Top 10 Ultra Grade items
Nesteq E2CS X-Strike Ultra-Quiet PSUs, 80PLUS
- Replaces the Nesteq EECS Power Plus PSUs, 135mm Fan | E2CS X-Strike 850W Ultra-Quiet PSU [7 in stock] Review | £134.78 (£158.37 inc. VAT) | |
| E2CS X-Strike 750W Ultra-Quiet PSU [13 in stock]  (3 customer reviews) - Review | £116.52 (£136.91 inc. VAT) | |
| E2CS X-Strike 600W Ultra-Quiet PSU [7 in stock] Review | £89.57 (£105.24 inc. VAT) | |
| E2CS X-Strike 500W Ultra-Quiet PSU [5 in stock] Review | £78.25 (£91.94 inc. VAT) | |
 | E2CS X-Strike 400W Ultra-Quiet PSU [5 on order] Review | £68.69 (£80.71 inc. VAT) |
If you are looking for a PSU with that provides then the Nesteq X-Strike series will do just that! It features everything it's predecessor had (including the excellent EECS cabling system), but you would expect that. What you may not expect is a built-in PSU tester! That's right every version of the X-Strike is supplied with this excellent feature!
EECS - Enhanced Easy Connection System
EECS, short for Enhanced Easy Connection System, is the next evolution of the modular power supply. Just like an "ordinary" modular PSU, the PSU has sockets rather than fixed wires for powering the components installed in your PC, and what makes a modular PSU so great is that you only need to connect the cables you require for powering the system. However, Nesteq's EECS PSUs take this one step further by allowing you to connect different power connectors on the same cable rather than using two separate cables. For example, the image below shows one cable from the EECS PSU supplying power to 2 x 4-pin Molex, 2 x SATA and 1 x floppy device. A non-EECS modular PSU would require at least two cables to provide power to these devices. This feature further reduces the amount of cables used inside the system, which makes things nice and tidy!
Low noise level and high efficiency - 80PLUS certified
As with all the power supplies we have available, the EECS series are extremely quiet. In fact we think these are one of the quietest ranges of fanned PSUs that we currently stock. Their noise level is reduced by Nesteq's choice of 135mm fan and the fact that they have designed their power supplies with such a high efficiency. With a maximum efficiency of 88%, less waste heat is generated resulting in a cooler-running PSU. This in turn means the fan does not need to spin very fast which means lower noise levels! Nesteq claim that in normal operation the fan will not exceed 19dBA. Our tests do confirm this, we are very impressed with the lack of noise it produced.
Power Monitoring Panel
The Power Monitoring Panel on each E2CS X-Strike power supply indicates if there are problems with the most important power output rails. If there should be a power failure on one of the +12V, +5V, +3.3V or +5Vsb rails, the green LED will be off. Included in the package is an adaptor, which can be plugged to test the power supply even without connecting it to a motherboard.
Image showing the built-in Power Monitoring Panel
Other features
Other features include Smart Fan Controlling System (SFCS) which allows you to monitor the fan speed of the PSU fan by connecting it to a free 3-pin fan header on the motherboard. The PSU also features SVSS, Smart Voltage Stabilisation System. This provides a stable output voltage for the CPU and graphics card(s) with a tolerance of below 3%.
