Original Link: https://www.anandtech.com/show/1862
Compatibility issue with Tyan boards & Antec PSU's
by Tuan Nguyen on November 15, 2005 9:49 AM EST- Posted in
- Motherboards
For those who are currently in the market for dual Opteron boards and are preferring products manufactured by Tyan, be sure to carefully pick power supplies with some research before purchase. We have been advised that certain Antec power supplies are having issues with the following motherboards from Tyan:
Thunder K8S Pro (S2882)
Thunder K8SD Pro (S2882-D)
Thunder K8W (S2885)
Thunder K8WE (S2895)
All the above boards are based on AMD's 8000 series chipsets except the Thunder K8WE (S2895) which uses NVIDIA's nForce Professional 2200 and 2050 south bridges.
The issues that are affecting the above motherboards have to do with a power fluctuation on the 12V rail that seems to be occurring only with Antec True Power 2 EPS power supplies. The units do not appear to be delivering consistent power -- often dropping to as low as 11.3V on the 12V rail. While some power supply units pass quality control tests initially, they end up failing after extended use. Using non-Antec power supplies solves the issue and for now we can only recommend that you use this work around until an official statement from Antec can be given. Tyan motherboards however, have always enjoyed a strong reputation for rock-solid stability -- although you may be required to be picky about which components you attach to the board.
Most power supplies have become all but commodity items on the market in the recent years but there are still companies out there that produce top-quality grade products. With all the newest high drain components coming out, the time is approaching again for us to do a power supply roundup.