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Tjmax of both T7100 and T5600 is 100°C. You should therefore check the contents of the plist file of your /Extra/IntelCPUmonitor kext as the default Tjmax value is 0. You'll get incorrect (lower than real) T° readings with an incorrect Tjmax value in the kext. I have nothing specific to performance in terms of kexts in my /E/E folder, it's just the EDP-installed kexts, including TSCsync. So, if you have a myHack/EDP installation, you have the same as I do. I just have better T7500 CPUs (bigger cache, higher freq.).

Well, for those who really insist on trying and make their own evaluation of ML without graphics support... D630-X3100_ML_Extra.zip The included DSDT is LoRes/WXGA version. Change for HiRes/WXGA+ as required. Copy/move the PStateMenu plist to /Library/LaunchAgents for SpeedStep emulator app to auto-load.

Tried to boot with PciRoot=1 ? What add-on graphic card did you have before removal? nVidia kexts should be available off kexts.com (I know NVEnabler is).

No experience with the D820, but your D630 should not feel sluggish. Is SpeedStep working Ok? what CPU in those laptops? Regarding T° readings, they look terrific but suspiciously low for a D630 with nVidia GPU. Did you set your Tjmax to the correct values in the plist file of /Extra/IntelCPUmonitor kext? For a T7500, Tjmax is 100°C and other CPUs may have a different value -> refer to ark.intel for the correct values. My D630 nVidia never reports CPU T° lower than low-50s and GPU T° lower than high-70s... And all that despite a thorough cleaning, renewal of thermal paste + copper shim on the GPU.

'just had a look at the specs: mini-tower, desktop, small form factor (SFF) and ultra small form factor (USFF). All based on the same underlying specs: Pentium 4/Pentium D/Celeron or Core (Solo? Duo? 2 Duo?) CPU Intel Q965 Express chipset (which I understand supports C2D CPUs) DDR2-533/667 only for USFF model (vs. 533/667/800 for the others) Intel GMA3000 integrated graphics (with no apparent discrete card capability for the USFF model), which I understand to be different from HD 3000 integrated LAN card of unspecified origin (would need PCI vendor id + device id to fully identify) ADI 1983 HDA audio SATA 1.5 & 2.0 controller (believed to be ICH8) So the real items to look for are GMA3000 graphics support (may work with GMA950 kexts as GMA3000 is built on GMA900 & 950) + ADI 1983 audio support (I understand this to work with patched AppleHDA or maybe VoodooHDA). LAN support can be secondary or non-issue if add-on wireless card is used. The rest should be a no brainer.

It's the IOATAFamily kext, which clearly needs to be added to the bootpack. I put a fresh copy of it here: https://osxlatitude.com/index.php?/topic/2103-sata-not-visible-during-install/ It simply needs to be added to /Extra/Extensions folder of the myHack installer, followed by myFix, prior to OS X installation. One of the key items is the graphics support, depending on what you use: integrated hardware (is it HD3000?) or discrete add-on card.

If you simply add the kext to /Extra/Extensions folder of your installer, just run myFix on the media afterwards so that permissions & cache are properly rebuilt.

Ok, that's something different. It's on the Optiplex 745, right? There are a few posts about Lion installation on that model from last year. Have a look there for guidance (in Dell Desktop section).

Pretty much the same machine, mainly different screen size.

Well, GMA950-based D620 and D430 do wake from sleep. But they require a BIOS system password (+ password bypass on wake) to be set or they will KP on wake! You could try that. I'd say it's likely to work on the Dell 1505.

Looks like it: https://osxlatitude.com/index.php?/topic/2013-dell-optiplex-745-ultra-small-form-factor/ Give us your specs, then we'll see...

You could try, or check the boot plist of the bootpack to see if it contains that EFI string, in case it goes amiss after EDP is run.

Try and get a copy of IOATAFamily kext added to /E/E. Make sure the plist of AppleIntelPIIXATA plugin covers ICH-8, or whatever controller your D830 has, but I'd expect the same as the D630. In fact, try the attached... IOATAFamily.kext.zip

That set of kexts looks Ok. The only thing I can think of is that you're using Lion 10.7.5 directly, not a previous release like 10.7 or 10.7.2. I have no personal experience on installing 10.7.5 directly on a D830, just with 10.7.2 which I then updated to 10.7.5 (this worked Ok). However, I have seen several people experiencing difficulties installing Lion versions greater than 10.7.3. Or maybe it's not a full retail version. I did not even know Apple offered Lion 10.7.5 as a downloadable version; well I certainly haven't seen Lion available for download for quite some time... I'd advise you to try installing a different version of Lion, but I guess you probably don't have that. Let me check which kexts is used for SATA controller and we can check if it's there or loads on your system.

You should boot with '-v' option to see where it gets stuck if you don't even get to Mac OS X desktop. Alternatively, try to boot with '-x' and check the logs.