Features
- Conforms to ATX Version 2.2 / EPS 2.91 / BTX 1.0a
- High quality components for ultimate reliability and performance
- Patented EECS - Enhanced Easy Connecting System
- Patented "+12V Power - Plus" technology
- DIY - cable length and configuration
- High efficiency - up to 88%, conforms to 80 PLUS standard
- Large ultra-quiet 135 mm fan with Hydraumatic bearing
- Compatible with NVIDIA SLI and AMD/ATI CrossFireX
Specifications
| X-Strike 400W | X-Strike 500W | X-Strike 600W | X-Strike 750W | |
|---|---|---|---|---|
| Model number | XS-400 | XS-500 | XS-600 | XS-750 |
| ATX12V Version | 2.2 | |||
| +3.3V maximum output current | 20 A | 25 A | ||
| +5V maximum output current | 20 A | 25 A | ||
| +12V1 maximum output current | 18 A | 22 A | 25 A | 20 A |
| +12V2 maximum output current | 18 A | 22 A | 25 A | 20 A |
| +12V3 maximum output current | 18 A | 22 A | 25 A | |
| +12V4 maximum output current | 18 A | 22 A | 25 A | |
| +12V5 maximum output current | - | 25 A | ||
| +12V6 maximum output current | - | 25 A | ||
| +5VSB maximum standby current | 3 A | 6 A | ||
| Combined maximum output +12V | 360 W | 432 W | 504 W | 600 W |
| Combined maximum output +3.3V / +5V | 130 W | 150 W | ||
| Fan speed control | Automatic | |||
| Acoustic noise level | 28 db(A) Max, 19 db(A) under normal load | |||
| Dimensions | 86 x 150 x 160 mm | |||
| Mains input voltage | 90-264 VAC, 47-63 Hz | |||
| Mains input voltage selection | Auto | |||
| Remote power on / off | Yes | |||
| Over voltage protection | Yes, on all outputs | |||
| Short circuit protection | Yes, on all outputs | |||
| Safety approvals | RoHS, CE, TUV, FCC | |||
| Monitor pass-through power socket | No | |||
| Master power on/off switch | Yes | |||
| Length of motherboard power cable | 60 cm (approx) | |||
| Warranty | 36 months | |||
| Model number | XS-850 |
| ATX12V Version | 2.2 |
| +3.3V maximum output current | 28 A |
| +5V maximum output current | 30 A |
| +12V1 maximum output current | 25 A |
| +12V2 maximum output current | 25 A |
| +12V3 maximum output current | 25 A |
| +12V4 maximum output current | 25 A |
| +12V5 maximum output current | 20 A |
| +12V6 maximum output current | 20 A |
| +5VSB maximum standby current | 6 A |
| Combined maximum output +12V | 700 W |
| Combined maximum output +3.3V / +5V | 180 W |
| Fan speed control | Automatic |
| Acoustic noise level | 28 db(A) Max, 19 db(A) under normal load |
| Dimensions | 86 x 150 x 160 mm |
| Mains input voltage | 90-264 VAC, 47-63 Hz |
| Mains input voltage selection | Auto |
| Remote power on / off | Yes |
| Over voltage protection | Yes, on all outputs |
| Short circuit protection | Yes, on all outputs |
| Safety approvals | RoHS, CE, TUV, FCC |
| Monitor pass-through power socket | No |
| Master power on/off switch | Yes |
| Length of motherboard power cable | 60 cm (approx) |
| Warranty | 36 months |
Customer Reviews
X-Strike 750W (3)
Gary Rooksby - Posted: 20 Jul 2009 15:57 (8/10)
I bought this PSU as a replacement/upgrade for a quiet PSU bought previously from Quiet PC which failed. When I checked the paperwork it was a couple of weeks out of guarantee. However, when I called QuietPC they were happy to do a full refund! The failed unit had been discontinued so I upgraded to this beauty and paid the difference. It's amazingly quiet, *highly* efficient (88%) and, at 750W, easily powerful for my setup.
Comes with a bag full of modular cables (very high quality with easy release clips and individually shrouded.
Wasn't too impressed with the diag LEDs on the back, which worked fine with the included tester PSB but which didn't work when connected to my own mobo. Nevertheless, it worked faultlessly, is quieter than my CPU fan (also a quiet model) and oozes quality.
Expensive but a long term investment.
Most importantly, buy with utter confidence from QuietPC. Their service is second to none!
Michael Coakley - Posted: 9 Sep 2009 08:00 (8/10)
Apart from the rather bizarre manual, lots of tech info but not the most helpful thing to me, this was a very straight forward and easy install. The modular connectors are great, daisy chained my devices, no more leads being stretched too tight. Up and running in about 15mins. Lots of oomph for the future now. I'm not a serious mod type, so this was perfect for me. It is as quiet as a lamb !!
Trevor Callaghan - Posted: 19 Feb 2010 17:45 (7/10)
It came with a continental EU power lead (not UK)! No big deal as I just used the lead from my existing PSU (an old Zalman one, also from Quiet PC), but if I was building a new machine that would have been a total headache.
Also, the manual is basically useless - so if you need step by step "how to install a PSU" type guidance you're done for.
Other than those fairly minor points, this is a great PSU. Quiet, easy to install, comes with the best cabling and accessories I've ever seen.
See also:
Ultra-Quiet PSUs 300W to 500W
Quiet Power Supplies
Ultra-Quiet PSUs 501W to 600W
Ultra-Quiet PSUs 601W to 1000W
