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ATTEMPTING TO UPGRADE THE 256MB RAM ON MY EMACHINE 540 I PURCHASED A NEW PC133 256MB RAM.AFTER INSTALLING IT THE MACHINE STILL WORKED OK BUT STILL ONLY HAD 256MB RAM NOT 512MB. BOTH OLD & NEW CHIPS WORK WHEN SLOTTED INDIVIDUALLY INTO EITHER AVAILABLE SLOT.ALSO ALL COMBINATIONS USING BOTH CHIPS ALLOW THE MACHINE TO WORK BUT STIIL ONLY 256MB.CAN YOU SUGGEST WHAT STEPS ARE AVAILABLE TO NOW PLEASE. THANKS

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Bro, kindly specify your OS and what type is it? Is it 32 or 64. The type will determine the amount of RAM it will only read.

Posted on Nov 06, 2008

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3 Answers

I need to know how much ram my motherboard will be able to run without burning up? I have an Emachines t1090 w/ Windows XP, 900MHz Intel Celeron Processor, 128MB SDRAM, CD-ROM 48x Max. CD-Drive, 20GB Hard...


The max for your system is 512MB. You have two memory slots and one has a 128MB chip so if you want 512MB, you need two 256MB chips and throw away the 128MB.
At Newegg, a 256MB chip is $42+ shipping of $1. I'd consider getting a new computer instead.
I don't think memory upgrade will tax your system cooling.

Sep 09, 2010 | E-Machines T1090 PC Desktop

1 Answer

I have an emachine T5026. Emachine tech swears this machine only supports pc2700 ram but the stickers on the factory installed ram says pc3200 256mb x 2 so i bought 2 memory masters pc3200 1gb x 2 sticks....


PC3200 is backwards compatible with PC2700. Meaning you can install PC3200 into your motherboard but it won't run any faster than would PC2700, however it will not cause any harm and should work fine.

Emachine's would say you need PC2700 most likely because they're trying to sell you some.

One of your new memory modules or the memory slots on your computer may be defective. I recommend installing a single stick of memory and booting your system. If it is successful then shut it down, disconnect the power and install another stick. Boot again and keep doing so and by process of elimination identify the bad memory stick or the bad memory slot.

This is the "likely" cause and isn't too uncommon.

Good luck.

Sep 07, 2010 | E-Machines eMachines Desktop PC

1 Answer

Installing a 512mb PC133 memory module in a t1090 emachine. The pc wont recognize the module and wont boot nor go into post. Switching back to the original two 128mb modules and the pc works normal. Is...


Hi there
Your t1090 will only accept a maximum chip size of 256Mb and so it will not accept the added the 512mb chip as it cannot handle it. 512 is the maximum size of RAM for this machine but unfortunately you cant put it in in one go

Jul 03, 2010 | E-Machines T1090 PC Desktop

3 Answers

My dot station has PC100 64mb RAM. Will it Support PC133 256mb RAM


hi normally if your system came with 100mhz ram that is all it will take as this has been specifically designed for that mhz of ram so i do not think that the 133mhz ram will work, all tho it is cheap enough to buy now, it might be worth giving it a try you will not damage anything doing so, but i think you will find that it will not work....hope this helps

Feb 22, 2010 | Intel Dot Station (INTC300AIO) PC Desktop

5 Answers

Tried to upgrade ram with 2 new pc133 sticks of 256mb ea. Didn't work. What's wrong? Are there switches on the motherboard I need to change? Or something else?


No there are no DIP switches to change, or jumpers to move on your motherboard, in regards to your BIOS recognizing ram memory installed.
(BIOS. Basic Input/Output System. This tiny program, {64MB in size usually}, that is burned into your BIOS chipset, is what recognizes ram memory on your computer)

Things to know about the older Sdram ram memory.
1.It's really SDR Sdram. Single Data Rate Synchronous Dynamic Random Access Memory.
DDR is Double Data Rate Sdram, DDR2 is Double Data Rate 2 Sdram, and so on.

Point? All ram from SDR to DDR3, IS Sdram.

2.Standards have been set by JEDEC for computer ram memory starting from DDR Sdram on up. This standards were not implemented back in the day of SDR Sdram.

Point? Ram memory manufacturers didn't all follow the same standard, and ram memory made for one computer, would Not work in another computer.
This means you need THE ram memory for YOUR eMachines computer.

Main factors when buying SDR Sdram,
A.Correct type. You know this. SDR Sdram.
168 gold plated contact pins on the bottom of the ram 'stick'. (82 on each side)

B.Correct 'Speed'. ('Speed' is slang for Frequency Rate) You know this. SDR Sdram that operates at a frequency rate of 133MHz. (Or also known as PC133)

C.It must be low density Non-ECC ram memory. It cannot be high density ECC. (Error Control Correcting. Used for Server computers mostly)

D.Correct CAS Latency. Also known as Ram Timings. 3-3-3-3-2 would be normal for SDR Sdram.

E.Correct Chip Configuration. How the DRAM chips are accessed. DRAM chips are the black rectangular chips on each side of your ram memory 'stick'. Also what size the DRAM chips are in MegaBytes. (MB)

F.What the Maximum TOTAL Amount is for the motherboard. Is it 256MB? 512MB? Or more?

G.What the Maximum Amount is for EACH ram 'slot'. (Correct speak for 'Slot' is Bank)

H.Do you have four ram 'slots'? You MUST have a ram stick in Slot 1. This is the slot closest to the processor. It is the first ram slot the processor 'reads'.

Jul 12, 2009 | E-Machines eMachines Desktop PC

3 Answers

How do I upgrade memory on a t1100 emachine from 256mb


Your emachines eMachines T1100 only supports modules made with a specific type of chip. Should you find what seems to be the exact same memory elsewhere for a lower price, it is very possible that the cheaper memory will not work in your computer. From what I see you should use straight PC-133 Try a site like Kahlon.com-they make sure it works with your computer as would kingston or corsair...
Your maximum amount of ram is only 256mb total.
hope this helps...good luck- please leave a rating...thank you kindly

Apr 26, 2009 | E-Machines T1100 PC Desktop

2 Answers

Ram upgrade


you need to make sure the ram is compatable, it looks like an old machine so chances are its using sdram pc100,
check the ram your trying to make sure its not pc133. let me know what each piece of ram has on its sticker

Mar 23, 2009 | Dell OptiPlex GX200 PC Desktop

1 Answer

Memory upgrade


First step : Make sure the memory you purchased meets the following specifications

"168pin PC133 SDRAM DIMM" which should be easily accessible from wherever you bought it.

If not, then you can find memory here. that the company guarentee's will work with your system. Also - You want to make sure the memory that was in your system to begin with is identical to the memory you are sticking in it to get it to 512MB Systems that are this old with "PC133 SDRAM" are very picky about what kind of ram you stick in them. Make sure wherever you purchase your memory from, has a guarentee that it will work in the make/model of your computer.

Mar 14, 2009 | Compaq Presario 5000 PC Desktop

1 Answer

RAM upgrade presario 7594


How many memory did you install ? You should insert the memory to the primary slot. You shoould remove the old one and replace it by a new one.

May this site will help you: http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph03886&lc=en&cc=us&dlc=en&product=94524&lang=en#N822

thank you . Please leave comment b4 u rate, thanks, melnavz

Jan 30, 2008 | Compaq Presario 7594 PC Desktop

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