Installation & Testing
Installing the Toughpower XT 750W was relatively easy for my setup. Prior to installing the power supply I attached the rubber pad which helps reduce any vibration and noise from the power supply; I notice quite a difference over my old power supply. The only thing worth mentioning during installation is for lower PSU mounted motherboards. In order to install the PSU in my NZXT Tempest the indicator lights would be facing towards the motherboard tray, leaving them not visible.
The following system was used in testing:
Case: NZXT Tempest
Motherboard: XFX 680i LT SLI
CPU: Q6600 @ 2.4 GHz
Memory: 2x2GB OCZ SLI Ready DDR2 800 MHz
CPU cooling: Cooler Master V10
Drives:
1 x SATA 640GB HDD
1 x PATA DVD Drive
1 x SATA DVD-RW Drive
I stress tested the Thermaltake Toughpower XT 750W using OCCT Perestroika on Windows Vista 32-bit on a 30 minute test.
VCore: Ripple 0.06 (4.68%)
3.3V: Ripple 0.00 (0.00%)
5V: Ripple: 0.02 (0.51%)
12V: Ripple: 0.06 (0.50%)
The VCore’s ripple was the highest out of all the tests and only fluctuated by at most 0.08V. The 3.3V rail stuck at a constant 3.27 throughout the entire testing and didn’t ripple at all; pretty stable I must say.
Both the 5V and 12V ripples were only around 0.50%, but I noticed that the voltage was undervolted a decent amount for the 12V rail. The 5V rail stayed at about 4.75V, which isn’t too bad, but the 12V was undervolted at nearly 11.2V the entire testing period.
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