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Date:      Tue, 3 May 2016 23:16:02 +0530
From:      Manish Jain <bourne.identity@hotmail.com>
To:        Warren Block <wblock@wonkity.com>
Cc:        Polytropon <freebsd@edvax.de>, freebsd-questions@freebsd.org, galtsev@kicp.uchicago.edu
Subject:   Re: Is 10.3 i386 jinxed ?
Message-ID:  <BLU437-SMTP761CBBBDFB20DD40709E22F67A0@phx.gbl>
In-Reply-To: <alpine.BSF.2.20.1605031100310.42085@wonkity.com>
References:  <BLU436-SMTP151A41CC0BE118F82C0C189F6660@phx.gbl> <20160430084415.03be443d.freebsd@edvax.de> <5724604D.3020804@hotmail.com> <BLU436-SMTP10004EAA9AA9F6D830DF24CF6670@phx.gbl> <20160430203426.a9d5841b.freebsd@edvax.de> <5725CF38.4090007@hotmail.com> <572752E2.2040708@hotmail.com> <BLU436-SMTP2101D0F5AB8E190FC0ACF0F67A0@phx.gbl> <20160503181839.2aacad7e.freebsd@edvax.de> <BLU436-SMTP187610848C906237B9BDC97F67A0@phx.gbl> <alpine.BSF.2.20.1605031100310.42085@wonkity.com>

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On 05/03/16 22:45, Warren Block wrote:
> On Tue, 3 May 2016, Manish Jain wrote:
>
>>
>> On 05/03/16 21:48, Polytropon wrote:
>>> On Tue, 3 May 2016 21:37:36 +0530, Manish Jain wrote:
>>>> I found what is the problem, with the help of Ultimate Boot CD. UBCD
>>>> says the video memory is corrupt.
>>> Ha! As assumed, it looked too much like hardware error...
>>>
>>>
>>>
>>>> Does that mean I have to trash the
>>>> entire laptop, or is there some way to replace the video memory ?
>>> Depends.
>>>
>>> There are laptops where the GPU memory is allocated from the
>>> installed memory modules that serve as RAM. Other models have
>>> dedicated chips for the GPU which are independent. In such a
>>> case, you probably cannot replace them. But if it's the first
>>> case mentioned, exchange the RAM modules. The memtest results
>>> usually are "false-negative" because the GPU memory is already
>>> "cut off" from the cells available as regular RAM, so those do
>>> not get tested.
>>>
>>>
>>
>> In case the video RAM is part of a dedicated chip, then should it not 
>> be possible to replace the chipset ? With PC's, this is possible, I 
>> know. But laptops, I have no idea.
>
> Possible, yes, but in a notebook it will be soldered to the 
> motherboard, so replacing it would require hot-air rework equipment 
> and experience. Replacing the motherboard is simpler, although 
> sometimes not simple, even if you have done it before.
>
> Neither method is likely to be practical.  The term is "BER": beyond 
> economic repair.  Replacement of the system will be cheaper.
>
>

Is there any way I can find out whether the video RAM is part of the 
main memory or is it wired into a chip ?

Regards
Manish Jain




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