ok first is the list of items i bought to basically re-build my computer.
-Ultra 128MB PC2100 DDR 266MHz Memory

-Masscool / Socket 478 / Intel Pentium 4 up to 2.8 GHz / Ball Bearing / CPU Cooling Fan

-PCChips M963GV SiS Socket 478 MicroATX Motheboard and an Intel Celeron D 345 3.06GHz OEM Processor

-DiabloTek / APower / 420-Watt / Micro-ATX / Dual 60mm Fans / SATA-Ready / Power Supply

Ok so my hard drive is fine, worked on my other computer. I install all the parts :placed the cpu in, apply the thermal grease, placed & secured heat sink, secured mobo in case, attached all peripherals (hard drive, cd-rom, floopy disk,etc), attached power supply to mother board. Then I prayed XD

Ok well it is what i feared.....the computer did not turn on. The fans didn't even move. Did I miss something? I know i have because their is a cord hanging from the front of the case that was connecting to the old mobo but i cant find where to put it on the new one..Is the power supply too low? because nothing moved. It's set on 115V which is the US standard? Then again when i plugged it in, nothing moved.

I am new, actually this is my first time putting a computer together. Please help me!

there are lots of things it could be.
Including, are the wires from the power switch on front of pc case connected to correct two pins on the motherboard?
does the motherboard have a 4 pin square power socket near to the CPU or graphics car slot? , if so do you have the relevant square 4 pin plug from power supply inserted in that socket?.
Is the CMOS battery clear jumper in the correct position. PC chips motherboards often ship with the jumper in the clear position and need it moving to the other position.
There are other things it could be but these are three common errors.

by the way, if you have XP on the hard disc it will almost definitely need reinstalling-this however wont stop the computer swicthing on and putting an image on the moniotr

See the thread right below this one.

Assuming you connected everything properly, and that you installed the type of ram you bought in the proper slots depending on whether it is single channel ram or dual channel ram that must be installed in certain slots in matched pairs (see your mboard manual), a common mistake people make these days, especially with DDR ram, is to buy ram that is not compatible with their mboard - in the worst cases your mboard will not even boot with the incompatible modules installed.

Remove the power to your case/power supply.
Remove the ram.
Connect the power, the keyboard if it is not already connected, boot up.
If there is nothing else wrong, and whatever is applicable - a case speaker, or onboard speaker, or sometimes an amplified speaker set is connected to the sound out port on the onboard sound and turned on - you will hear error beeps that indicate no ram is installed.
E.g. if you have an Award bios, it may beep one second on, one second off, one second on, etc. continuously.

If you do get those beeps, the ram you bought is incompatible with this mboard (or it is in the wrong slots).
See response 5 in this for more info about ram compatibilty, and places where you can find out what will work in your mboard for sure:
http://www.computing.net/hardware/w...

I checked out the Ultra web site.
www.ultraproducts.com
There is nothing there that can check out whether the ram will work for sure on your mboard model. There is a configurator for power supplies, but not for memory.
Therefore, you are taking a gamble the ram you buy may not work in your mboard if you buy Ultra ram.

Thanks for the help so far. Ok well it seems like I have done something wrong. But when i attach the keyboard to the computer and switch the power supply on, the lights blink for a sec then turn off. Does that mean my motherboard is getting power?

I switched the CMOS jumper to normal. still no turn on.

Also tried the benchtest, it says to touch some pins...on my motherboard I don't know where I could touch it so it could go on. The spot where my case power button must attach to the motherboard does not match. Need new case then?

As far as the memory thing...I won't know until I can see something my computer move. I know power is turning on but don't know why it wont start up.

Oh maybe if someone wants to look at the motherboard pics.
http://www.globalcomputer.com/appli...

Maybe someone can run me through the steps again I guess and point out on the pic where each thing goes It would be awesome.

"But when i attach the keyboard to the computer and switch the power supply on, the lights blink for a sec then turn off. Does that mean my motherboard is getting power?"

Yes, if the power supply is fine. It doesn't necessarily mean it will boot fully.
Depending on the mboard and possibly bios settings, some mboards will briefly start up whenever you turn on the power to the power supply, then shut down again.

"The spot where my case power button must attach to the motherboard does not match. Need new case then?"

The power switch pins on the mboard are always two pins beside each other, but where they are on the mboard and on a mboard header (male connector) varies.

"....their is a cord hanging from the front of the case that was connecting to the old mobo but i cant find where to put it on the new one."

If you are trying to install this mboard in the emachines case listed in your first post, or another case that had a brand name system in it, that case often has a one piece female wiring connector from the front panel for the the power switch/reset switch (if it even has a reset switch)/power led/hdd led/possibly the case speaker/possibly a sleep led. The chances of the one piece connector wiring matching the pinouts of your new mboard are possible but quite unlikely.

If you are installing this mboard in the emachines case........

eMachines T1090 - has the Trigem Cognac+ mboard

The emachines case has a one piece connector from the front panel - which wires to what on which pins page 57 of this pdf.
You may also have the case in this manual, or not.
http://www.emachine-upgraders.info/...

or - header pinouts page 15 of this pdf
http://www.emachine-upgraders.info/...
...

