Question about Toshiba Satellite P25 Notebook

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POWER after start, the central fun stasrts few times the other 2 then it goes off I try to plug out the ram the video chip and hard disk same problem I have other 2 laptops with same problem The problem starts when the PC was on for few hours and with hot weather. I'm sorry for my english I hope you can undestand it Ciao, Giulio.

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Do you mean the internal fan goes on then the PC goes off? You might have "burnt out" the power supply. You mention hot weather and if the PC got hot enough it could have ruined the power supply just enough that it wont be able to keep the proper voltage needed so it shuts off. Be careful not to let it "crash" allot as this may cause a hard drive failure. Try swapping out the power supply, or if you are confident in electrical components, open up the power supply and look for signs of slightly burnt capacitors. Be careful though! If you don't have much experience with these types of components, as you can sustain serious injury or death from a shock~

Posted on Jul 24, 2009

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U cant fix that yourself

Posted on Jul 24, 2009

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I have a Gateway 310 XL H desk top PC. After the storm, Isaac, It won't power on. The red and green lights come on, the red goes off after a short time. The monitor flashes a manfacture logo then


The system is powered up if green light on, the hard disk is powered up if red-light on for a few seconds then goes off, but I assume it's not loading up after that. You have no output to video.

Try holding f2 or f4 to load default bios when turning on. If that doesnt work then That would point to me that there is a problem with either:

1) processor burnt out, or needs refitting following a knock to the case causing a bad connection.

2) ram burnt out or not correctly installed. Try refitting the ram or using a different combination of ram.

3. Bios chip burnt out. Sometimes you can literally see the chip is slightly melted.

4. Other motherboard fault, look for melted chip or damaged component.

5. Psu faulty or not connected properly. Check connections, or bench test with another psu.

Have you moved the pc recently? Sometimes dust builds up under processor or along ram, and when moving pc giving it a slight knock can cause bad connection. If dusty, remove clean and re install.

Hope it helps.

Sep 05, 2012 | Gateway 310 S PC Desktop

2 Answers

When i turn the computer on it beeps 4 times and repeats this, nothing comes up on the screen.


one of the periferals is defective (RAM, PCI card, video, CD or Hard Drive, etc...) remove everything that you can leaving just the board, CPU, one stick of RAM and power supply, than boot if all goes well, shutt down than re-plugg one thing at a time, than re-boot, start with the RAM modules (one stick of RAM at a time as well) to see which device is causing the failliure... if it is not booting on the first try, switch RAM modules by starting with only one RAM stick at a time...

Cheers!

Sep 18, 2011 | Dell Inspiron 537 ST PC Desktop

5 Answers

What is the use of RAM?


The ram is basically the speed memory, any programs open are saved to the ram while in use, the more ram the more things can run. Hope this helps :)

Jun 06, 2011 | ASUS Eee PC 1005HA-PU1X-BK Netbook

3 Answers

I have a problem with my m/b k7som+ 7.5c. When I press the pwr button everything seems ok, all fans are working properly and I also hear the HDD spinning sound. However there is no POST beep or anything...


Hello,

There are a few procedures you can possibly try before replacing components.

I HIGHLY recommend you unplug power while trying these steps

1) Unplug power and remove CMOS battery (usually a small silver circular battery) on motherboard for 1 minuted then reinstall battery and see if it boots up.

2) Re-seat all RAM memory chips. If it doesn't help, then try booting the system 1 memory chip at a time, to rule out a bad stick of RAM

3) If you have a separate video card (not onboard video) then try re-seating it

4) unplug both data and power cables to all internal components (hard drives, CD-Roms, Floppies, etc) and also internal cards and see if it boots. If it does then reconnect one device at a time til you find the culprit


That's pretty much all you can do without swapping out parts.

I hope this help and I wish you luck!!

Regards

Mar 07, 2011 | EliteGroup V7.5A (K7SOM+ V7.5A)...

1 Answer

840GM will not start up all the way


Here is my flow chart.
So basically you cannot get the pc to POST. Meaning you have just a black screen when you power on the pc, right?

First off, did you attempt to update BIOS before this happened. 90% of the time this is caused by a corrupt bios.

If you are the victim of a bad BIOS flash, don't freak there are some options. First off, if the computer (or motherboard) is still under warranty the Computer (or motherboard) can be sent to the Vendor for a BIOS reprogramming.
If you are a DIY PC builder and the warranty is expired you can take out the bios chip and sent it someone who reprograms BIOS chips or you can buy a brand new chip form them. I will show you my people.

