[Okta Webinar] Learn how to a build a cloud-first strategyRegister Now

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 1863
  • Last Modified:

No power with a new emachines!!!

I have an emachine T4742 that lost power. it was taken to PC Club and told the woman that owns the system that it was the motherboard and not the power supply.  She got a new motherboard and it still does not work. I have tried new motherboard new power supply, different CPU and MEM Even a different switch. With the new motherboard, i get no power at all, with the old motherboard, I get SOME power but NO switch works. Also the power just comes on intermitanly with the old motherboard. I dont have ANY thing pluged into it, not HDD Floppy, CDROM just CPU, MEM, power CPU fan. again with the OLD MB I get POWER sometimes, but no video. Please help, its a personal busuness computer and time is critical. Thank you
 
0
jmo7014
Asked:
jmo7014
  • 7
  • 4
  • 2
  • +4
6 Solutions
 
CallandorCommented:
It is always possible that the new motherboard is faulty - it's not the first time that has happened.  To be sure, take a power supply that is at least as powerful from another machine that you know is working and try it with the new motherboard, outside the case (it may be shorting on the case).
0
 
jmo7014Author Commented:
I did that, I put both boards outside the case, and they are both 250w PS.
0
 
CallandorCommented:
Did you try a different video card?  If so, since you tried it with different memory, different cpu, and the old motherboard behaves better than this one, I suspect the new motherboard doesn't work.  Before returning it, try resetting the BIOS.
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 
jmo7014Author Commented:
I have a new working video carn in ther right now no deal. BIOS reset also not working.
0
 
CallandorCommented:
Well, it looks like a bad motherboard, then.
0
 
jmo7014Author Commented:
Is there a trick to turning on a simple motherboard, cause i have ANOTHER emachine board that I know work that is a different board, but i can't get that onw to start ether?  
0
 
jdietrichCommented:
Maybe something simple?  Is the connection from the case to the mobo on correctly, you'll get no power without it?  Also, what kind of CPU?  Do you have to connect 2 power connectors to it like some processors need?  Looks like you were pretty thorough, just looking for something slight that might have been missed.
0
 
jmo7014Author Commented:
Its a p4 2.7. BOTH connectors are connected. I just think it wird 3 different MB, all emachines are not working. 1 of witch i KNOW works.
0
 
willcompCommented:
Have you tried booting up with motherboad removed from case and placed on cardboard?
0
 
jmo7014Author Commented:
Yes I have, its an ESP plastic mat.
0
 
jmo7014Author Commented:
Give me some emails, ill send some pics of what im working with here
0
 
CallandorCommented:
We can't solve problems with email on this site - post it on a free photo site.  If it doesn't work with a known working motherboard, either the power supply is no good, or we are missing a connector somewhere.  The P4 4-wire connector is attached to the motherboard, right?  You've removed any extraneous variables, like hard drives?
0
 
knoxzooCommented:
It's almost certain to be the motherboard.  I went through the same thing a few months back with a customer computer.  eMachines had sent a faulty replacement board.  And, a few months before that.  And, a few month before that.  Their quality control explains why they're the cheapest machines in the business.  Do the customer a favor and get a real board to slap in the system.  

And, btw, a lot of the eMachine boards won't work outside a case.  They actually use the ground points on the board (screw holes) as part of the ground for the system.
0
 
NerdxCommented:
I've searched for an emachine T4742 and it doesn't exist? Are you sure you have typed the correct version properly? Also, what country are you from?

# Nerd
0
 
callrsCommented:
If it was the power supply to begin with, and you used that at first to test the new mb...say goodbye to your new board!

So try new ps + new mb combo. Don't test a new mb with a ps from a failed system! Good power supply is critical.

And not a cheap $15 ps - spend at least $30 for one. (see my post at  http://www.experts-exchange.com/Hardware/Q_21856241.html)
0
 
NerdxCommented:
I've read somewhere that most emachine computers require a new power supply straight out of the box and, unfortunately, yours is one of them I guess. I'd recommend what callrs has told you to do, buy a new power supply first and replace it.

I also have an emachines computer, although it's slightly older (emachines 3220), but it worked fine and STILL DOES!

Hope this helps - Sorry!

# Nerd
0
 
jmo7014Author Commented:
Sorry to say i could not figure it out.  I spent so much time trying to fix that system that I dident think in reverse. I had different parts I.E. CPU's, memory, PS ect. I never thought to put these parts into another system to see if they worked except for the PS. " LAME A** TECH" I know. My bad. However I am from the US, Los Angeles and I think the system was a T2742. thank you for all your help.
0
 
willcompCommented:
You're welcome.
0

Featured Post

New Tabletop Appliances Blow Competitors Away!

WatchGuard’s new T15, T35 and T55 tabletop UTMs provide the highest-performing security inspection in their class, allowing users at small offices, home offices and distributed enterprises to experience blazing-fast Internet speeds without sacrificing enterprise-grade security.

  • 7
  • 4
  • 2
  • +4
Tackle projects and never again get stuck behind a technical roadblock.
Join Now