I am trying to install iatkos v7 on my HP 9890 but before the install starts I get a grey background with the apple logo and then it reboots. Do I need a different kernel or what can be the problem?

My system is:
Chipset: Intel G43 express
CPU: Intel Core 2 Quad Q9300
Graphic card: NVIDIA GeForce GT230

Ideally you should boot in Verbose Mode until you have your machine running the way you want. This can be done by using the -v boot-flag. When you start the computer up you will see the Darwin bootloader screen. This screen will count down and by pressing the requested key will give you a prompt to enter these boot-options. Now instead of getting a gray screen with Apple logo, you will get useful information about the boot process and see at which line it hangs on.

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MOBO: Z77MX-QUO-AOS CPU: Core i7 3770K GPU: MSI N760 TF 2GD5/OC Case: Modded MacPro2,1
Memory: 32GB Corsair Vengeance (CMY32GX3M4A1600C9) Wifi: Airport Extreme bcm94321MCA BIOS: HermitCrab Labs H3A.816M
Monitor: AOC Q2963Pm 29" WFHD 2560x1080 21:9
Interests: KDE on Apple Darwin, Keeping it real with the command line, Helping those that help themselves

When I boot with -v it goes to the darwin screen but then it reboots again, I can't see what it says

I would try to boot using cpus=1 bootflag or try to use the 9.2.0 ToH Kernel using /toh on bootprompt.

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