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or

http://stores.shop.ebay.com/Bios-Depot__W0QQ_armrsZ1

For non-BIOS issues:

If you did not try to update BIOS before the problem started then try these troubleshooting steps.

1. Full power down. Unplug the power cord from the Power supply. Then hold down the pc power button (this discharges any residual power in the capacitors).

2. Open the case and reseat the graphics card, hard drive, and RAM.

3. Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots. Try one stick at a time to see if you can get the PC to boot. If this works, then the remaining ram sticks are damaged.

4. Set the Cmos jumper to clear. Power up the pc. Power down the PC. Set the Cmos jumper back to normal position, power up the PC.

5. Unplug and replug all the power supply cables.

6. Check the powersupply function. Either by a powersupply voltage checker (20-25 dollars at local PC shop), get the supply tested at a PC shop (usually a free service), put the powersupply in a different pc, or try a different powersupply in the problem computer.

If the Powersupply checks out ok, then you will have to do a process of elimination to find out what part or parts are the culprit of the No-Boot.

Start by pulling all the ram sticks if you have not already. This is the easiest components to check and usually a culprit.

Take out one of the RAM sticks if there is 2 or more. Swap the RAM sticks in different RAM slots. Try one stick at a time to see if you can get the PC to boot. If this works, then the remaining ram sticks are damaged.

If it is not the RAM, you have to continue removing items such as sound cards, un-plugging hard drives and optical drives, other PCI cards. Do this one at a time until you find the culprit. If a POST screen, meaning you can see Anything from the PC brand name to Motherboard brand name appearing on the screen.

Jul 08, 2009 | Gateway 840GM (RB840GM) PC Desktop

1 Answer

7720 will not boot


off course it is repairable dont worry look try to install OS thru the following procedure to factory default state

Acer: When you first turn on the laptop and see the Acer logo screen, hold the ALT key and press the F10 key (you need to do this before the Acer logo disappears).

if it installs the OS ok then fine if not

pls consider changing RAM take out from beneath the laptop open the cover all screws and take out the L shaped panel then u will see the RAM in front with 2 chips one uper and one lower side try to take out both and then re fit only one in the upper slot and then try to install if hangs again , then try the 2nd chip in the first slot and repeat the procedure if it works ok only try both chips one by one if it resolves ur issue and u find the faulty one replace it with new one with sam specs

in the last case if ur system still hangs then my friend ur hard disk is giving u hard time it needs replacement

when a system boots after bios loading all that is trf from Hdisk to RAM and then OS is loaded if one have problem system will hang or freeze try these solutions and then tell me the results

pls go step by step

and pls rate me fixya if i fixed ur problem

kindly let me know abt it and tell me in detail the messages u get and the system behaviour

Jan 30, 2009 | Acer Aspire 7720 Notebook PC

3 Answers

My computer is not turning on properly!


You mentioned the fan coming on and the drives making a few sounds and you also mentioned a floppy drive, a CDRom Drive and a DVD drive but you did not say whether or not the computer has a processor or hard drive with an installed operatings system.

If it does have a hard disk w/installed operating system and it does have a processor installed on the mother board, there are a couple of simple things you might want to check. They are simple but sometimes the simplest of things can create major problems.

1. Check to see if the hard drive's power cable is connected. If it is, unplug it from the drive and then plug it back in.

2. Check the hard drive's data cable. Is it attached to both the hard drive and the motherboard. If so, unplug it at both ends then plug it back in.

3. With only 128 meg of RAM, in a normal configuration it will have either one 128 meg chip or two 64 meg chips. Either way, remove the RAM chip(s). If it has only one chip, simply remove it and then plug it back in. If it has two chips, you probably should remove both chips and then reinstall them one at a time and try booting the computer with each stick individually. One word of caution however - if you are new to computers, you want to be very carefull not to let the RAM chip(s) get damaged by static electricity. Turn the computer off but leave it plugged in. Before attempting to remove the RAM chip(s), touch a bare spot somewhere on the case to discharge any built up static electricity from your body.

If you are still having problems after performing the above checks, there are several other things that could be wrong with the computer. The hard drive could be bad, the motherboard could be bad, the power supply could be weak or bad - or any of a number of other components could be bad. If that is the case and the computer is very old, you will probably be better off just junking it and picking up another one.

