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Guest tvone2

Acer Aspire 5520-7416 MXM II 8600GT?

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Guest tvone2

Hello,

I installed an ASUS 8600gt in my 5520 just now..

I get the error:

MXM structure not found or invalid.

Reflash MXM rom or add MXM structure ans associated callbacks to SBIOS!

Post halted performance limited until resolved...

I can not start the O/S..

I can now see 512mb of video ram.. (not 128 from the 8400m)

The 8400 cooler fits the new card better!!! It was made for this application no dought.

I am on the search for a fix...

Anyone have any advice for me???

Thanks in advance,

Tony

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muppet

No flies on you! I still haven't got a reply from the numerous emails to supposed Acer parts suppliers...

I recall a post that noted a number of reboots were required before an mxm upgrade worked - sounds a bit "stand on one foot whilst rebooting" but might be worth a try.

A few questions:

Can you access the bios menu?

Does the POST halt - or does Vista start loading then fail?

In the 5920g posts, people had expectations that they might need to flash the vbios with 5920g 8600m card's vbios (vbios was available online from memory - I'll see if I can dredge the link up). However if you can't compete POST, pretty hard to flash from your machine...

An alternative route - if a willing C90s owner has their ears on, maybe they would be willing to flash the card for you with the Acer 8600m BIOS.

Edited by muppet

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tvone2

The unit tries to load vista, so I am assuming I can flash the "ACER 8600m gt 512mb bios" I just found..

Yes. Bios now reads 512 in the memory area (not 128 anymore!)

Will try this tomorrow after work..

Thanks for your reply..and help..

Edited by tvone2

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reiluke

i hope you find a solution

nvidia mxm software spec

explains mxm structure

let us know after you update bios

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tvone2

:) no good on the flash...

used Nvflash v5.57

Adapter Geforce 8600m GT (10DE,0407,1025,0126) H:NRM B:02,PCI,D:00,F:00

warning: firmware image pci subsystem id (1025.0121)

does not match adapter pci subsystem id (1025.0126)

warning firmware image board id (8412) does not match adapter board id (8419)

error: pci subsystem id mismatch

the original info from the new (Asus) card

version 60.84.65.00.a1

I tried two different bios.. one 8600gt 070423 and one 8600gs 070711..

same result.

I am in over my head here forward.

Tony

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muppet

Hey Tony,

Probably *not* the best option to allow nvflash to ignore these differences using overridesub in this case.

Looking at

http://forums.laptopvideo2go.com/index....art=#entry37918

they suggest that these id's might need to be changed in the vbios file before you flash it to the device. I believe that the IDs you listed can be changed in the vbios file using the tool "NiBiTor" - in the "Adv. Info" tab under ver 3.7 of the tool (btw you might need to change from the default *.rom to *.bin when opening the file).

Before flashing I suggest making a backup of the vbios already on the card - however I guess it goes without saying that you could well brick the card at this point and leave it unusable anyhow... :)

Good luck

Edited by muppet

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tvone2

:)

I did overides!!!!

nvflash -4 -5 -6

Done deal!

Running benches now!!!! w/ 169.09

aquamark on 8400m=26965......8600GT=65653!!!!!!!!!! o my god!!! UNREAL!

Thanks for your help!!!

Thanks to this site and ICE TEA

I can not believe it!!!!

Too F%$$ easy!

Cheap....$139

Edited by tvone2

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muppet
:)

I did overides!!!!

Done deal

Running benches now!!!! w/ 169.09

Thanks for you help!!!

I can not belive it!!!!

Too F%$$ easy!

Cheap....$139

W00T!

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reiluke

Wow! what bios did you flash it with and where did you get them

:)

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tvone2

I found them @ techpowerup

Acer 8600m GT

not positive on version... 070423 ?

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muppet
I found them @ techpowerup

Acer 8600m GT

not positive on version... 070423 ?

Yep that's the 512MB one they have.

:) I'm obviously not going the original Acer path now - but the Acer SKUs I found that were likely candidates (turning up with 4520g and 5920g references in various places) are VG.8PG06.001 or VG.8PG06.002. I found the later SKU on a picture of a 5920g opened up on a Russian site (http://www.ferra.ru/online/mobilis/s27047/page-3/). The vbios probably comes from the VG.8PG06.001 version...

Edited by muppet

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tvone2

Now do you get the DDR3 card??

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Guest Guest

So does this mean that the VBIOS of future mxm cards need to be flashed before it can be used? Strange, I thought that MXM cards need not to be flashed...

