Re: [coreboot] T520 2630QM 16GB DIMM

[Nico Huber]

On 23.02.2017 01:33, i1w5d7gf38...@tutanota.com wrote:

> It would be really great if you could test out a Core i7-3840QM in the
> G2 socket of the Thinkpad T520. Its the best ivy bridge with 45W TDP and
> the Core i7-3840QM officialy support 32GB of RAM.

Only with 8 ranks of 4GiB. That would be 4 8GiB SO-DIMMs, good luck
squeezing them into a T520.

Nico

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Re: [coreboot] T520 2630QM 16GB DIMM

[i1w5d7gf38keg]

You can buy for example a ivy bridge Thinkpad W530 with 32GB of RAM already 
installed from here:

www.ebay.com/itm/122338642287


23. Feb 2017 01:00 by mytbk920...@gmail.com:


> Ivy Bridge doesn't support 16GB DIMMs either. I've opened a ticket before.
> https://ticket.coreboot.org/issues/56
> On Thu, Feb 23, 2017 at 8:33 AM,  <> i1w5d7gf38...@tutanota.com> > wrote:
>
>>   >> It would be really great if you could test out a Core i7-3840QM 
>> in the G2 socket of the Thinkpad T520. Its the best ivy bridge with 45W TDP 
>> and the Core i7-3840QM officialy support 32GB of RAM.
>>
>> The Lenovo OEM Bios wont support ivy bridge. Coreboot didnt have such 
>> limitations ;)
>>
>> Thanks!
>>
>> 21. Feb 2017 22:08 by >> coreb...@tricnet.de>> :
>>
>>
>>> Hi Arthur,Zitat von Arthur Heymans <>>> arthur at aheymans.xyz>>> >:  
>>> Thomas Richter <>>> coreboot at tricnet.de>>> > writes:>>> >  Is Sandy 
>>> Bridge E so different from Sandy Bridge? Would it be possible>>>    
>>> Sandy Bridge E are high end desktop/server CPUs that have a different>>> 
>>>   socket (lga2011) and likely a different memory controller (4 
>>> channels>>>   instead of 2).>>>   A quick look at datasheet says 
>>> nothing about maximum rank size.>>> I see.>  to replace the 2620QM with 
>>> an Ivy Bridge CPU?>>>    Afaik that should be possible since the 
>>> CPU is socketed on that model>>>   but won't overcome your issue. (same 
>>> limitation)>>> Thank your for your time to explain. Seems like I have to 
>>> look for a  new laptop then ;-).It was a fun project, I learned a lot and 
>>> I'm really impressed by the  usability. Will definitely keep coreboot on 
>>> the t520!Best,Thomas
>>   
>> --
>> coreboot mailing list: >> coreboot@coreboot.org
>> https://www.coreboot.org/mailman/listinfo/coreboot
>>
>
>
>
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Re: [coreboot] T520 2630QM 16GB DIMM

[Iru Cai]

Ivy Bridge doesn't support 16GB DIMMs either. I've opened a ticket before.
https://ticket.coreboot.org/issues/56

On Thu, Feb 23, 2017 at 8:33 AM,  wrote:

> It would be really great if you could test out a Core i7-3840QM in the G2
> socket of the Thinkpad T520. Its the best ivy bridge with 45W TDP and the
> Core i7-3840QM officialy support 32GB of RAM.
>
> The Lenovo OEM Bios wont support ivy bridge. Coreboot didnt have such
> limitations ;)
>
> Thanks!
>
> 21. Feb 2017 22:08 by coreb...@tricnet.de
> 
> :
>
> Hi Arthur,
>
> Zitat von Arthur Heymans  >:
>
> >* Thomas Richter  >> writes:
> *>>* Is Sandy Bridge E so different from Sandy Bridge? Would it be possible
> *>>* Sandy Bridge E are high end desktop/server CPUs that have a different
> *>* socket (lga2011) and likely a different memory controller (4 channels
> *>* instead of 2).
> *>* A quick look at datasheet says nothing about maximum rank size.
> *
> I see.
>
> >>* to replace the 2620QM with an Ivy Bridge CPU?
> *>>* Afaik that should be possible since the CPU is socketed on that model
> *>* but won't overcome your issue. (same limitation)
> *
> Thank your for your time to explain. Seems like I have to look for a
> new laptop then ;-).
>
> It was a fun project, I learned a lot and I'm really impressed by the
> usability. Will definitely keep coreboot on the t520!
>
> Best,
>
> Thomas
>
>
> --
> coreboot mailing list: coreboot@coreboot.org
> https://www.coreboot.org/mailman/listinfo/coreboot
>