I'm on my D620 nVidia NV110m right now, a system extremely similar to the D820 and I'm running Cham v2.2 r2170, so these recent versions are Ok with nVidia card. In the boot plist, you should have GraphicsEnabler activated and, possibly, some long chain in Device Properties at the bottom. Assuming things look Ok at the moment, take a backup of your /Extra folder somewhere before running EDP. You would then be able to restore current Chameleon boot plist, SMBIOS plist or DSDT, in case something went wrong... You could also try to simply update Chameleon through dropbox to rule in/out Cham version.

Clearly an issue with your USB installer. Assuming you used the correct bootpack, can you list the kexts (with versions) you have in the /Extra? Which version of myHack are you using and which OS X version are you trying to install?

Mmm, could be a Chameleon version issue, it may not support the NVS110m. Can you try and re-install an older Chameleon, say v2.1 v1791 (that used to be provided by EDP)? Check for FileNVRAM in /Extra/modules and move if present before rebooting. I'll check the latest Cham version on my D620 nVidia (NVS110m) tonight and report back, but I think I already upgraded to Cham v2169 or thereabout...

Some custom BIOSes caused problems. I don't know about the D520, I don't own one; so, as explained in the thread, try it/use it at your own risk... Just be prepared. Anyway, this is not the place to discuss BIOS updates or Windows. This is a thread about Lion on D520.

Well, there you go. It's good to know though...

With BootCD/ModCD, there really is no need for a bastardised installation... It's totally straightforward, indeed incomplete in terms of installation, but sufficent to install myHack and create the targeted USB Vanilla installer. For SL, you can either: 1) install SL 10.6.3, install EDP & run kext installation, install 10.6.8 combo update and re-run EDP kext installation before reboot or 2) install SL 10.6.3, install 10.6.8 combo update, install EDP & run kext installation For ML, it's pretty much the same, but there's no need to re-run EDP kext installation after update to 10.8.2 if you've installed the kexts already.

Hi and Bienvenue! It's no secret that SL was/is an excellent version of OS X in terms of performance. Apple certainly did optimize their code on that one. SL really flies on the Latitude D Series, especially when compared to Lion or ML. Re: Xcode installation, unfortunately, your error message is pretty vague: "unknown errors"... Did you check the logs, just in case? Create a post in the support section if you need more help.

Mmm, well, not all custom BIOS were successful, so careful... If you don't have an operational Win install, create a recovery USB key with a basic DOS bootable installation like Unetbootin. Then simply copy the downloadable exec from Dell on it and run it. That'll update your BIOS. If I were you I'd stick to standard/regular BIOS A08 and use regular DSDT file. Re: .hdr extraction, a little home work will suffice. I'd even expect you to find the magic trick in less than a minute...

BIOS A08 for the D520 is an official Dell update, available from the Dell web site. Have a look at it (support section) for details of what it brings compared to previous versions but you shouldn't expect any negative impact on your existing XP installation. Re .hdr file, that can be extracted from the downloadable BIOS archive (tools are available from the web), but if you have XP, why use a linux bios upgrade tool??? Re: OS X installation, read-up the EDP pages & documentation that explain the whole procedure in details. You'll probably try and fail but learn along the way.

Small update with progress to date... Working: MyHack (& ModCD/ModUSB) installation of SL 10.6.3 + combo update to 10.6.8 IDE & SATA controller (with IOATAFamily kext containing ICH5-capable AppleIntelPIIXATA plugin) audio (with AppleAudioAC97 kext) 32 & 64bit kernel mode with ModCD/ModUSB installation various legacy kernels (from Darwin 10.4.0 to 10.8.0 v2) full CPUs detection (2 CPUs, 2 threads if/with 2nd CPU + Hyperthreading are enabled in BIOS) native CPU power management (no NullCPUPowerManagement kext) restart & shutdown Not working: audio in 64bit kernel mode (would-be 64bit AC'97 kext does not appear to work in 64bit kernel mode) built-in Adaptec AIC-7901 Ultra320 SCSI adapter is not recognised/detected at all (haven't found a kext for it) nVidia FX1400 support (I can only force resolution through Cham boot plist, no acceleration or FrameBuffer support) With myHack installation, the Precision 670 does not appear to support NullCPUPowerManagement + PState kexts (it accepts default NullCPUPowerManagement with ModCD installation though). NullCPUPowerManagement resets the computer during startup and causes boot loop and PState will render it unbootable. This could be due to the fact that the Xeon Irwindale CPUs are of an unsupported/unknown type for Chameleon, I'm not sure. Keeping this in mind, updating from 10.6.3 to 10.6.8 works OOB. For some reason, I cannot get the nVidia Quadro FX1400 to work properly. I've used a Chameleon bootloader that supports the card and I've patched the GeForce + NVdaNV40Hal + NVdaResMan kexts to include the card device id (0x00ce), but that remains unsuccessful. More work to be done on that, or that card will have to go (well, I have a spare ATI Radeon Pro X1300 that I now know to be fully supported in SL). I more or less achieve identical results installing through Nawcom's ModCD/ModUSB or myHack + Generic /Extra. I can update both installations to 10.6.8 without issue but, contrary to its ModCD/ModUSB's counterpart, the myHack installation cannot boot in 64bit kernel mode for some unknown reason.