Hello, It has been a few years since I have exercised a bug in a BIOS, but they are computer programs just like any other and thus subject to the same types of issues as any program code, regardless of whether they load from a disk drive or an EEPROM chip.
MemTest86+ v4.00 reports 4030M RAM, so there is only 66MB of RAM missing, which I am less concerned about (1.6% is not much). No issues were found with the RAM during the few minutes I let the test run. The copy of Windows 7 Ultimate Edition x64 I installed was obtained through MSDN, so it does not have any of the Lenovo software installed yet. Regards, Aryeh Goretsky At 10:00 AM 12/17/2009, you wrote:
Message: 8 Date: Thu, 17 Dec 2009 10:52:21 -0600 From: Chris Schumann <[email protected]> Subject: Re: [Thinkpad] [T61p] memory check at POST detects 3070GB with 4GB installed To: [email protected] Message-ID: <[email protected]> Content-Type: text/plain; charset=UTF-8; format=flowed On 12/17/2009 03:58 AM, Aryeh Goretsky (home) wrote: > Hello, > > I noticed that my ThinkPad T61p (Model 6459-CTO) only detects > 3070MB of RAM when performing the extended test at POST, but > installed memory in the BIOS reports 4096MB. I have two 2GB > SO-DIMMs from Crucial installed. Swapping the SO-DIMMS makes > no difference. > > Motherboard was replaced under EasyServ because of this and I > had some problems running 3-D graphic intensive applications > (appears to be a known issue with the nVidia graphics chip). > Upon its return, I installed a new HDD and loaded Windows 7. > > The BIOS Version is 2.26 and the Embedded Controller Version > is 1.08. I'd wager it's a bug in the BIOS since all the memory appears to your OS. You could try something like MemTest86+ or another RAM diagnostic. PC Doctor might even be on the machine already too. Chris
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