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Re: [coreboot] T520 2630QM 16GB DIMM

[i1w5d7gf38keg]

It would be really great if you could test out a Core i7-3840QM in the G2 
socket of the Thinkpad T520. Its the best ivy bridge with 45W TDP and the Core 
i7-3840QM officialy support 32GB of RAM.

The Lenovo OEM Bios wont support ivy bridge. Coreboot didnt have such 
limitations ;)

Thanks!

21. Feb 2017 22:08 by coreb...@tricnet.de:


> Hi Arthur,Zitat von Arthur Heymans <> arthur at aheymans.xyz> >:>>  Thomas 
> Richter <> coreboot at tricnet.de> > writes:> >>>  Is Sandy Bridge E so 
> different from Sandy Bridge? Would it be possible> >> >>  Sandy Bridge E are 
> high end desktop/server CPUs that have a different> >>  socket (lga2011) and 
> likely a different memory controller (4 channels> >>  instead of 2).> >>  A 
> quick look at datasheet says nothing about maximum rank size.> I see.>>>  to 
> replace the 2620QM with an Ivy Bridge CPU?> >> >>  Afaik that should be 
> possible since the CPU is socketed on that model> >>  but won't overcome your 
> issue. (same limitation)> Thank your for your time to explain. Seems like I 
> have to look for a  new laptop then ;-).It was a fun project, I learned a lot 
> and I'm really impressed by the  usability. Will definitely keep coreboot on 
> the t520!Best,Thomas-- 
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Re: [coreboot] T520 2630QM 16GB DIMM

[Thomas Richter]

Hi Arthur,

Zitat von Arthur Heymans :


Thomas Richter  writes:

Is Sandy Bridge E so different from Sandy Bridge? Would it be possible


Sandy Bridge E are high end desktop/server CPUs that have a different
socket (lga2011) and likely a different memory controller (4 channels
instead of 2).
A quick look at datasheet says nothing about maximum rank size.


I see.


to replace the 2620QM with an Ivy Bridge CPU?


Afaik that should be possible since the CPU is socketed on that model
but won't overcome your issue. (same limitation)


Thank your for your time to explain. Seems like I have to look for a  
new laptop then ;-).


It was a fun project, I learned a lot and I'm really impressed by the  
usability. Will definitely keep coreboot on the t520!


Best,

Thomas

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Re: [coreboot] T520 2630QM 16GB DIMM

[Arthur Heymans]

Thomas Richter  writes:

> Hi,
>
> Zitat von Arthur Heymans :
>
>>> TL;DR - Has anybody either successfully used 16GB DDR3 modules on
>>> SandyBridge, can rule it out, or has ideas about how to dig deeper?
>>
>> According to Sandy bridge datasheets only up to 4GB DDR3 technology is
>> supported, which makes it possibly to use dimms with 2 ranks, with each
>> rank having a capacity of 4GB, hence max 8GB per DIMM.
>> This is a hardware limitation.
>
> Thank you for your answer. That's what I also read, but here it is
> stated that some Asus Sandy Bridge boards support such modules:
>
> http://www.prnewswire.com/news-releases/first-8gb-ddr3-components-and-16gb-unbuffered-dimms--so-dimms-by-im-intelligent-memory-266613731.html
>
> Is Sandy Bridge E so different from Sandy Bridge? Would it be possible

Sandy Bridge E are high end desktop/server CPUs that have a different
socket (lga2011) and likely a different memory controller (4 channels
instead of 2).
A quick look at datasheet says nothing about maximum rank size.

> to replace the 2620QM with an Ivy Bridge CPU?

