Enermax Infiniti EIN650AWT

Manufacturer:
Price:	£110.8 inc VAT
Reviewer:	James Gorbold
Review Date:	Jul 2007
Stability	55/55	100%
Features	19/25	76%
Values	17/20	85%
Overall	91%

Verdict: Not infinite, but still 650W of stable power.

We saw the first Infiniti PSU, a 720W model, a few months ago when it took our PSU Labs test by storm, offering a combination of three perfectly stable 12V rails with a super-quiet fan and modular cables. However, at £152, the 720W Infiniti was expensive.

We're therefore very pleased to see a lower-cost Infiniti, which is a 650W model that sells for a smidgen over £110. Like its more powerful sibling, this Infiniti is cooled by a quiet, temperature-controlled 135mm fan. It also supports CoolGuard, a small circuit that keeps the PC's fans spinning for up to two minutes after it's switched off to prevent hot-running components from overheating. A 24-pin ATX connector is hardwired into the back of the Infiniti, along with two 4-pin ATX12 plugs, a 3-pin fan plug and a 6/8-pin PCI-E plug. Modular cables are supplied for two more 6-pin PCI-E plugs, along with a variety of S-ATA and Molex plugs.

The Infiniti has three 12V rails: 12V1 is rated at 28A and supplies power to the slave PCI-E plug and three of the modular cables, while 12V2 supplies 28A to the master PCI-E plug and the remaining three modular cables. 12V3 is rated up to a whopping 30A and supplies power to the motherboard and 6/8-pin PCI-E cable. The Infiniti was stable at full load, and drew 795W from the mains to generate 650W, which makes it 82 per cent efficient.

Conclusion

The Infiniti is the cheapest PSU we've seen that can support an 8-pin PCI-E graphics card such as the ATi Radeon HD 2900XT. As 650W should be enough for most PCs, it's a good choice, especially since it's rock-solid and quiet, and the supplied modular cables make it easy to build a tidy PC.