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Power supply issue? New Radeon5850's fan runs at full speed and PC doesn't boot

Power supply issue? New Radeon5850's fan runs at full speed and PC doesn't boot

I recently bought a new ASUS EAH5850 graphics board. I installed it a custom PC which had an ASUS p5n-e SLI mobo along with a 500w Thermaltake W0093RU power supply.

Asked by: Guest | Views: 76
Total answers/comments: 3
Guest [Entry]

"I had this exact same problem this weekend. For me it was the power from my 1000w Powersupply.
The 5850 has qty2 6pin connectors, in the instructions it said I could use either 1 or 2 connectors. I only used 1 and figured I'd save a cable, well bad mistake because the card wouldn't post and I spent an hour trying to figure out why. I added the second power connector and it fired up right away. Hope this helps someone"
Guest [Entry]

"So i got a not at all helpful response from Gigabyte...

Dear Sir,

Thank you for your kindly mail and inquiry. About the issue you mentioned, we suggest you to test this VGA card on other computer and see how it works. Or if possible, please kindly test other VGA card on your motherboard and try again later. Unfortunately, if the problem still remains, a further testing or examination to your system might be required. We are really sorry for the inconvenience you have with our product.

Warranty and RMA issues are normally arranged by your supplier. The warranty terms are dependent on your sale of contract and are what ever your supplier sold you. Please kindly contact your supplier and they shall follow a standard RMA procedure and send the product to the local distributor for RMA service for you. We are sorry if there is any inconvenience.

If your supplier cannot help you, please contact with local distributor for further assistance. For their information, please kindly visit our website by following link: CLICK HERE.

At last, if you still have any further question to this issue or suggestion about our products/service, please do not hesitate to contact with us. If you have any issue different from original, make sure you issue a new form in order to get proper assistance and it may be response faster as well. We will try our best to help you resolve the problem ASAP.

Best Regards,


that's all... :("
Guest [Entry]

"With many cards, the fan will run at full speed until the driver loads. If some problem prevents the driver from loading, e.g. the system does not boot successfully, the fan will continue to run at full speed. I suspect the fan running at full speed is a symptom of another boot problem.

Since it only happens with cold boots, could be related to hard drives and/or optical drives spinning up during power-on. You might look into staggering the drive startup (google it) or test with fewer drives to see if that's the problem."