AMD SB750 User Manual - Page 20

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Subject 3: Thunder Protection Feature

Introduction:

Thunder is such formidable natural force that it can render massive damage to electronic

products of all kinds. In thunderstorm season computer systems without powerful thunder

protection designs are vulnerable to electric surge damage. High-priced building with

thunder protection measures may be a good choice, but usually costly and with corners

uncovered. The best solution for both cybercafés owner and common users would be

Jetway Thunder Series motherboards.

Thunder Protection Technology from Jetway Thunder Series Motherboard

Jetway Thunder series motherboards are integrated with double thunder-protection walls,

one from network port and the other from LAN chip. When it thunders, the first

thunder-protection wall will analyze and recognize thunder surge in network cable and

transfer it to ground wire area. The second thunder-protection wall will protect against any

residual electric current or runaway electrons to ensure safety of network card and other

components of the motherboard.

Laboratory test statistics on IEC61000-4-5 (1.2-50us) standardized thunder electric surge

tests have verified that Jetway Thunder series motherboard can endure up to 9KV electric

surge and protect the system from possible thunder damage.

IEC61000-4-5 (1.2-50us) Standardized Thunder Electric Surge Laboratory Test

Medium rise time: T1=1.2us±30%, T2=50us±30%

Test1: Current Partial Discharge tests on Jetway Thunder Series Motherboards with double

Thunder-protection Walls.

Test Result: Each MB can endure up to 9KV voltage of electric surge. Some motherboards

will restart (mostly depends on LAN chip), but no damage occurs to motherboards or

components of the board. System works normally after a restart.

Test2: Current Partial Discharge tests on Motherboards without Thunder-protection function

Test Result: LAN chips are damaged when testing voltage reached to 5KV. System fails to

operate normally (in most cases systems can not access to network) after a restart.

Conclusion: Jetway's Thunder Series motherboard can guard motherboard from thunder

electric surge damage with effect and ensure system security from as high as 9KV volts of

electric surge.

Bonus of Thunder-protection Motherboard

Jetway Thunder series motherboards adopt dual thunder protection walls to cover every

corner in network loops. Such a complete thunder protection provided to users, especially

cybercafés means less repair cost and more effective business time. Jetway Thunder series

can guard system stability with effect. With Jetway Thunder series motherboards, together

with reasonable disposal of electric wires, proper placing of electric devices, piped network

cables and other necessary thunder protection devices, your computer system will be intact

in thunderstorm weather.