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List:       gentoo-user
Subject:    Re: [gentoo-user] Is lshw reporting correctly?
From:       Mick <michaelkintzios () gmail ! com>
Date:       2014-12-28 19:35:46
Message-ID: 201412281935.48766.michaelkintzios () gmail ! com
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On Wednesday 24 Dec 2014 09:14:43 Mick wrote:
> On Tuesday 23 Dec 2014 21:53:07 Poison BL. wrote:
> > On Tue, Dec 23, 2014 at 1:53 PM, Mick <michaelkintzios@gmail.com> wrote:
> > > This is what I see when I plugged in two memory modules:
> > > =======================================================
> > > 
> > >      *-memory
> > >      
> > >           description: System Memory
> > >           physical id: 2f
> > >           slot: System board or motherboard
> > >           size: 16GiB
> > >         
> > >         *-bank:0
> > >         
> > >              description: DIMM DDR3 Synchronous 1333 MHz (0.8 ns)
> > >              product: Array1_PartNumber1
> > >              vendor: A1_Manufacturer1
> > >              physical id: 0
> > >              serial: A1_SerNum1
> > >              slot: DIMM_A1
> > >              size: 8GiB
> > >              width: 64 bits
> > >              clock: 1333MHz (0.8ns)
> > >         
> > >         *-bank:1
> > >         
> > >              description: [empty]
> > >              product: Array1_PartNumber0
> > >              vendor: A1_Manufacturer0
> > >              physical id: 1
> > >              serial: A1_SerNum0
> > >              slot: DIMM_A2
> > >         
> > >         *-bank:2
> > >         
> > >              description: DIMM DDR3 Synchronous 1333 MHz (0.8 ns)
> > >              product: F3-2133C9-8GXH
> > >              vendor: Undefined
> > >              physical id: 2
> > >              serial: 00000000
> > >              slot: DIMM_B1
> > >              size: 8GiB
> > >              width: 64 bits
> > >              clock: 1333MHz (0.8ns)
> > >         
> > >         *-bank:3
> > >         
> > >              description: [empty]
> > >              product: Array1_PartNumber3
> > >              vendor: A1_Manufacturer3
> > >              physical id: 3
> > >              serial: A1_SerNum3
> > >              slot: DIMM_B2
> > > 
> > > ========================================
> > > 
> > > These were bought as a set from Amazon:
> > > 
> > > http://www.amazon.co.uk/Ripjaws-PC17000-2133MHz-Memory-Platforms/dp/B00
> > > 7C OT274/
> > > 
> > > but as you can see above only the second module reports a product code
> > > (product: F3-2133C9-8GXH), while the first module shows
> > > "Array1_PartNumber1".
> > > 
> > > Is this normal?  Is there something wrong with the memory module(s),
> > > the MoBo, or even the lshw command?
> > > 
> > > --
> > > Regards,
> > > Mick
> > 
> > Primarily, I suspect that anything over about 1600MHz is going to
> > require poking the bios (or uefi) to actually run it at its spec'd
> > clock (enabling following the XMP profile defined by the ram, if the
> > mobo directly supports doing so, is usually all it takes), otherwise
> > it down-steps to either 1333 or 1600 as 'standard' defined speeds for
> > ddr3.
> 
> I've set the UEFI memory menu to 'Automatic', so I expect that when I start
> compiling stuff it will increase to higher settings.

Hmm ... it didn't, or at least it wasn't reported by lshw.


> > As for why it's not reporting the product, vendor, and s/n's
> > properly, I'm not sure. I'd try swapping them to see if the issue
> > moves with them, but as long as they're actually able to run stable
> > (and reliably) at their spec'd rates, and they really are the sizes
> > they claim, I'd be inclined not to care whether the nvram values
> > beyond the speed profiles are read properly.
> 
> I've swapped them and I can see that lshw displays exactly the same
> information, so it seems like a MoBo issue.  Hmmm ...
> 
> I know now that the memory is OK.  I'll finish the gentoo installation and
> then I will flash the UEFI firmware with a more recent version to see if it
> is caused by dodgy firmware.
> 
> Thanks for your help.

I flashed the MoBo with the latest firmware.  The lshw output is the same and 
swapping the RAM modules does not change what the MoBo reports.  Only Bank 2 
reports the product number.

I O/C the memory to 2133MHz, at least that's what the UEFI is telling me.  The 
lshw stayed the same reporting 1333MHz as shown above.  So, I'm guessing that 
the UEFI is not talking to lshw in a particularly informative way.

-- 
Regards,
Mick

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