Hope that helps - Graye

Nov 08, 2008 | Microsoft Office Professional 2007 Full...

1 Answer

Video memory


1) On board video devices often use main system RAM,
by remapping it into their own address space.

This is designed to be CHEAP not GOOD.

Any RAM used by the video controller is NOT available to
to Windows, thus reducing system performance.

2) Sacrificing system RAM for video is a bad idea, the
system needs it more. Extra RAM in video controllers
is used mostly for 3-D effects and gaming, because
most video systems already have plenty of RAM for
implementing colors screen resolution.

On board video controllers are never fast or exotic enough
to benefit from the extra RAM anyway.

The rest of the system (i.e. Windows) on the other hand
can put any extra RAM to a far better use, by reducing
the need to store transient data on disk.

Don't forget that a hard disk is 10,000,000 times slower than
physical RAM, and when Windows starts running out of
physical RAM, it starts swapping data to disk (thrashing).

The performance penalty is not subtle !!!! Operations that
took a few seconds can take hours and even days.

3) It may be possible to change the balance between
system RAM and VIDEO RAM in the BIOS.
This depends on the motherboard.

4) If you want to drastically improve performance, do
buy a separate video card, for example an ATI Radeon
Saphire and disable the onboard video.

You must make sure the video card will fit in your
motherboard. Depending on the boards age, it
can use one of several types of I/O slots:

Vesa
PCI
AGP 2x
AGP 4x/ 8x
PCI Express

etc...

The card must match the slot.

5) The suggestion that adding a separate video card would
somehow slow down your computer is absolute non-sense.

Tell the guy to read some books, take a few classes, and
keep his opinions to himself until he knows something.

Internal video cards (on-board) have limited capabilities,
and steal system resources. Add-on cards are designed
for performance, by adding resources and off-loading
graphics related computation from the main CPU,
allowing it to do 0ther things.

6) Finally, using the hard-drive to supplement video RAM
is impossible. The hard disk is way too slow. It would be
like hitching a snail in front of your Porche. Perhaps
even a little worse.

Video RAM needs to be extremely fast, even faster than
system RAM. It is often organized using ultra-wide buses
with interleaved addressing for maximum speed. Also,
for this reason, good video RAM is not cheap. A good
Video CARD will have between 256 to 512 MB of fast RAM.

If you run Windows XP, your system should have at between
1024 to 2048 MBytes of system physical RAM.

Less RAM will make your system drastically slower when
doing things like video and image processing.

For VISTA, two gigs is the absolute minimum.


Disk are used for storing lots of data at a slow speed,
and retaining it with the power OFF.

Hard disks can store about 1,000 times as much as
physical RAM, but the access time is up to 10 million
times slower:

RAM can be accessed in 1 nanosecond.
DISK takes 10 milliseconds.

Hope this answers your question
Please rate my answers.

Martin

Jul 04, 2008 | VIA Computers & Internet

1 Answer

No Lights On But Fans On


I would start by using only 1 stick of RAM this sounds like symptom of a failing ram card or occasionally ram socket. The RAM is on the bottom of the laptop under the middle panel.

If you have 2 chips try each chip individually in each socket.

If it was turning itself off it was probably overheating - i see the fans gets clogged on this series all the time. You may want to blow it out with a can of compressed air.

Let us know if you need more help.

Oct 11, 2007 | HP Business Notebook NX9110 Notebook

1 Answer

Main board wont Power up


Hello.. i didn't quite understand if the problem occured after you changed the HDD and then became permanent. However the possible reasons are the same in any cases. Please note that a laptop mainboard can power on even without hard disks, ram , video card even without it's processor. That's because the motherboard itself "scans" for them AFTER it has been powered and the BIOS loaded (yep you can't start without BIOS)during POST (power on self test). If your motherboard can't power on now try the following. Remove the hard disk and the ram memory and try to power on. Of course expect beeps and errors from the BIOS, but if the mainboard powers and some LED's flash or do something, it isn't the motherboard who is faulty. Insert RAM and repeat the test. If it still works, then the hard disk you've installed is not compatible. IF however after removing both RAM and hardisk and the mainboard still doesn't power,surelly there is a problem in the DC charge/power on circuitry, that requires a specialised service to fix it. Hope this will be usefull and good luck.

Jan 20, 2007 | Packard Bell Easy One Silver 2101 Notebook

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