HP external USB hard drive installation problem
HP external USB hard drive installation problem
(OP)
This may seem odd, but I have a HP 40GB portable USB hard drive that's about 2 months old. It worked like a dream until three days ago. Suddenly, instead of connecting my XP systems (I've tried it on 5 XP computers) ask for an installation disk for a Cypress AT2LP RC42. When I click to find drivers, it states that drivers could be found.

RE: HP external USB hard drive installation problem
RE: HP external USB hard drive installation problem
RE: HP external USB hard drive installation problem
If you look on google, it seems to be a recent problem (January 06') and i think it might be something to do with a Microsoft security update that has enabled driver signing on the drive. Something along these lines would explain why many peoples drives have this error regardless of make.
I have sourced some drivers that windows has asked for and will let you know if this sorts it.
RE: HP external USB hard drive installation problem
RE: HP external USB hard drive installation problem
RE: HP external USB hard drive installation problem
Has anyone been able to rectify this problem, or find appropriate drivers?
RE: HP external USB hard drive installation problem
Cypress manufactures the most commonly used USB-2-IDE chips (usually AT2LP RC42). This chip seems to have a problem lately, since tons of external harddrives and burners etc. are stopping to work. Instead this chip is recognized by Windows as a new hardware.
I had the problem after using my 300 GB external Trekstor harddrive for 6 months...! And guess what, Trekstor doesn't allow to open the housing and delete the confidential data, I would loose my warranty. And of course they wouldn't want to send a replacement Kit or anything.
And since there's no way I can give that data away, I'm screwed. The HDD inside is perfectly fine by the way. Of course I took it out to check if the backups are ok.
I hope this helps you a little
MK
RE: HP external USB hard drive installation problem
Just stopped working with the message Cypress AT2LP RC42.
P.C world did replace them without any problems but i lot a lot of backup data.
Didn't expect all 3 to fail !!
Don't buy this Hard drive !!
RE: HP external USB hard drive installation problem
I had the same problem with my HDD, a 320GB Toshiba external (well, inside was a WesternDigital drive, as Toshiba only makes 2,5inch and 1,8inch drives). I spent 2 weeks trying to solve it and finally figured out:
The USB chip (manufactured by Cypress !) can fulfill multiple roles. What will do once it received power depends on a small PLA array (non-volatile memory). For some reasons, probably poor manufacturing process by the vendor of external HDD, the programing of the chip is not done properly and after a while will "forget" it's settings.
The good news is that we can reprogram that chip ourselves, and this is done so:
1. First an alternative driver is to be installed, that driver is necesary to put the chipset in programming mode.
2. A new programing is performed. This takes very short as there are only 255bytes
3. External drive is power cycled and voila, it works again.
My unit was still under warranty. The added bonus is that all your data is still intact and accesible.
Toshiba Netherlands sent me to the shop where I bought it and the shop immediatelly offered to give me a replacement. Unfortuantelly I could not accept it since I did not wanted to loose all data I had. I suspected all the time that I could gain access to data by removing the drive from inside the enclosure and directly connecting it to the ATA100 interface in my PC, but that would mean also renouncing to the rest of the warranty (10months). In the end, after almost 2 weeks of research I could repair it using the method above.
On short:
If your unit is still under warranty and you can dispose of the data inside, you can send it back.
If otherwise, you can write me to grieg45@yahoo.com for the utilities.
RE: HP external USB hard drive installation problem
}...the bane of my life!
http://www.fuzzyd.co.uk
RE: HP external USB hard drive installation problem
RE: HP external USB hard drive installation problem
Phillip