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Guest Shamtu
So does this mean that the VBIOS of future mxm cards need to be flashed before it can be used? Strange, I thought that MXM cards need not to be flashed...

It depends on vendors card. If you want to put Asus 8600m gt to Acer you have to flash with Acer 8600m GT vbios

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tvone2

Acer Aspire 5520 5716

I just noticed the wrong model number in my post!!!!

SORRY!

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Guest Guest
It depends on vendors card. If you want to put Asus 8600m gt to Acer you have to flash with Acer 8600m GT vbios

If this is so, If Acer has not published that specific card, then it'd be impossible to use the card from another vendor then? Or is there a way to edit the vbios?

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Guest Shamtu
If this is so, If Acer has not published that specific card, then it'd be impossible to use the card from another vendor then? Or is there a way to edit the vbios?

Ask tvone2 he made it:) Or look few posts up :)

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Guest chomycz

hello,

i have a c90 asus 8600M gt but i can't do what you perfectly do. so if i send you my card coum you flash it with acer bios ?

I will take all the cost and we can arrange for somenthinf for like computer hards part (like 4GB hdsc sd card

?) or other. please tell me that is possible because my son will be defintively happy if he can play to cod4 in decent condition and take his father not like Omer simpson..

michel :)

Hello,

I installed an ASUS 8600gt in my 5520 just now..

I get the error:

MXM structure not found or invalid.

Reflash MXM rom or add MXM structure ans associated callbacks to SBIOS!

Post halted performance limited until resolved...

I can not start the O/S..

I can now see 512mb of video ram.. (not 128 from the 8400m)

The 8400 cooler fits the new card better!!! It was made for this application no dought.

I am on the search for a fix...

Anyone have any advice for me???

Thanks in advance,

Tony

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reiluke

i have not tried it but i think he did it this way

1. download hp boot key and create a bootable usb

2. download nvflash

3. download 8600M GT bios

4. extract nvflash to root drive of flash drive, copy also the bios in the root drive

5. restart pc and in bios set flash drive as boot drive (F12 key usually)

6. on command prompt type "nvflash -b backup.rom', now you have a backup bios file named backup.rom

7. on command prompt type "nvflash Acer.8600MGT.512.070423.bin -4 -5 -6", wait for it dont touch nothin till it finishes up

good luck

*

nvflash -p -u -f backup.rom'

-4 = bypass board id mismatch (I think)

-5 = bypass device id mismatch

-6 = bypass subsystem id mismatch

8600M GT bios

http://www.techpowerup.com/vgabios/1742/Ac...512.070423.html

hp boot key

http://h20000.www2.hp.com/bizsupport/TechS...TX-UNITY-I23839

nvflash

http://www.softpedia.com/get/Tweak/Video-Tweak/nVFlash.shtml

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Guest chomycz

Hello,

but as you can't imagine i 'm not like you i can only use one finger of my left hand sine 5 years after being involved in motorbike carsh... so now you can understand what is the matter... I can ask to my son (9 years) to unscrew some thinks but not to realise all the operation and that why i hope find somebody to make it for me! So, many thanks for your help but all i need it's a true help with physical help to change the (flash) asus c90 card to acer.

Michel

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tvone2

Hello,

reiluke sums it up for sure...

You Need more help other than the flash...

It takes some skill to swap the card..(not brain surgery)

I would be willing to help you any way possible..NO PROMISES!

what card are you looking to replace???

Tony

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Guest chomycz

Hello,

First of all, thank you for your attention because it's very hard to find somebody with positive mind about my specificate situation...

So, the video card is a HD 2300 apparently it's a mxm II like the asus c90 8600 m gt that i have bought on ebay. the notebook is a acer 5720 and what we want do with my son it's swap the hd 2300 by the 8600m gt. But if i can make unscrew/screw by somebody it's very very hard to make the complete operation. So i ask if i send you the card if you are ok (with gift in order to pay your time) to falsh it in acer mode (bios). Now, if you don't want there is no matter i will understand but you will lose a terrible figther under COD4 !!! :)

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tvone2

OK..

I am an honest and easy going person.

I like to help people..It makes me feel good!

I will do what ever I can to help you..

please send me an Email

We can discuss this further..

Tony

Edited by tvone2

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A Civilized Man

On your thread in the notebookreview forum you said you had to find 4 different screws to bolt the cooler on i was wondering what type of screws did you use and whare did you get them? :)

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tvone2

I got the screws from an old Alpine car stereo..

not sure on the size..

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