Afaik that should be possible since the CPU is socketed on that model
but won't overcome your issue. (same limitation)

>
> Best,
>
> Thomas


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Re: [coreboot] T520 2630QM 16GB DIMM

[Thomas Richter]

Hi,

Zitat von Arthur Heymans :


TL;DR - Has anybody either successfully used 16GB DDR3 modules on
SandyBridge, can rule it out, or has ideas about how to dig deeper?


According to Sandy bridge datasheets only up to 4GB DDR3 technology is
supported, which makes it possibly to use dimms with 2 ranks, with each
rank having a capacity of 4GB, hence max 8GB per DIMM.
This is a hardware limitation.


Thank you for your answer. That's what I also read, but here it is  
stated that some Asus Sandy Bridge boards support such modules:


http://www.prnewswire.com/news-releases/first-8gb-ddr3-components-and-16gb-unbuffered-dimms--so-dimms-by-im-intelligent-memory-266613731.html

Is Sandy Bridge E so different from Sandy Bridge? Would it be possible  
to replace the 2620QM with an Ivy Bridge CPU?


Best,

Thomas

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Re: [coreboot] T520 2630QM 16GB DIMM

[Arthur Heymans]

t...@tricnet.de writes:

> Hi,
>
> TL;DR - Has anybody either successfully used 16GB DDR3 modules on
> SandyBridge, can rule it out, or has ideas about how to dig deeper?
>
> I recently bought 2 crucial 16GB DDR3 SODIMM modules to upgrade my
> T520 (2630QM CPU) to 32 GB. As it didn't work I did some research and
> found a couple of postings blaming the problem on Intel not providing
> proper memory reference code (e.g.
> http://forum.notebookreview.com/threads/upgrading-ram.756463/page-2)
> preventing the BIOS from initializing the RAM.
>
> When I looked for alternative BIOSes I came across coreboot. Compiled
> and installed it - works fine with 2*8GB modules. With one or two 16GB
> modules I still saw the SeaBIOS info but then it crashed. Adding
> memtest as a secondary payload and starting it worked, but memtest
> crashes instantly when it starts testing.
>

According to Sandy bridge datasheets only up to 4GB DDR3 technology is
supported, which makes it possibly to use dimms with 2 ranks, with each
rank having a capacity of 4GB, hence max 8GB per DIMM.
This is a hardware limitation.
<#secure method=pgpmime mode=sign>


Kind regards
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[coreboot] T520 2630QM 16GB DIMM

[tho]

Hi,

TL;DR - Has anybody either successfully used 16GB DDR3 modules on  
SandyBridge, can rule it out, or has ideas about how to dig deeper?


I recently bought 2 crucial 16GB DDR3 SODIMM modules to upgrade my  
T520 (2630QM CPU) to 32 GB. As it didn't work I did some research and  
found a couple of postings blaming the problem on Intel not providing  
proper memory reference code (e.g.  
http://forum.notebookreview.com/threads/upgrading-ram.756463/page-2)  
preventing the BIOS from initializing the RAM.


When I looked for alternative BIOSes I came across coreboot. Compiled  
and installed it - works fine with 2*8GB modules. With one or two 16GB  
modules I still saw the SeaBIOS info but then it crashed. Adding  
memtest as a secondary payload and starting it worked, but memtest  
crashes instantly when it starts testing.


So I got a beaglebone for EHCI debugging. Please find the logs for  
2*8GB modules and 1*16GB + 1*8GB module at http://www.tricnet.de/t520/


There is already a related issue in the tracker -  
https://ticket.coreboot.org/issues/56 but I do not understand how  
there could be a pin missing (as suggested in the comment)? According  
to  
http://www.anandtech.com/show/7742/im-intelligent-memory-to-release-16gb-unregistered-ddr3-modules the column address needs one more line (A11) for the 8gbit chips, which is provided anyways because it is needed for regular row  
addressing.


I can afford to spend a bit more time on the issue but I'm not sure  
how to continue. Beside that I just found out, that Intel states 16GB  
max RAM for the 2630QM but 32GB for the 2720QM


http://ark.intel.com/de/products/52219/Intel-Core-i7-2630QM-Processor-6M-Cache-up-to-2_90-GHz
https://ark.intel.com/de/products/50067/Intel-Core-i7-2720QM-Processor-6M-Cache-up-to-3_30-GHz

So, do you have any ideas about how to continue?

Best,

Thomas

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