Hervé

It's more of a Dell design issue where the fan used on this notebook is unsufficient to properly cool the CPU. There's no decent heatsink either. Now that you have SL 10.6.8 running on your D420, you may want to experiment with myHack. You could create your myHack installer with our boot pack and install SL again on a 2nd small HDD partition. That will allow you to compare both methods.

In that case, it's probably as I thought: a 32bit kext only... I checked my D630 nVidia under ML and Mav, i.e. in 64bit mode. The kext is definitely 32/64bit and loads up Ok. I have the Ethernet board reported in Network Pref Pane. Try the attached, but I'm pretty sure you'd get the same file out of the boot pack. BCM5722D.kext.zip

It's the same LAN hardware as fitted to the D630 (and D830 I think), so you can just download the D630 bootpack and grab the kext from there. But I would have thought it was already provided in the M4300 bootpack.

Try to boot in single user mode with -s boot flag. Then check for the presence of the AppleACPIPlatform kext in /Extra/Extensions. If it is, delete the kext of the same name from /System/Library/Extensions, then run the command myfix -t / and the laptop will then reboot.

Just force the laptop off and reboot. No need to take the battery out, just keep pressing the on/off button until your D820 powers off.

Copy to /Extra/Extensions (i.e. /E/E), then run myHack->myFix (full). You should then be able to type the lspci -nn command in Terminal. lspcidrv.kext.zip

Do you have a lspcidrv kext in /E/E? Probably not... You can try in System Report -> USB. You should see your dongle there and when you select it, the PCI ids should be available underneath.

It's not wifi terminology, it's the hardware PCI details. Open up Terminal and type: lspci -nn

Could you provide the lspci details so that I add that USB module to the list? Thanks. Realtek Ven id 0x7392 with Dev id 0x7811?

You will get an installation procedure off the EDP pages at top of your Browser page. The booptack/compatibility chart (available from EDP menu above) provides all necessary kexts to boot installer and proceed with installation. You will see that the compatibility chart does indeed provide a bootpack for M4400 with QX9300 CPU and 1700M graphics. Lucky you! PCMCIA is no longer supported in Mac OS X since 10.6.8 (so it's ok until 10.6.7), so I'm afraid you'll have to forget it.

All (except maybe some of the newest 801.11ac) are of course supported in Windows.

Centrino (in those days) meant Intel mobile CPU + Intel Chipset (Northbridge/Southbridge) + Intel Wireless card. That did not include wired Ethernet interface. Besides, that'll have nothing to do with Ethernet card being detected and/or operational or not. Only Intel wireless cards are unsupported in Mac OS X. Some Intel wired Ethernet interfaces are fully supported. If you can do an lspci -nn command in Terminal and confirm the very model of your card, we can look into it.

That'll depend on the chip it's using. I'd recommend you opt for one of the supported mini-PCIe cards listed in the R&D->Wifi/Bluetooth section.

Using an older version up to v3.1.2 is ok.

In Ukelele, I usually make use of the Logitech layouts found in a subfolder of the same name. Have a look in there for BRA layouts. I also complete this with Double Command to switch mappings between Alt & Windows keys and apply PC-type Home & End keys. The combination of those 2 tools always provides me with full keyboard mappings from SL to ML (Double Command is not supported by Mavericks).

I believe some of the BCM57xx Ethernet kexts provided in the bootpack are 32bit only...

Delete all HW entries from Network Preferences. I would also delete all network preferences plist files in /System/Library/Preferences/SystemConfiguration (or whatever that path is, I may be incorrect but no Hackintosh at hand at the moment). All network hardware should then be added back in a clean manner at next reboot.

What's OS X 6.3.3? You say you installed EDP, but did you actually do the System Build for the D820? Without it, you would basically install an empty /Extra directory which is one of the best way to break a Hackintosh built with myHack.

Appreciate you might be new to Hackintoshing, but it's been known for years that Intel wireless cards are not supported and it's written all over the Internet. In the world of Hackintoshing, poeple are expected to do a bit or research. We can't specify in the chart every hardware that's unsupported. That is why, you will have not failed to notice that for Wireless, we have actually specified the light blue double arrowed circle, meaning "with replacement".

Erm, you would happen to be... badly mistaken! They're 32bit. The 64bit kexts that came out of a Beta version of 10.6.2 are buggy as hell, whether in SL, Lion, ML and beyond. They go back to... 2009 or 2010? They were tried very long ago and quite substantially again when ML got out not far of 18months ago; you should do a bit of research on the Net to dig out old information.

Copy the kext over the old one? Who told you this? I said to put it in /E/E, then re-run myFix.

Just boot your USB installer (without proceeding with installation), then copy the kext to your HDD and re-run myFix (full).

Could be the 4k HDD issue. Look it up on the forum (I can't remember all the links...).

No, same as usual! Copy to /E/E and rerun myFix on the partition. Alternatively, it can be added to the bootpack of USB installer.

There is a patched AICPM kext for 10.9 if you wanna try, unless it's too late... AppleIntelCPUPowerManagement.kext.zip