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Windows 7: Cold Boot Hang 7 hang up

13 Oct 2009   #1

Seven 64 bits Rc1 7100
Cold Boot Hang 7 hang up

hello there,

I have got a strange problem since i run seven 64 bit Rc ( didn't tried older version nor Rtm ). I think a got the same Pb with Vista 64 bits, but a it was more random.

When i start my computer from scratch, it boots and when i got the 4 colors of the windows logo that go together, it hangs.
then i reboot the comp , i got the message to run the troobleshooter or start windows manually.
I choose the second option, it boots normaly.

I dont have this problem if i put on standby , it wake up OK.
If i boot With F8 , in safe mode , the computer hang on the ClassPNP.sys.
So googled a bit, it seems to be a trouble caused by windows having pb with handling APIC or AHCI.

I dont know what to change .... moreover i dont use the integrated SATA. i use a 3 ware raid card ( see my profil ) . So ACHI is not pb ?

Some one has already got this bug ?

ps : sorry for grammar.

My System SpecsSystem Spec

13 Oct 2009   #2
Microsoft MVP

Windows 7 Ultimate 32bit SP1

This is a problem with system drivers. Are yours up to date? how about your hard drive?
My System SpecsSystem Spec
13 Oct 2009   #3

Seven 64 bits Rc1 7100

For the systems drivers i used a intel chipset driver : i thinks its

For the Hdd , i used the latest 3 ware drivers :

My chipset is an intel P35.

have you got a link for some up to date chipset drivers ?
My System SpecsSystem Spec

15 Oct 2009   #4

Seven 64 bits Rc1 7100

OK , I whish i can close this thread.
It was a hardware pb related to the p5k epu.
I just swap it for a p5q deluxe and everything alright is smooth.

thanks for helps guys.
My System SpecsSystem Spec
12 Feb 2010   #5

Windows 7 x64

Sorry to perform a little thread necromancy here but since this is the top (and it seems only) result when you Google this problem I figured I would give it an answer other than buying new hardware.

I had the exact same issue with my Asus P5B motherboard and found the solution was to make sure BIOS EHCI Hand-Off is enabled under Advanced->USB Configuration in the BIOS.

Funny thing is I figured it out when I was trying to get a USB hub to work. Turns out the hub was dead, but I'll take what I can get.
My System SpecsSystem Spec
12 Feb 2010   #6

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64

Thanks for the update - it may be useful to others.
My System SpecsSystem Spec

 Cold Boot Hang 7 hang up

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