I've read through all of the articles I could find regarding Studio 1745 issues, however I don't have the issue of noise because the fan will NOT startup or run at all.
I ordered and installed the replacement fan and heat-sink, no difference. The fan doesn't even flinch when I turn it on.
BTW - I don't know if this makes a difference but I had to replace the hard drive and reinstall the o/s. I know that sounds odd but I've seen several articles where users have stated that their fan quits working after a fresh o/s install.
This laptop belongs to a client, I do not know if the fan was working when it was brought to me, the user claims that he never had an issue with the laptop overheating/locking up and black screen.
Thanks for writing to us.
Have you tried updating the BIOS?
If the issue is same with old fan and new fan then looks to be the connector on motherboard is faulty.
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