open CPU surgery

DannyinJapan

DannyinJapan

Joined
Oct 9, 2003
Messages
5,594
I am going to attempt to replace my motherboard today.
If you guys dont hear from me for more than one day, assume I screwed up big time and I may not be able to get back online for an indefinite period.
Wish me luck.
over and out
-Sky Captain
 
Good luck Danny,

if i don't hear from ya, I'll send off two ronin to get ya.
 
Been there, done that a few times now. Two words (or is it three?): anti-static strips. And lots of light!

Norm
 
well, I did it, but the damned thing just didnt want to do anything but spin fans.
I think my power supply (300W) is too small for this overclocked mega board.
Whadyall think ?
 
Danny, unless you are using power eating things like multiple disc arrays and power burning stations for DVD, 300 wat is probably enough for anything.

It depends on processor, AMD´s eat bit more than Intel crap, but
I m running AMD, 2 burners, 2 discs, big graphics card, multiple fans and never had a problem with 300W.

Jaroslav
 
If you have a high quality 300 W power supply (like an Antec) it would be sufficent. If all you have is the generic kind that came free as part of a new computer, it may not be. The wattage rating isn't all that matters.

There also could be other problems, having bad memory will prevent everything from starting up. What exactly is going wrong?
 
Well, its all set up, but when i turn it on, only the fans come on. the hdd is not revving up.
only the cpu fan comes on.
I have a 5 yr old generic 300 W poersupply and im trying to run a 3.6 ghz overclocked motherboard with 1 gig ram, dvd-rw, cd, floppy, 80 gb hdd, 256 mb video card, etc...
 
try disconnecting all your peripherals, drives, anything in the expansion slots, etc. till all you have connected is keyboard & video, try booting it up, you may need to setup bios entries before it recognizes everything else. cjheck MB manual to make sure the jumper settings, if any are set for correct memory & cpu clock speeds, buss speed, etc. if ok & you get to the 'boot device not found', put stuff back in one at a time till it screws up, then backtrack & figure out why. (after connecting HDD's & CD's rerun bios setup to ensure it recognises the drives) cable alignment (make sure red ground wire on drive cables is at pin 0 on connector, etc) some cables can be put in one end backwards...make sure memory is well seated & the retaining arms have clicked into place. make sure all cables are in all the way & no pins are bent. make sure all cards are fully seated & not cocked at an angle.

if nothing seems to be working, does it beep? initial beeping is diagnostic, number of beeps is a code as to failure & may be in board manual. make sure cpu was inserted correctly (usually a corner is cut, or a corner pin missing which matches the board socket,check pins are not bent) make sure heat sink & fan are secure & heat transfer goop is used between cpu & sink. make sure the cables from the case for reset, speaker, hdd lites, etc are on per MB manual.


anyhow, good luck!

if in doubt, hit it with an 18" AK a few times (see satori video re laptop repairs by kukhri)
 
ill give it a try, but the motherboard and memory were installed, tested and burned in for me by the dealer.
Im afraid to take it apart too much.
im in japan, and the power here is 90 V
so, im using an adapter and i figure i might be on the low end of the power scale already.....
 
Power = voltage times current, so it should not matter that you need an adapter to get from 90V. You just have a slightly larger current. People can build tesla coils running at 100000 V without blowing out the power plant, it's just real low current.

Also, make sure that the motherboard circuitry isn't touching the case somehow, I think mine had little insulating disks that went between the screws and the motherboard.

A bit of warning if you take the heat sink off, the Intel CPUs use (or used to use) a pad between the heat sink and CPU which melts when the CPU powers up. So if you separate the CPU from the heatsink, you have to scrape everything off and re-apply a new pad or equivalent (the goop).
 
I disassembled and tried to boot from nothing but the video card and the keyboard and still nothing.
even the keyboard lights didnt come on.
they might have, but if they did they were very very dim.
I think its the power supply...
 
if its a newer mobo it will have two power connectors on it. One 20 or 24 pin main connector and one 4 pin (square configuration) 12v connector. The second one was added because of the increased power requirements of the P4 chips. The 4 plug is usually located near the processor and heat sink on most mobo layouts...

do you have both plugged in? If you have a real old power supply unit (PSU) then it may not even have the 4 plug connector on it.

300w is on the low end of the scale for a p4. especially one in a system with periphials like a 256meg graphics card. Additionally, a vid card like that MAY need its own on board power as well. I know that some of them take a connector direct from the psu.

If you do decide to get a more powerful powersupply my suggestion would be to spend the extra coin and get something from a company like enermax or pc power & cooling (generally considered the absolute best). They will have things like dual 12v rails that can make all the difference in a high power consumption system.

Additionally, generic power supply units usually will see major (>5%) powr fluctuations that can decrease the life of your system or otherwise cause problems.


I've known lots of people to build a bada$$ top of the line computer system and outfit it wit ha $40 psu from their local chain computer retailer. Don't be tempted Danny! A top of the line psu is well worth the $100+ you would spend on it.

good luck to you, I hope it all gets working quick!

I would still be in the IT field if my patience for troubleshooting wasn't outmatched by my desire to destroy (preferrably with a large knife) anything that doesn't function as it is expected!
 
One of our machines at work did the same thing. 20 bux will buy you that information. :rolleyes: :D







The motherboard had an extra set of jumpers for a power switch. Once these two pins were connected the machine ran fine. Check the motherboard's manual for the same thing. Might help, might not. :confused:
 
BruiseLeee said:
One of our machines at work did the same thing. 20 bux will buy you that information.
Click to expand...
watcha gonna do with all them antlers? the bucks will probably trample you anyhow. look what they did to santa.

Linky thingy


p.s for danny, take a look at the rating on the transformer/adapter you are using, must be more than 300 watts output.....(input would be even more as they are not 100% efficient)

have you checked the voltage setting switch on the back of the power supply, may have been knocked into 220 V. & if you are trying to feed it 90-120 v. it will be upset (if you do it the other way round, feed it 220 when set to 120v. , you need to buy a new power supply)
 
Damn! I wish I knew even a third of what some of you guys have forgotten about computers!!!! :eek: :rolleyes: :cool: :D ;)

I've thought about going out to our local Jr College and taking some computer courses but never have. I'd sure like to be able to edit my registry and other cool stuff like that.
I'm halfway tempted to buy the Registry Mechanic program software as the short free copy I downloaded says I have nearly 200 out of sort things on my unit. The few it does fix for free does help now and then, makes me wonder what a full tuneup would do fer my unit.:D
 
f its a newer mobo it will have two power connectors on it. One 20 or 24 pin main connector and one 4 pin (square configuration) 12v connector. The second one was added because of the increased power requirements of the P4 chips. The 4 plug is usually located near the processor and heat sink on most mobo layouts...
Click to expand...

BINGOOO!!!


My old PS has no 4 pin connector for this motherboard, I didnt know it needed two power cords anyway.
Thanks everybody.
Now, we have to get a power supply and we know the reason why. Its going to run or die.
 
If you've got the money, get a power supply larger than what you need. Peripherals and CPU's draw more juice every year and your power supply cannot be too large.

It can, however, be too small - a lesson that cost me a mobo and CPU (not to mention the PS itself) a few years back.
 
Yvsa, please start your Registry Mechanic program, go to 'Help' tab on the top row of the program and select 'about' (probably near the bottom of that column). Please post the exact version number as written there :D

_________________
...Apocalypse meow
 
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