Comments on: How to upgrade memory in Toshiba Satellite M100/M105 laptop

By: Hamish

Hamish — Fri, 16 Dec 2011 20:12:04 +0000

**Update** Ive managed to solve the issue of the black screen and beeps. You will need to update your BIOS. Look on the Toshiba website for downloads. Put in your model, and look for the latest BIOS updates. Download and install, I ran the update within Windows, no extra drive required. Pretty simple as long as you follow the directions. Now my System Information shows 1.87GB (2Gb installed). Thank you Inside My Laptop for the simple install instructions, and to all the people who left their input.

By: Hamish

Hamish — Fri, 16 Dec 2011 18:47:23 +0000

I see a few people have had beeps on start up and a black screen, as did I.
I’m running a M105-S1021. The motherboard has a max of 2Gb, seems they were wrong.

I received a Black screen (all lights, no start up)when I removed the 512mb stick and installed 2x 1Gb sticks.
I received a Black screen and beeps (again all lights, no start up) when I had just one 1GB stick installed under keyboard.
The computer would start with the 512mb under the keyboard installed again along with 1GB underneath; however My System properties only shows 896mb ram with 1.5gb installed.
Does anyone have an explanation for the beeps and black screens?

By: Laptop Tech

Laptop Tech — Tue, 06 Dec 2011 19:56:02 +0000

@ Paul K,

In my M100-JG2, I put in 2 (two) sticks of 2Gbyte ddr2 pc2-6400 ram. Bios sees all 4Gb of it, memory check only counts about 3072 Mb. System reports 2.99GBytes. Overall, system seems faster. I believe the rest (about 1 GB) may be used for the gma 945 video but is not available for programs. Or is the extra ram just wasted?

Are you running a 32-bit OS? It has some limitations and cannot see all 4GB or RAM.

By: Paul K

Paul K — Tue, 06 Dec 2011 03:37:37 +0000

In my M100-JG2, I put in 2 (two) sticks of 2Gbyte ddr2 pc2-6400 ram. Bios sees all 4Gb of it, memory check only counts about 3072 Mb. System reports 2.99GBytes. Overall, system seems faster. I believe the rest (about 1 GB) may be used for the gma 945 video but is not available for programs. Or is the extra ram just wasted? Thanks.

By: Susie

Susie — Sat, 10 Sep 2011 02:24:05 +0000

I have the same problem as John in response #35. I installed the memory, turned on the laptop and heard a few beeps but screen didn’t come back on. What do I need to do? Thanks.

By: Jon

Jon — Wed, 17 Aug 2011 03:02:54 +0000

When I installed the memory and revolted the machine beeped a few times but the screen did not come back on. Any ideas?

By: Felipe

Felipe — Tue, 05 Jul 2011 18:56:48 +0000

Thanks a lot men, I were troubled to find the hidden slot…

Thnak You !!!

By: Laptop Tech

Laptop Tech — Sun, 05 Jun 2011 16:41:11 +0000

@ Trudy,

I have an M105 with only 512 mb of memory. Is it true what the fellow said up above about needed a 64 bit operating system to recognize more than 2.99 gb of ram?

According to Microsoft, Windows XP 32-bit supports up to 4GB RAM. From my experience, Windows XP 32-bit OS will not show more than 2.99GB in system properties.

I have windows xp (which I think is only 32 bit) – could i install a 1gb card and a 2gb card – would that be better?

It's up to you. You can use 1GB+2GB or 2GB+2GB. There will be no difference. 3GB RAM is plenty for Windows XP.

By: Trudy

Trudy — Sat, 04 Jun 2011 04:27:56 +0000

Hi – I have an M105 with only 512 mb of memory. Is it true what the fellow said up above about needed a 64 bit operating system to recognize more than 2.99 gb of ram? I have windows xp (which I think is only 32 bit) – could i install a 1gb card and a 2gb card – would that be better?

Thanks!

Trudy

By: Laptop Tech

Laptop Tech — Sat, 28 May 2011 23:58:43 +0000

@ JR,

Sir i assumed that the stock memory is 512MB DDR2 PC-533, i bought 2GB DDR2 PC-800. i was unable to uninstall the stock, and i installed the 2GB at the expansion slot at the bottom, so its running with both memory. will this affect the speed of my lappy..? pls advice

Your laptop motherboard has 667MHz FSB.
The original memory you have installed is DDR2-533 PC2-4200 which runs at 533MHz – a little bit slower than laptop can handle.
If you install new 2GB DDR2 PC-800 with original 512MB DDR2 PC-533, the whole system will run at 533MHz.
If you remove the original 512MB DDR2 PC-533 module and install just new 2GB DDR2 PC-800, the laptop will run at 667MHz, which is a little bit faster.

I don’t think you will see any noticeable difference between 2.5GB RAM running at 533MHz and 2GB RAM running at 667MHz.