My computer was working fine; then one day...Bamm; it keeps freezing up on me....I can't always boot up when I want to. When I do boot up and it's working, everything is fine, then I click on something and she freezes up. I used my original disc to put a whole new XP operation system on it....I cleaned off the heat sink.....I've run the Toshiba diagnostics program and everything passes....then Bamm, she freezes up.
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Re: My Toshiba Satellite M45-169 keeps freezing
1. The battery on the motherboard has died. Replace battery. 2. The BIOS is corrupt, reflash BIOS.
Most likely #1, very rarely #2. Pop out the battery on the motherboard and replace it, after the first time you boot up your computer, go into BIOS and set everything the way it should be for your computer (usually just time and date) and then after each sequential time you reboot, that should take care of your problem.
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When a Power Supply is plugged into power, there is a constant 5 Volts present. The 5 Volt Standby Power.
You press the Power On button. This in turn presses against the Power On switch, located inside it's plastic assembly.
The Power On switch is a Momentary Contact Switch. Temporary closing it activates the Soft Power On circuit. A 5 Volt circuit that utilizes the 5 Volt Standby Power.
The Soft Power On circuit 'excites' the Power Supply, and turns it on. (Sounds like a seedy novel)
The first chipset (Integrated Circuit) to receive power is the BIOS chipset. The Basic Input/Output System program is initialized.
BIOS looks to see what devices are connected, does a Ram Memory count, turns the Processor on, and hands the computer over to the Operating System.
A checksum is computed as an error-detecting code, to protect the BIOS settings stored in CMOS. Each time the computer is turned on, this number is re-computed; and checked against stored values.
If they do not match an error message is generated, to tell you the CMOS memory contents may have been corrupted; and therefore some settings may be wrong. Your BIOS assumed the settings were incorrect, and loaded BIOS default settings; stored in BIOS.
(Default = factory settings)
CMOS Checksum Error Defaults - Loaded
New battery? Nope didn't help. Clear CMOS, and password reset? Nope didn't help.
Leaves Virus as the problem, or hardware component/s on motherboard; are bad.
My thoughts? Bad motherboard.
("BAD motherboard. NO,...........you know you have been bad,....don't give me that look. You're a bad motherboard."
That's my diagnosis.
(Unless you put the CMOS battery in upside down. + goes UP)
CMOS checksum errors Explanation: A checksum is computed as an error-detecting code, to protect the BIOS settings stored in the CMOS memory. Each time the system is booted this number is recomputed and checked against the stored value. If they do not match, an error message is generated to tell you that the CMOS memory contents may have been corrupted and therefore some settings may be wrong. BIOSes react in different ways to encountering this sort of error. Some will warn the user and then continue on with whatever settings were in the CMOS. Others will assume that the settings that were in the CMOS were corrupted and will load default values stored in the BIOS chip "for safety reasons". The error message will indicate which your system is doing. Diagnosis: The most common cause of checksum errors in CMOS is a battery that is losing power. Viruses can also affect CMOS settings, and motherboard problems can also affect the stored values. Recommendation:Follow the instructions in this section to address the CMOS corruption. You should make sure that all of the BIOS settings in the system are correct, by rebooting the system, going into BIOS setup and double-checking all the values (hopefully against a recent BIOS settings backup).
The Toshiba Satellite A210 computer is a piece of ****. I have only had my computer for 2 years and I am having the same problem. Everyplace that I have taken it to says that the problem is the CMOS battery. The CMOS battery is dead and needs to be replaced. That is why you cannot get through the boot process. Nothing is wrong with the hardrive, motherboard etc. All you need is a new CMOS battery. But guess what? When Toshiba manufactured the product, they welded the CMOS battery to the motherboard. So to replace the CMOS battery, you need to buy a new motherboard. Does this make any sense to you? All batteries eventually die and will need to be replaced. Why would any manufacturer in their right mind weld down a battery? Toshiba is trying to say that it is normal to design a computer this way. But in fact, it is not. HP's CMOS battery is located outside the motherboard and can actually be replaced by he average Joe lay person. And if you start comparing the design of other brands of computers to Toshiba's you will see that is not the case. The design of the Toshiba Satellite A210 is seriously flawed. It is the equivalent of designing a camera (before the days of digital) and gluing the film inside it. As soon as the exposures on that film runs out, you have no choice but to buy a new computer. And that is what has happened here. If I were you, I would get on Toshiba’s case day and night. What they have done, in my opinion, is misrepresentation and fraud.The have created, marketed and sold a disposable computer as a top quality product. But they forget to disclose one important fact about what they sold. That is disposable and because of its design, the lifespan of the product is dependent on the lifespan of the battery.I am currently arguing with Toshiba to try to get them to take ownership of this situation and fix my computer. Get on their case cause what they have done is not right.