Acer Aspire 7520 Laptop

[psapugkid]

Anyone know where the BIOS eeprom chip is located on the Motherboard 'ICY70' for a Aspire 7520 laptop.

Need to replace it.

Thanks

Happy New Year all

[opsmonkey]

i dont know mate, but i do know you can download the manual for just over a ?5ver.. ($10) from this place..

Acer - products new home - (http://www.justmanuals.com/acer-travelmate-7520-7520g-7220-series-aspire-7420-7120-series-parts-service-guide-p-35761.html)

[fifii69]

here is free manual 2shared - download SG_AS7520_7220_BOOK.pdf (http://www.2shared.com/file/3858491/5acb234b/SG_AS7520_7220_BOOK.html)

usually BIOS eeprom chip is located nearly battery 3v on motherboard

[psapugkid]

Thanks Guys,

I've already have the manuals, all they show is the Motherboard from both sides but do not identify the BIOS Chip.

[johnny-b]

Hi,

dont know what problem you have but i think i have the same.

While flashing the bios the program get stuck and hanged for more then 2 hours and then the power was lost.

Now my aspire 7520 wont startup anymore only the powerled is on and if i push the button on the cdplayer it opens and close.

During startup are no postmsg or beeps and only a blackscreen, there is not any light in it.

If you want to discuss further pls reply and maybe we can help us together.

John

[psapugkid]

Hi

My problem is, mine has a black screen with no post or anything from start-up. It goes through a looping sequence of turning on and off every few secs and can only be stopped by removing the power source.

Cannot use any form of recovery process as everything is dead via USB or DVD drive, only when I do a FN/ESC and power on, does the fan run for as long as you leave it, hrs/days and again remove power source to stop it.

Removed the CMOS battery and stripped the Mother board from its chassis. Did as what is known as a remelt of all the various chips and connector joints on the board.

After reassembly it worked fine, till I tried to do a bios update via USB Floppy drive which did work for a few seconds, and now back to square one.

If maybe the BIOS chip is naff or it maybe a duff CPU which I am waiting for a replacement to try.

I can get a replacement BIOS chip, but where the hell is it on the board, I've asked this everywhere and no one knows. I know its a 8pin chip and there are quite a few on the board.

This looping problem seems to be a common issue with Acer Laptops, Acer don't accept this and if you send your Laptop to them they will not repair the fault, only change the board and charge you big bucks for it.

If you search the web there are various sites/forums with others with the same problem.

This why I'm asking where is the bios chip as it maybe dead, causing my problem.

Thanks

[johnny-b]

Hi,

thanks for your msg on the board.

Understand that your problem is maybe different then mine.

Did you also find this link How to fix a corrupted Phoenix BIOS using the Crisis Recovery Disk (http://web.telia.com/~u43311424/crisis-recovery-disk/)

There is some explaination of reflashing by usd fdd, on my machine it looks like it is working, it read the disk and the presentation of led's when startingup is different, however it is not working for me untill now.

If you finally found a fix pls mail me on john.bakker.50@gmail.com

Goodluck,

John

[johnny-b]

Hi psapugkid,

i found the location and you can also.

when the keyboard is removed you see right above the left uppercorner of you touchpad a hole in the case and you also see the flatcable of the touchpad.
On nthe leftside of the cable you see 3 8 pin chips and on the middle of mine there is a sticker that says cwi50 v1.09

If you google on that you found out that this is the bios chip.

Goodluck with it,

John

[psapugkid]

I've had a look in the area you mention, if I'm correct.

I can see 3 chips but no label and difficult to read.

http://i603.photobucket.com/albums/tt112/telephotoboy/Bios.jpg

Is it the centre of the 3 chips ?


This image is from the PDF manual I have, but in detail it looks different.??

http://i603.photobucket.com/albums/tt112/telephotoboy/aspire7520Vista-ICY70MoBo.jpg

thanks

[imi2003]

hi there,
i had the same looping boot problem, and black screen, with this model of laptop. the fix is similar to the RROD fix for the xbox 360 you need to take the motherboard out. (dont loose any little screws)
and heat the nvidia chipset chip up with a heat gun. i used my dads black and decker paint stripper on medium setting for about 30 - 45 secs.
you might want to cover all the little plastic connectors on the board with somthing or they with melt and deform like on mine.
my laptop works perfect now.
it is a problem with the nvidia 7000m chip. i suggest you get it working and be shot of the laptop. because it will only keep happening as the chip gets too hot and de-solders it self from the motherboard.

[Melosi]

http://members.home.nl/mr-lee/Aspire%207520G.jpg
Is this what you looking for ?

[falcons]

imi2003 is bang on,the motherboards in aspire 7520 mostley all suffer with same fault,i kept mine going heating up m/board with tiny heat blower but eventually died,bad manufacturing fault.