I've just tried to install iDeneb 10.5.5 on my Dell with the following specs:

I try booting afterwards, but the kernel immediately panics with the following error:

I installed using the SSE2 SpeedStep kernel and Intel chipset drivers.

Does anyone have any ideas?

Thanks.

Try to disable HT feature in the BIOS, and check if you have SATA AHCI Support too

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HP Pavilion Elite m9250f
iAtkos v5i (10.5.8), Asus IPIBL-LB MOD BIOS, Intel Quad Core Q6600, 4GB RAM (800mhz), 2x500GB, nVidia 8600GT (Works), ALC888S (Works), Wireless RT73 (Works), LAN (Works) - How to Install - Blog - Hardware Combos - FAQ by TJ2K7
Macbook Pro 13"
Follow meh: @icchansan

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Thanks for your reply icchansan.

I don't think my Pentium D has HT technology, at least in Windows it only shows two processors.

I can't find an option in my BIOS for SATA AHCI, there's just an option for the RAID to be set to Auto or Always RAID.

¬_¬;;

theres a guy here, well its a old thread, look for it who disable HT and got the installation, ima check where to disable HT feature in the BIOS, I have a similiar PC in the office.

I will post again soon as possible

P.S. Maybe you need to update the BIOS, you can disable the HT in BIOS, look for it on 'Performance'

__________________
HP Pavilion Elite m9250f
iAtkos v5i (10.5.8), Asus IPIBL-LB MOD BIOS, Intel Quad Core Q6600, 4GB RAM (800mhz), 2x500GB, nVidia 8600GT (Works), ALC888S (Works), Wireless RT73 (Works), LAN (Works) - How to Install - Blog - Hardware Combos - FAQ by TJ2K7
Macbook Pro 13"
Follow meh: @icchansan

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The Pentium 4 processor that came with it are HT-enabled, but the Pentium D (dual core) don't have HT, and I have a Pentium D.

I'm pretty sure I have the latest BIOS but I'm going to try to update it again tonight.

Anyway did you try using cpus=1 on darwin?

__________________
HP Pavilion Elite m9250f
iAtkos v5i (10.5.8), Asus IPIBL-LB MOD BIOS, Intel Quad Core Q6600, 4GB RAM (800mhz), 2x500GB, nVidia 8600GT (Works), ALC888S (Works), Wireless RT73 (Works), LAN (Works) - How to Install - Blog - Hardware Combos - FAQ by TJ2K7
Macbook Pro 13"
Follow meh: @icchansan

If you just want to support hackint0sh.org with a donation click here

I'll give that a try thanks.

Where do I type that in?

Restart, when darwin screen appear Press F8 and then type:
if you got the same error then try to change the kernel

__________________
HP Pavilion Elite m9250f
iAtkos v5i (10.5.8), Asus IPIBL-LB MOD BIOS, Intel Quad Core Q6600, 4GB RAM (800mhz), 2x500GB, nVidia 8600GT (Works), ALC888S (Works), Wireless RT73 (Works), LAN (Works) - How to Install - Blog - Hardware Combos - FAQ by TJ2K7
Macbook Pro 13"
Follow meh: @icchansan

If you just want to support hackint0sh.org with a donation click here

Thanks, I'll give that a try when I get home!

BTW, does that mean that I'll be disabling one CPU?

Yeh its just to run 1 core

__________________
HP Pavilion Elite m9250f
iAtkos v5i (10.5.8), Asus IPIBL-LB MOD BIOS, Intel Quad Core Q6600, 4GB RAM (800mhz), 2x500GB, nVidia 8600GT (Works), ALC888S (Works), Wireless RT73 (Works), LAN (Works) - How to Install - Blog - Hardware Combos - FAQ by TJ2K7
Macbook Pro 13"
Follow meh: @icchansan

If you just want to support hackint0sh.org with a donation click here