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start up problems

Posted by: mike b.      15 Dec 2011 @ 15:56
start up problems























Hello, I have a advent MT1500, the computer will not always start up first time.
thought it ay have been cmos battery related, so I fitted a new battery, which made no difference, apart from the fact it cannot find the wireless network now, but will go online using a cable.
once its up and running, it can work for hours.
but sometimes the mouse and keyboard freeze.
sometimes when i try to start the computer, the power light illuminates, the fans can be heard running at a fast speed, then after a few moments, the slow down.
I have no idea what I'm doing, I have read up on things, ie, cmos batteries, and the bios being used to start the computer, after that point I decided that I needed some advice.
thanks,
mike

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Reply by: Alan B. PCIQ IT ProfessionalIT Professional in Cambridge, CB22      15 Dec 2011 @ 16:51
RE: start up problems

My guess would be that your graphics chip has a tendency to overheat. This might cause the display to freeze (so the keyboard and mouse seem to stop working) or it might prevent the computer from starting (particularly after a restart when it is already running hot). I don't see that this problem has anything whatsoever to do with your CMOS battery. If you have not been messing with your BIOS settings they rarely give problems, and when they do not these problems.

If I'm right, the best you can do is to make sure your computer is on a flat surface to allow air to circulate.

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Reply by: Jon S. PCIQ IT ProfessionalIT Professional in Morecambe, LA3      15 Dec 2011 @ 20:06
RE: start up problems

certainly sounds like overheating
MAY be cureable by stripping the machine down, clearing the fans and airways of dust and dirt, adn using new thermal paste on the heat sinks

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Reply by: mike b.      15 Dec 2011 @ 21:40
RE: start up problems

thankyou for the replies alan and jon,and you are correct alan, it wont restart after it has been running. and jon was correct about it being full of dust/dirt. but I have already taken the side cover off the computer, and blew it out with a blower that i use to blow leaves around the garden.it was like a fog.
and I also still have the problem when i use the computer with the side cover off, and i can see both the cooling fans working. I dont know what thermal paste or heat sinks are.
when the computer is on the side desk I make sure all the vents are not restricted.
thanks mike























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Reply by: Jon S. PCIQ IT ProfessionalIT Professional in Morecambe, LA3      16 Dec 2011 @ 17:04
RE: start up problems

Mike

first can I ask you NOT to try and spam the forum by inserting links to Limewire and other file sharing sites? it doesn't fit with our site ethos

Next I'm confused
All the references I can find suggest the Dixons MT1500 model was badged as a Philips Freevent, not an Advent. Both are brands of Dixons/PC World, but are clearly different identities. I may be wrong, but a Google for Advent MT1500 comes up blank

Now to your problem
I think that machine should have onboard graphics, in which case making sure the cooling works may be a problem.
From previous work we've done on the Dixons MT1500 we think it PROBABLY has an ECS 945PL-M3 motherboard, with built-in Intel graphics
ECS have had a long standing problem with overheating of their motherboard northbridges (which include the graphics). Mainly because they stick a big heat sink on, but hold it on with double sided sticky tape which eventually goes bobbly and stops the heat transfer. Only fix it found is to cut the heat sink off the motherboard using fishing line under the heatsink to cut the tape. Clean the residual sticky stuff off using IPA solvent. Then apply a layer of heat transfer compund, leaving the corners of the northbridge clear. Then superglue the heat sink back on, putting the glue in the bare corners
Its worked for me many times, but I've had experience. Get it wrong and you'll trash the board

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Reply by: mike b.      16 Dec 2011 @ 19:11
RE: start up problems











jon,firstly you are correct, it is a freevents, I dont know where I got advent from, secondly ,I have no idea what links you are talking about, I dont use limewire, or any other music sites.
if you can tell me how to check for these links, or how to prevent them it would be appreciated.
I'm not a computer whizz, I'm trying to solve a problem.
and from what you have said, at the very worst , all i could do is ruin the motherboard.
the stuff I would need to try to repair it with, would it be avaiable loaclly ie maplins?.
the problem would the overheating also cause an intermitant fault, which is, when cold, i press the button to start the computer up, the light does'nt come on, but i can hear the fans working, so I turn it off using the button, unplug the mains lead, leave it 5-10 minutes, plug it back in, press the button,it lights up, i can hear the fans, and it starts up ok.
It appears thet as soon as I turn the computer on, the fans operate at a fast speed, then after a while seem to slow down, is this ok.
at the end of the day, I would like to fix it, and get to know how it works, everybody has to start somewhere. if I fry it, will it be worth getting a motherboard, or a new computer ?.
I fix cranes, concrete pumps etc, this is alien to me but it is also intresting.
thanks for the help. i appreciate it. mike













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Reply by: Jon S. PCIQ IT ProfessionalIT Professional in Morecambe, LA3      16 Dec 2011 @ 20:15
RE: start up problems

"he light does'nt come on, but i can hear the fans working, so I turn it off using the button, unplug the mains lead, leave it 5-10 minutes, plug it back in, press the button,it lights up, i can hear the fans, and it starts up ok. "

Thats a a failing motherboard
The capacitors which regulate the voltage of the power supply are failing.. They COULD be snipped off and replaced by someone with a good soldering technique, but its not worth it
New motherboard required




As to the comment about the spam, every one of your posts has a corrupted weblink at the foot - go back and check what you've posted

if you are not putting those in yourself, then it suggests your computer has been hacked

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Reply by: mike b.      16 Dec 2011 @ 20:39
RE: start up problems


thankyou for your advice jon, yes I did notice after my last post the links on the bottom of my posts, and I did'nt put them there,maybe my daughter has used limewire in the past.
but i do scan for viruses and spyware ,also have registry scanned often too.

I now know what the northbridge is,where it is and its purpose, also the southbridge, cpu and ram.
thankyou for your time and patience.
would I need to get the exact same motherboard, or is there a better/improved motherboard I can purchase.

much appreciated.
mike

and no doubt the link will appear again.






















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Reply by: Jon S. PCIQ IT ProfessionalIT Professional in Morecambe, LA3      16 Dec 2011 @ 20:59
RE: start up problems

you are unlikely to be able to buy that board now, there are very few Socket 775 boards still on sale. Basically - assuming I have identified it correctly - any current Socket 775 board with an Intel Chipset should work. However you'll probably have to buy new DDR3 memory as well as few current boards use DDR2
For instance Scan have a number of socket 775 boards - http://www.scan.co.uk/shop/computer-hardware/all/motherboards-intel/357/574


just to make sure I've got it right - this is the board I THINK you have in that machine now
http://www.ecs.com.tw/ECSWebSite/Product/Product_Detail.aspx?CategoryID=1&DetailID=582&DetailName=Feature&MenuID=24&LanID=0
Check it and make sure
Note that ECS boards tend not to be long-lived

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