SilverStone’s FX600 is quiet, non-modular Flex ATX power supply. It’s rated Platinum by Cybenetics and includes 5 year warranty from SilverStone. SilverStone’s FX600 is rebranded ENP-7660B from Enhance Electronics and can be purchased from Amazon for around $189 US.
| MODEL | SilverStone FX600 |
| FORM FACTOR | Flex ATX |
| CERTIFICATION | Platinum (Cybenetics) |
| DIMENSIONS | 81.5 x 40.5 x 150mm (W x D x L) |
| RATING | Rated for 600W continues power output at 40°C & 24/7 operation |
| OPERATING TEMPERATURE | 0°C ~ 40°C |
| SAFETY | Over Current Protection Over Power Protection (110~130%) Over Voltage Protection Under Voltage Protection Short Circuit Protection Over Temperature Protection |
| FAN SPECIFICATIONS | Yate Loon D40BM-12C 40x20mm (7500.rpm max) |
| FAN NOISE | 20 dB (minimum at 1M) |
| CONNECTORS | 1x 24 / 20-PIN Motherboard 2x 4-PIN EPS / ATX 12V + 1x 8-PIN EPS (single cable) 2x 6+2-PIN PCIe (single cable) 4x SATA 3x 4-PIN Molex + 1x 4-PIN Floppy (single cable) |
| MODULAR | N |
BOX CONTENTS
The PSU chassis and cables are all black and use lead-free paint, with long enough cables for easy routing. SilverStone FX600 includes the essential motherboard & PCIe connectors, along with Molex, Floppy and SATA. There’s no included power switch this time like FX500, however the PSU will power down under no load scenarios.
FAN PROFILE & NOISE
SilverStone’s FX600 was progressively tested upto 600W for 25 minutes per cycle in 20°C ambient room temperature.
| WATTAGE | FAN RPM | dB(A) at 50CM |
| 50W | 1600 | 31.5 |
| 100W | 1660 | 32 |
| 200W | 1700 | 32.5 |
| 300W | 1750 | 33 |
| 400W | 1800 | 33 |
| 500W | 3750 | 35.5 |
| 600W | 7380 | 48 |
The FX600 power supply is cooled by 40x20mm Yate Loon D40BM-12C fan with max RPM of 7500. The PSU stays extremely quiet at/or below 420W and was reasonably quiet at 500W. The FX600 fan RPM and noise levels dramatically increase at 600W (100% load).
FAN REPLACEMENT (NOCTUA NF-A4)
| WATTAGE | FAN RPM | dB(A) at 50CM |
| 50W | 3470 | 32 |
| 100W | 3470 | 32 |
| 200W | 3600 | 32.5 |
| 300W | 3650 | 32.5 |
| 400W | 3862 | 33 |
| 500W | 3962 | 33.5 |
Fan replacement in SilverStone’s FX600 is for educational purposes only. The stock fan in the SilverStone FX600 can be replaced with Noctua’s NF-A4x20, which can support upto 420W (our recommendation) without cooling issues. Powerdraw above 420W may result in your overheating or longevity issues. Opening your power supply may also void your warranty.
CONCLUSIONS
The FX600 is excellent choice for Flex-ATX power supply and doesn’t suffer fan motor noise, like some other Enhance ENP-7660B units, thanks to alternative fan choise.
Molex and Floppy connectors are almost unused in modern Ultra Small Form Factor PC’s, which is the target audience for FX600. The additional cables restricts airflow and makes cable management more difficult. We’d like to these cables removed or restricted to single connector, or alternatively modular option in future, but understand this would significantly increase pricing.