USB FAN AND PSU

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CIS123
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Joined: 11/15/2010
Posts: 1

DEAR SIR

I HAVE TOW QUESTIONS PLEASE

1.I'M USING A USB FAN FOR COOLING MY GPU CARD BUT THE FAN KEEPS COOLING AFTER I HIBENATE MY COMPUTER,
HOW I CAN STOP THE USB FAN AFTER HIBERNATE?
AND IS IT SAFE FOR THE USB PORT TO POWER THE FAN FOR LONG TIME (I'M USING 80 MM CASE FAN )?

2.I WANT TO UPGRADE MY GPU CARD SO I NEED A NEW PSU THAT GIVES MOR WATTAGE IS IT SAFE FOR MY FUJITSU SIEMENS PC IF I INSTALL A NONE FUJITSU SIEMENS PSU? .

SYSTEM
FUJITSU SIEMENS (ESPRIMO P3520) PC

INTEL Q 9550 CPU
4 GB RAM
INTE G41 CHIPSET FUJITSU SIEMENS MB
250 HDD

THANKS FOR YOUR HELP

Yours faithfully