PCChips M963GV SiS Socket 478 MicroATX

Two mboard versions - 3.3 and 5.0 - the manual for 5.0 is the same as for 3.3.
The bioses for the two versions are NOT the same.
Printed on the mboard somewhere, is the mboard Version or Revision number - e.g. V or Ver 3.3 or V or Ver 5.0, or R or Rev 3.3, or R or Rev 5.0. You MUST determine which mboard version you have if you ever need to flash the bios.
Manual for both and support for version 3.3 here:
http://www.pcchips.com.tw/PCCWeb/Do...
Support for version 5.0 here:
http://www.pcchips.com.tw/PCCWeb/Do...

The manual is also on the CD that came with your mboard. If you need to be able to look at the manual but you do not have a second computer at where your dead computer is, on someone elses computer go online and look at the manual at the link above , or look at the manual on the CD that came with the mboard, and print the essential pages about connections.
You may have also gotten a quick install printed document with the mboard that tells you how to connect the basic stuff to the mboard that has the following info about your front panel header in it.

page 16 of the pdf manual

ATX1 - you MUST connect to that from the power supply as well as the main power connector

SW1 - 10 position header, two rows, pin 10 is missing
corner of the mboard near the two yellow fan connector header shrouds

pin 1 is marked 1 on the mboard - pins in that row are 1,3,5,7,9
the other row - 2 beside 1, 4,6,8, pin 10 is missing

1+, 3 - hdd led (hdd activity, or hdd act) - + to positive side of led
5, 7 - reset switch
9 - reserved, do not use
2+, 4 - power/sleep led - + to positive side of led
6, 8 - power switch

If you get the wire polarity to the leds backwards they won't light up (the HDD one only lights when the HD is doing something). Just connect them the opposite way and they will light up.

page 17 of the pdf

SPK1 header - in the same area on the mboard
- the four position female connector with wires only on the ends from the case goes on that. It doesn't really matter which way.

......

page 18 - pinouts for the USB headers

If you get another case, if it has wiring to front USB ports on the case, a standard pair of 4 in a row or 5 in a row with 5 wires female connectors from the usb ports will work on 1,3,5,7 or 1,3,5,7,9 respectively, or 2,4,6,8 or 2,4,6,8. 10 respectively - 1 and 2 being the +5 volt, often a red wire from the case.
If you get a two or four port USB port wiring adapter that has the ports on a plate that installs at the end of a slot, the same applies.

If the USB wiring to two ports has a single connector, it must be wired the same as the headers - and with +5 volts at 1 and 2.

If the USB wiring to the ports has individual connectors on each wire, or individual connectors on the +5 and ground wires and dual connectors for Data + and -, that will work too.

NOTE - the wiring connector for the single USB port on your emachines casem, if you have that, cannot be used with this mboard header.
pinouts in blue page 14 of this pdf
http://www.emachine-upgraders.info/...
....

So.........
- If you are using the case for the emachines T1090, you will need to either obtain connectors and/or wiring, e.g. from an unused old case, and connect them to the existing wiring using the above info, or get a new or used generic case with standard wiring connectors,
but NOTE that this PCChips mboard requires a 2 position power led wiring connector, not the three position one with wires only on the ends most older cases have.
e.g. you can use any two position wiring connector such as that for the sleep led or sleep switch on a newer case, and chop off the 3 position wiring connector for the power led and connect its two wires to the 2 position connector instead.

- smaller local places that build computer systems or that sell used pieces often have used generic cases, or new generic cases with no power supply you can buy cheap, but try to get one with the two position connector for the power led. The plate - I/O shield - that often comes with a new mboard - through which the ports built into your mboard stick through must be compatible with what is on your mboard - either you must be able to stick the removable I/O shield that came with the mboard in the new case, or the holes in the case must be suitable if the I/O shield area in the new case is not removable.

- for the time being, to see if the mboard will start up, you could install the end of the one piece connector from the case with two wires beside each other on the end to pins 6 and 8 on SW1 on the PCChips mboard and use the power switch on the case, or briefly short the two pins 6 and 8 on SW1 together.

If that doesn't work something else is wrong - try removing the ram and seeing if you get beeps in that case, as in response 3. However, you must connect a speaker to the PCChips mboard header to hear the beeps.
I do not see a header for the speaker in either manual for the T1090 / Cognac+ mboard - it may be onboard the Cognac+ mboard, in which case the emachines case may have no case speaker.
Any 4 ohm speaker connected to the two end pins will do.
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yea i see where your going. I know exactly what to do. Emachines = sucks! I was trying to avoid buying a case but I guess i will have to. You guys are great, thanks a bunch. If i knew you in real life i would pay you. thank you again.

It isn't just emachines. Lots of brand name system builders use a one piece connector for the front panel. In this case I was able to find the pinouts, at least. Sometimes the mboards are made for the system builders OEM only and have oddball front panel headers on the mboard that are difficult or impossible to find the pinouts for - in those cases you sometimes have no choice but to trace the wires to the front panel and figure out what they're for.
emachines biggest problem seems to be the power supplies they install in their systems are more likely than average to fail, and when they do, they often damage and kill something else, often the mboard, so just replacing the power supply is not enough in more than the average number of cases.