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Memory Upgrade As I couldn't get the computer to boot up with an old RAM 128mb + new 256mb, I put the original 128mb back in but it would still not boot up. I have a feeling I should be putting in 2 x 256mb (for the upgrade). But I don't understand why the computer would not boot up when I put the originals back in.

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Not knowing what model of computer you are talking about, I'd suggest you try various combination's with your memory modules as some computers are picky and accept certain size memory chips in certain slots only.
Furthermore, it could be there is a bad connection on the sockets or if you have not been ESD safe, you could have zapped the memory chips and or the main board.

Posted on Jan 12, 2009

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IBM T23 wont turn on after adding new RAM


Hi - according to memory suppliers your T23 has the following memory capacity / requirements:

  • IBM ThinkPad T23 maximum RAM capacity: 1GB
  • Your IBM has Two (2) memory slots or sockets
  • Module upgrade PIN count is: 144-PIN
  • The memory speed is: SDRAM 133MHz, PC133
  • The laptop DIMM type for the ThinkPad T23 is: SODIMM, SO-DIMM, Small Outline DIMM
  • Non ECC

If you are meeting these requirements, you may have a defective module.

Also, according to Lenovo's page on the machine:

Memory
The system has 128MB or 256MB of memory standard and can be configured for up to 1GB of addressable memory. Memory options up to 512MB SDRAM SO DIMMs each can be added in the two available slots for memory expansion. The standard 128MB of memory is expandable up to 640MB and the 256MB of memory is expandable up to 768 MB of addressable memory with 64, 128, 256, or 512MB SO DIMMs without removing the 128MB SO DIMM that is standard in one of the internal slots for memory. For customers that need the maximum 1GB to which memory can be expanded, it is necessary to replace the 128MB or 256MB card with a 512MB card plus add another 512MB card in the extra slot. Only 133MHz DIMM memory can be used in this system. The use of 100MHz DIMM memory is not supported in the T23 systems.

This means yo can trouble shoot the 512MB modules individually by installing one of the original 128MB modules and one of the new 512MB modules (for a total system memory of 640MB). If it does not boot, try again with the other 512MB module. This will help you identify a defective module that may be preventing the machine from booting.

I hope this helps & good luck!

Sep 28, 2012 | IBM ThinkPad T23 Notebook

1 Answer

When i push the power button on my emachine the e screen flashes and it wont turn on what do i do to fix this?


If you just did a memory upgrade then the new chip is either not seated properly or the wrong type or even bad. Since it won't boot the problem is the ram in memory slot one. You need to rock it a bit to make sure it is seated before snapping it in. If it is the wrong speed or type you need to exchange it. It can also be bad but that usually means a counterfeit these days or you gave it a static shock and burned it out..

If you put your old ram back in you should be able to work again until you get the ram replaced.

Sep 02, 2011 | E-Machines 128mb memory upgrade for...

2 Answers

I have a Sony Vaio FX802 with 384 MB ram, split 1 x 256MB and 1 x 128MB across 2 banks. Last week I noticed that I was running on 256MB only so I re-seated the 128MB module and that seemed ok for a time,...


when adding new memory always take all memory out, reinsert the new 256mb stick into the first memory socket dimm1 normally, boot the laptop up, if the laptop boots then fine the memory module is ok, shut down and insert the original 256mb into the second slot, dimm2 then boot the laptop it should now boot normally, if not there maybe problems with the memory slot itself, give it blow to get rid of any dust and try again, if this dosent work post back.

Aug 20, 2010 | Sony VAIO FX150K Notebook

3 Answers

I am trying to install new RAM on my mother's Sony VAIO PCG-K25 laptop. It had two slots, each with 256MB sticks in them. I replaced these with 512MB sticks, and the computer wouldn't boot. It wouldn't...


make sure they are compatible with your computer, there are alot of electronic stores (circuit city) was the worst at it, but will sell you the wrong ones and say they are backwards compatible.. usually P4 2.8 can run PC2700, some run PC2100, which im hoping yours is PC2700... if so, make sure they are NON-ECC also... i would just get 2 1 gig PC2700 DDR 200pin sticks and stick em in... good luck

Nov 07, 2009 | Sony VAIO PCG-K25 Notebook

2 Answers

Sharp Actius AV18 does not recognize added 512MB PC2700 RAM. The machine still only sees 256MB. Is there something else I need to do?


I assume the laptop had originally 256Mb RAM and you put 512Mb RAM in a the spare memory slot and you expected to see 768Mb of memory, is this correct? Try removing the 256Mb memory module and insert the 512Mb memory module and see if the laptop boots up with 512Mb of RAM. If it doesn't boot up then the RAM is either incompatible or faulty. Try using RAM modules from the same manufacturer.

Jun 09, 2009 | Sharp Actius AV18 Notebook

2 Answers

The memory I install to Armada wont boot


You CAN NOT mix 100 and 133 chips! It is not good for the computer. They may let the computer work, but it won't recognize them properly.
If you still want to use the new chips, try and bypass the acklowledgment. Don't know if it is possible, but it may be the only way.
You should be using the correct chips.

You can go to: 4allmemory.com or cruicial.com to find out what sizes your computer is allowed.

Jun 01, 2009 | Compaq Armada E500 Notebook

3 Answers

I need to add extra memory now my lap top works with 128 MB i need to be 256 MB


thats no problem sir,u can upgrade the memory cards of the computer to the level which it supports may be 1gb,2gb or 4gb.....
u can purchase another memory stick of same specifications because its availiable is different size like 128Mb,256Mb,512Mb or 1Gb.....you can use any one according to your wish...

Apr 26, 2009 | Toshiba Tecra 8200 PIII-850MHz/ 256MB/...

1 Answer

Upgrade of Ram on Dell 8100


Hi,

There are 2 possibilities here - either the slot is not working or the RAM itself.

First install the working 128MB RAM in both memory slots one after the other and ensure that both the slots are in good shape.

Next, install the other 128MB RAM in one slot and check if this is working good.

Your laptop can support a maximum memory of 512MB. If you looking for an upgrade, please call Dell Support. Even though it's little expensive and shipping takes a week, you can get a free after sales service and peace of mind. Moreover you get proper guidance from the experts.

Jan 10, 2009 | PC Laptops

2 Answers

Tried to upgrade RAM now computer won't boot up


check ther is 4 ram bank and if then fix ram after left 1 bank.then check .
there is also check frequency same of both ram.

Jan 10, 2009 | PC Laptops

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