Question about Toshiba P000223320 - System Board, FVRSY5 (P000223320R) Motherboard

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Toshiba 490xcdt okay, got this off ebay...humm!! brought brand new power supply, left it plugged in, a battery light was on. after two hours pressed the on button and nothing....all lights off ....absoluting zip. any ideas? power cord thing still has the green light so thats not damaged... bad fuse? do laptops even have a fuse - where do i find it to replace on!?? any help would be really kind. thanks rob.

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Are you sure you used the charger with the exact specifications?

I once encountered a problem like this... try removing the battery and replacing it after some 5-10 minutes. It worked for me.
If it doesn't, try whether it would work only on main AC with no battery inside what-so-ever. Then - try with it.

Oh, and no, laptops - to my knowledge - do not have fuses... at least those 4-5 I opened didn't.

Hope this helps. I'll post up if anything else comes to mind...

.:: Cyberneticus ::.

Posted on Feb 17, 2008

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Show all solution to d945plrn motherboard problem not powering up


PSU IS OK? You're sure? You tested the 3 main voltages coming out?

DON'T rely on; "The LED lights are on, and the fans spin, so therefore the PSU must be good.

1) If ALL the LED lights were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor uses 51 to 125 Watts of power.

With a Power Supply that has a weak voltage power rail, you will see LED's light, and fans spin; BUT not enough power to turn the Processor on.

Power Supply also needs to be plugged into motherboard to test, because you need a Load on the Power Supply.

PSU is KNOWN to be good? I mean KNOWN.
Not, "It's brand new so I know it has to be good"
Okay, moving on.

CPU OK?
How did you test it? Install on another working motherboard?

Are the Electrolytic Capacitors on the motherboard good?

http://capacitorlab.com/visible-failures/index.htm

http://www.youtube.com/watch?v=Lut7MX5Dd_A

Capacitors on the motherboard are used as Filters, and Voltage Regulators.
The ones used as Voltage Regulators are in the Motherboard Voltage Regulator Circuit,

http://www.hardwaresecrets.com/article/616

Part of what the Motherboard Voltage Regulator Circuit does, is to regulate voltage for the Processor. (CPU)

The CPU MUST have a steady, 'clean', supply of voltage, and it MUST be kept within the Processor's voltage tolerance range.
Too much, or too little, and the CPU shuts off. BIOS turns it off.

(CPU stands for Central Processing Unit. Another term used is Microprocessor, or simply Processor for short.
I know you are aware, just posting for all those who read the solution in the future)

http://downloadmirror.intel.com/15140/eng/D945PLRN_ProductGuide02_English.pdf

[Better motherboard due to the Intel Q965 motherboard chipset,

http://www.ebay.com/itm/INTEL-DQ965GF-CORE-2-DUO-LGA775-SOCKET-P-4-MOTHERBOARD-I-O-FACEPLATE-INCLUDED-/290863623024?_trksid=p2047675.m1850&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D11%26meid%3D5685984037376928917%26pid%3D100011%26prg%3D1005%26rk%3D1%26sd%3D330632928551%26

http://en.wikipedia.org/wiki/List_of_intel_chipsets#Core_2_chipsets

Scroll down to Q965 in left column ]

For additional questions please post in a Comment.

Regards,
joecoolvette

Feb 18, 2013 | Intel D945PLRN Motherboard

2 Answers

I have an rdx 200 motherboard brand new but I cant load anything not even bios 4 diagnositc lights show up.


try a new power supply first. There is a light on the board that comes on when the power supply is plugged in.

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1 Answer

HP dv2000 fails when power supply connected


Please visit http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01087277&lc=en&cc=us and follow the steps. Contact HP and see if you model is on the affected list, as it could be eligible for a free motherboard replacement to resolve the defective video card issue. If they say no, check out www.hplies.com for other useful information regarding this Globally known issue with nVidia and HP.

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2 Answers

Power suppy fried, now new power supply will not power up


a 450 watt power supply will have the extra pins your talking about if this is a newer pc if not you will have to buy older used one on ebay or something to get what you need

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try to jump green and any black wire from the power supply...if the fan dont work..power supply is damage..need to change..

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There are a host of things that could cause this. The first thing to check is to mak sure you have the proper memory setup for your motherboard. Often these days you need to install memory in pairs for the board to boot. Refer to your motherboard manual and make sure the memory you have installed is right fro your board and that you have it installed in the right slots. If you do and it still doesn't work, please reply with your motherboard, CPU and memory specifications so I can look into this further.

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1 Answer

Toshiba a100 not starting on


Try removing the battery, and AC power, and pressing the power button down for about 15-20 seconds, and then try powering on the computer with just the AC power plugged in (no battery installed). If this works then the battery may be shot, and would need to be replaced (if you can find a suitable replacement). If it doesn't, then I would advise bringing the unit to an authorized service center to have the AC Adapter tested with a voltmeter (unless you happen to have one). The power adapter should give off a voltage of approximately 19V. If it's not, then you may simply have to replace the power adapter, either with one specifically for your model of laptop, or with a Universal AC Adapter (and you will probably need a rating of at least 75W, 90W would be optimal). If the power adapter tests okay though, then it most likely is the power coupling (the hole where your adapter plugs into. Repairs to those can usually range anywhere between $150-$300 USD for parts and labour). Hope this gives you enough information to work with, and hopefully gets your issue resolved!

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1 Answer

Packard Bell 4451 lap top will not power up.


check the back of the power connector to see if it is loose. I have known alot of situations were, if not carefully removed, that power connector in the can free itself from the sodder on the Mother board therefore you wont be able to charge the battery nor boot up. hope that helps

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