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Need AHCI od MSI G41M-P28
#1
Is it possible? Can anyone help?
Original bios is here. http://download.msi.com/bos_exe/7592vQB.zip

many thanks in advance!
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quote
#2
(05-20-2014, 04:35 AM)lonerider Wrote: Is it possible? Can anyone help?
Original bios is here. http://download.msi.com/bos_exe/7592vQB.zip

many thanks in advance!

It's been a few years since your post but in case someone lands here via search engine wondering about AHCI on that motherboard (and related motherboards), let's review the basics ...

--

AHCI STATUS with ICH7 SouthBridge family members ...

ICH7 --> NO ... [fake AHCI if AHCI option re-enabled in BIOS Setup]
ICH7B --> NO ... [fake AHCI if AHCI option re-enabled in BIOS Setup]
ICH7R --> YES ... [working AHCI]
ICH7DH --> YES ... [working AHCI]
ICH7M --> YES ... [working AHCI]

--

MSI G41M-S01, -P26 and -P28 seem to be Intel 82801GB ICH7 only.

I took a good look at my own MSI G41M-P28 motherboards yesterday, while updating the BIOS option ROMs and other modules, as noted in this thread:
https://www.bios-mods.com/forum/Thread-G...IOS-Update

From best I could tell this is how my -P28s show up on ICH7 device enumeration:
- Intel 82801GB ICH7
- Intel® 82801G (ICH7 Family) Ultra ATA Storage Controllers - 27DF
- Intel® 82801GB/GR/GH (ICH7 Family) Serial ATA Storage Controller [IDE mode] - 27C0

"Re-enabling" "AHCI" on the BIOS Setup for this motherboard (with Intel 82801GB plain ICH7) is nothing more than placebo, won't work.  This is not a BIOS limitation, it is a chipset limitation .. unless Intel is pulling a "trolljob" with plain ICH7.  Evidence suggests AHCI (and RAID) doesn't really exist natively for -P28.

It's possible MSI had intentions on delivering -P28 with proper ICH7GR, etc.  In the original bios, they did include an option rom RAID module meant for device 8086:27c3 (82801GR/GDH (ICH7R/ICH7DH) SATA Controller [RAID mode]) but no such ICH7 exists for this motherboard ! .. I happily updated that option rom regardless, for completeness' sake !

Cheers,
XmX
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quote


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