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Mulig og redde hovedkort med feilflashing av bios?


CFD

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Har et Soltek DRV5 (kt333) som en jeg kjenner flashet med feil bios. Nå har han problemet at det ikke kommer bilde på skjermen. Ingenting skjer i det hele tatt. Datamaskinen starter og viftene surrer ,men det kommer ikke noe bilde på skjermen.

 

Hvordan kan man få det gamle hovedkortet til og virke igjen?

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Videoannonse
Annonse

Eller så kan du se om det er noen skoler etc. som har en EPROM-brenner liggende du kan få låne litt. F.eks om det er en datahøgskole eller noe i nærheten av der du bor.

 

(NB: dette er forrutsatt at bios-chipen på det hovedkortet er av en typen som kan programmeres med en slik brenner)

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Kortet det er snakk om er over 1 år og dermed er garantitiden gått ut.

Det med EProm programerer er noe jeg skal forhøre meg om. Men hvilke programerere er det som vil virke?

 

Den vi har på skolen, Høgskolen i Østfold burde kunne flashe/brenne/programmere en sånn avlang bios-chip (de som er sterkt rektangulære, et par cm lange og med bein ut på "langsidene". Ofte kalt "Tusenbein"). Det skulle da bare være å laste ned riktig bios og be brenneren om å skrive ut den bios-fila. Tar bare noen få strakser og så er det gjort.

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Hvis du har to like hovedkort kan du gjøre dette:

-Ta ut bios-chipen som funker og putt den inn i hovedkortet som er defekt.

-Nå skal hovedkortet boote opp.

-Ta ut bios-chipen igjen (med stømmen på. Det er ikke støm i biosen når hovedkortet har startet)

-Sett inn den defekte bios-chipen og prøv og flash på ny.

 

Dette virker! men du trenger to like hovedkort som sakt.

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Kortet det er snakk om er over 1 år og dermed er garantitiden gått ut.

Det med EProm programerer er noe jeg skal forhøre meg om. Men hvilke programerere er det som vil virke?

Er nok 2 års garanti på produkter i Norge da. Men garantien dekker så absolutt ikke at brukeren oppdaterer hovedkortet med feil bios.

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Har du flasha ein bios, så gjeld ingen garantiar. Dette er brukaren sitt problem, eller verkstaden som har gjort det.

 

Skal du flashe biosen, så er det viktig Å VITE KVA DU GJER....

 

Ellers er det minst arbeiskrevande, penge besparande.... og sikkert enklast å kjøpe nytt hovedkort (evt. med ram og prosessor)

 

 

Eit hovedkort kostar ikkje så mykje.....???

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I'm posting this because I think everyone needs to be a bit more aware

that a so called "bad flash" does no necessarily mean a trashed BIOS

chip or a hosed motherboard. I'm sure the more experienced computer

builders are aware of this....so this post is aimed at the less

computer savvy or the people that just plain didn't know.

YES, flashing your BIOS is risky....it can go bad for any number of

reasons.

NO, you shouldn't flash unless the new version includes something that

is truly needed.

But if you just have to have the newest software,drivers,BIOS as soon

as its released, and I'm included, then you need to know that there is

a good chance that an "OHH SHIT" situation can turn into a "WHEWWW"

AWARD BIOS' are "bootblock" BIOS'...basically what this means is that

there is a portion of the BIOS that is reserved and unwritten to (most

of the time) that allows rudamentary hardware accessability(eg.floppy,

ISA, Keyboard) in the event that the BIOS becomes corrupted in some

way as to prevent the system from POSTing normally.

First off, if you think the flash went bad, try clearing the CMOS. I

know this sounds generic, but it is sometimes all that is needed as

the flash may have wreaked havoc upon the settings as to not allow the

system to POST...and not actually corrupted the BIOS itself.

Sometimes, if your lucky, holdind down the INSERT key while powering

up the system will get it to POST normally as it resets certain

settings to default. I actually saw someone mention this in a

thread...good job...not alot of people are aware of this ability to

"force" the system to POST. If these fail, your looking at a true "bad

flash" scenario.

As I said before, the "bootblock" allows access to to floppy, ISA, and

keyboard input. If your lucky enough to have a board with an ISA slot

(doubtful) and an old ISA vid card laying around, the recovery process

is easy, as you will be able to see what your doing on the screen. I

don't think any of SOYO's current boards have an ISA slot so it is

more of a challenge as everything has to be automated and done blind.

Let me say this. If you get ANY beep codes at startup and the floppy

light comes on and appears to initialize, your chances of recovering

are VERY high, regardless of whether or not the system appears to do

anything else. If you don't have a floppy...well...send the BIOS chip

off to get reprogrammed, or buy a new one...because there is nothing

you can do.

OBVIOUSLY YOU NEED ACCESS TO ANOTHER COMPUTER FOR THESE NEXT STEPS

BECAUSE YOURS IS OUT TO LUNCH RIGHT NOW

1.) You need to make a bootable floppy. The best way to do this is to

go to www.bootdisk.com and download DrDOS...but you want the one "for

flashing" as it has no drivers or any unesessary files with it. It's

just "pure" DOS. Just click on the downloaded file and it will prompt

you to place a floppy in the drive and will create the boot floppy for

you.

2.) Place "awdflash.exe" and whatever BIOS your flashing (ex.

123abc.bin) on the bootable floppy you created.

3.) Now you need to create an autoexec.bat file. This is what

automates the entire process since it's being done "blind". To do

this, all you need is a text editor, notepad being the easiest. Just

open notepad and type "awdflash 123abc.bin /py /sn /Sb /cd /cp /cc /R"

without the quotes. Make sure you fill in the "123abc.bin" with the

correct filename...this is just an example. It should look like this:

awdflash 123abc.bin /py /sn /Sb /cd /cp /cc /R

Make sure there is a space between awdflash and you BIOS file and

after your BIOS file and between all switches. Now save what you

created here in notepad on your floppy as autoexec.bat

Basically what this does is it automatically loads awdflash, inserts

the BIOS file, and....

/py - program yes

/sn - save no

/Sb - skips rewriting the bootblock

/cd /cp /cc - resets all configuration data and clears CMOS

/R - restarts the system when complete

4.) Once you have this floppy complete it's time to put it in the

drive, power the system up, and cross your fingers. Just keep your

eyes on the floppy and HDD light and keep an ear out. It only takes a

minutes or so to complete so you have to be ready to remove the floppy

when the system restarts (you should be able to tell when all

lights and activity stop, pause for a few moments and then restarts).

At this point, if all went well, your system should POST. You can now

go into your setup, make your needed changes, and bingo...your back in

business.

WELL...thats pretty much it. I hope this helps some people. This isn't

100% quaranteed to work. Some "bad flashes" just can't be recovered

from, but it has worked for me in the past.

Good Luck,

Cappy

JUST A FEW NOTES:

NO...I don't work for SOYO, but I figured this info might save some

people some headaches....and money. I think this info might be on

their site, with less detail and minus some of "awdflash's" switches

that really should be included.

Also, even if you don't have to use this proceedure, If your going to

flash your BIOS, it's good to make this floppy anyway...just in case.

And finally, this is only for AWARD BIOS'. AMI BIOS' use a different

recovery proceedure.....It's WAY easier.

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