester.

The tester will be placing the following loads on each of the ST75F's rails:

+3.3v - 20a Load
+5.0v - 20a Load
+12v1 - 10a Load
+12v2 - 10a Load
+12v3 - 10a Load
+12v4 - 10a Load

The results are collected from a Mastech MAS-345 Multimeter which logs its readings via RS232 to a PC.

Silverstone Strider ST75F +3.3v Silverstone Strider ST75F +5.0v

The ST75F showed excellent results on both the +3.3v and 5v rails keeping fluctuation to under 0.02v. This is a massive improvement over the ST60F, which suffered a significant voltage droop of 0.29v on its +5v rail.

Silverstone Strider ST75F +12v1 Silverstone Strider ST75F +12v2

Silverstone Strider ST75F +12v3 Silverstone Strider ST75F +12v4

Continuing the trend, the ST75F shows excellent voltage regulation on the +12v rails, this time managing to keep fluctuation at or below 0.06v.


Efficiency Testing

Efficiency tests are performed by measuring the wattage consumed by the power supply at the mains against the power (in watts) consumed by the OC3D power supply stress tester. These results may not be 100% accurate, but have proven to be extremely close to results obtained from professional equipment.

Silverstone Strider ST75F Efficiency

The Strider ST75F was placed under a load of 646 watts. This counts for a total of 86% of the power supplies rated output. At this load, the power supply required 798 watts from the mains to produce the 646 watts required by our custom made power supply tester. Therefore the efficiency of this power supply can be found by a simple equation: (646 / 798) * 100, which works out to be an efficiency rating of 80.9%.


Noise Testing

Possibly the hardest part of any PSU review is summarising the level of noise given out by the unit. The threshold for what is considered 'noisy' varies from person to person and therefore what I may consider a quiet unit, another person may consider extremely loud. A common way to resolve this issue is to use a dBA meter to measure the units noise level, however this doesn't take into account the pitch (type) of noise emitted and whether it is likely to irritate end users.

For this reason OC3D records all power supplies at idle and load in wav format for you to make your own informed decisions. All recordings are taken at 30cm away from the PSU and outside of a PC case. You will need to remember that noise levels will be reduced by varying amounts once the PSU has been installed inside your PC enclosure.

Idle Recording - Download
Load Recording - Download

As previously mentioned, the ST75F utilises exactly the same fan as the ST60F and as a result my opinion of the noise levels has not changed. The results from the ST60F review can be found here.

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Most Recent Comments

20-10-2006, 04:29:20

JN
**Exclusive**

"In keeping up with the competition, Silverstone have added a new unit to their modular PSU range. The ST75F boasts 150w more power than its predacessor, but will it perform any better?"

Linky

20-10-2006, 08:41:29

PV5150
Ah great, more power, sexy looks and modular cabling to boot I love my ST60F, but if one of these bad boys had been around when I was about to purchase...I would have spent the extra moolah. Great review as usual Jim, well done

20-10-2006, 12:45:49

ai_01
nother great psu review reps to the mod!

20-10-2006, 12:58:39

AKtodaface
Awesome review jim!

20-10-2006, 15:44:12

JN
Taa lads

22-10-2006, 17:53:21

BUFF
iirc this is an Etasis design?

looks like excellent vfm

22-10-2006, 18:12:30

JN
Quote:
Originally Posted by BUFF
iirc this is an Etasis design?

looks like excellent vfm
Yeah, its an Etasis afaik. The internals are a fair bit better than the previous ST60F tho.

17-12-2006, 08:51:56

cichy202
I wonder why this PSU didn't get SLi certificate for dual 8800GTX... Anybody know why? :/

17-12-2006, 08:53:17

Toxcity
Oooo Nice looking beast that!

Oh, and superb reveiw!

17-12-2006, 09:10:05

FarFarAway
Quote:
Originally Posted by name='cichy202'
I wonder why this PSU didn't get SLi certificate for dual 8800GTX... Anybody know why? :/
Perhaps because it takes an age to get the certification?

17-12-2006, 09:14:08

llwyd
Quote:
Originally Posted by name='Kempez'
Perhaps because it takes an age to get the certification?
+ a day

22-12-2006, 10:56:47

cichy202
So is it able to run an Extreme SLi PC after OC?
Reply
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