Acer Aspire 7750G - Switchable Graphics problem

popeye i made the settings with the muxed and now i get black screen and nothing is happenning ... how can i reset my bios? without opening my laptop screws cose i have Warranty

 

Well, you should have read the whole thread. Some people have experienced this. Flashing a modded BIOS is always a risk. What model do you have?

I'm afraid you will have to open your laptop and remove the battery unless you you get the usb bios recovery method to work.

UPDATE: This site appears to have the guides for BIOS recovery. You have to sign up to download them.

Acer Aspire 7750Z acer aspire 7750g

 

after moded the bios laptop restarted and i entered bios and changed the two setting ... after that i hit save and now no img ... i have a 7750g-2454g64mnkk with ati 7670m

 

It seems some of the newer 7750G's do not like the modded bios. Did you go to the link I gave and download the service manual?

I'm afraid your only options are to either open it up or send to Acer repair.

The modded bios is 1.17. You probably have a newer CPU which is only supported in later bios releases.

 

I got mine (i7 2630QM - Radeon 6850M) back running after bricking it by messing around wirh advanced BIOS settings. After trying every recovery procedure from various websites, I decided to start swapping components. And finally, swapping the CPU with one from one if my other Notebooks, it booted up. Seems like there are settings that, when messed with, can fry the CPU or somerhing like that. Don't know if my experience helps in every brick case, but it definitely did dor me.

 

Hello!

Unfortunately, I had the same issue that you and other people here have had. I own an Acer Aspire 7750G with a ATI 6850M.

Before you posted that these combinations + Bios mod would cause a brick, I did the bios mod Procedure. Ta - dá; I have a brick now for over a month.

I was wondering if you, or anybody here, was able to solve the issue by any kind of bios reflash. Or if you guys had to send to acer support.

And, as a last resource, which CPU did you replace it? TIA.

Marcelo.

 

I wasn't able to get it back runing with known recoveries. For teating, I replaced the CPU with another i7 2630QM, which I took out of one of my other Notebooks. With this CPU, the Notebook is running fine. The CPU from my 7750G seems to be dead (it's neither working in the 7750G nor in any other Notebook I have available for testing).

 

hi there popeye,
i had send the 7750g to the acer support and they changed my mb
but the problem with the sw graph still happens... like when i install autocad newer than 2009 get error 126 and it's not working... but if i install only the intel viideo card, autocad works fine...
also when install ati card the video on youtube has a low quality but on the intel is brilliand

can u help me with this issue?
or some moded drivers or somethingg

 

You can try the modded drivers at leshcatlabs.org. Be sure to read the full manual completely and create a restore point first.

I'm afraid since the modded BIOS does not work with your particular model you are stuck with the crappy software switching.

 

Hi all,

I have an Acer Aspire 7750G, and I know this is an old topic, but here is what helped me:

1) BSOD = Bios Screen of Deadly annoyance // Bios Screen Oddly Disappear \\ Black Screen On Display
First step, remove laptop battery and unplug power cable from laptop
Second step, remove cover and ram(s) from the(ir) slot
Third step, this can be solved in 2 ways, either short the 2 pins as showned in picture: http://imgbin.org/images/7730.png or remove bios battery and hold down power button on laptop for 10-15 seconds(power discharge), this will set date to 2009 and load default settings

2) update bios to moded version
download according to your model the correct bios mod from: Index of /BIOS/Insyde
(in my case Acer Aspire 7750G = A_A_7750_P5WE0117_UlkMenus_ByCamiloml.exe)
install bios and reboot, enter bios setup and set the time correctly(if above bios reset was required) and set the following:
Go into BIOS -> Advanced -> Video Configuration -> Pci Express Graphic -> Always Enable PEG [Enabled]
Go into BIOS -> Advanced -> Video Configuration -> Pci Express Graphic -> PowerXpress Setting [Muxed Fixed Scheme]

do not disable internal graphics

3) Driver install:

Step 1,make sure you uninstall all currently available video drivers on your pc, both ATI and Intel, uninstall devices from Device Manager in Control Panel, reboot is required
Step 2, download drivers from: Blog ← leshcatlabs.net ← Keeping it simple current version: Catalyst 12.9 Sep4 UnifL Public Testing for ATi+Intel Graphics or any stable version
Step 3, follow all the install steps and reboots required, first should install DES and will require a restart, after restart, install drivers again and make sure at end you check the start ATI driver install, after that, install everything and reboot again
Step 4, enjoy, if everything done correctly you should see in Graphic properties at power at switchable graphics the High-performance GPU already active

offtopic: all this info was already in this thread but some parts i have missed, and got it later from other topics
Thanks to all that posted and reposted links, thanks to leshcat for the drivers and thanks to camiloml for the unlocked bios mod

 

Hello. After making the same mistake as some of you with enabling the onboard graphics on a 7750g (i5-2410m + 6650m graphics) i ended up with a bricked laptop. After 2 days of desperately trying to recover the bios through CRISIS mode, i gave up and looked for someone with a EEPROM programmer.

I registered just so i can tell all of you with a bricked 7750: the problem can be fixed ONLY by de-soldering the BIOS chip from the motherboard, writing the original/official bios from Acer (i put 1.20 on mine) using a dedicated programmer (Willem) and soldering the chip back on the mother board. The bad news is...it`s not something you can do for yourself using a USB drive or a CD/DVD.....but the good news is nothing is burned/destroyed (cpu or anything) and it can be fixed pretty cheap.

Hope it helps.

 

I managed to get my bricked 7750G + ATI 6650M back to life with CRISIS mode and this is what i did:

1. Download the 1.21 bios from acers website
2. Open the .rar file with winrar and extract P5WE0121.exe from Windows folder
3. Open the P5WE0121.exe file with winrar and take out this file P5WE0x64.fd
4. Rename that file P5WE0x64.fd to all this different names so you have a bunch of the same files with different names:

AA.bin
AA.fd
AA.rom
AAHW.bin
AAHW.fd
AAHW.rom
BB.bin
BB.fd
BB.rom
BBHW.bin
BBHW.fd
BBHW.rom
P5WE0.bin
P5WE0.fd
P5WE0.rom
P5WE0HW.bin
P5WE0HW.fd
P5WE0HW.rom
P5WE0x64.bin
P5WE0x64.fd
P5WE0x64.rom
P5WE0x64HW.bin
P5WE0x64HW.fd
P5WE0x64HW.rom

5. Plug in your USB and format it with FAT32
6. Put all the files you made in 4. step on the USB stick
7. Extract the file FLASH*IT.exe (FLASH*IT goes without the *, from some reason the forum deletes SHI*T) from the bios rar file you downloaded from acers website and put it on the usb stick
8. Plug the USB into your notebook, make sure you dont plug it in 3.0 port
9. Remove the power cord from the notebook
10. Hold Fn + Escape and while holding it plug the power cord back in, dont release Fn+ Escape yet
11. Press the power button, you can release Fn + Escape now
12. Notebook should turn on and after 5 min it should restart itself, if it doesnt restart after 10 minutes it means that your bios file names are wrong or something

 

About the screen getting disabled accidentally, it happened to me. Here's how it happened and what I did.

I don't know if I did the same thing as you guys, I think I DISABLED onboard graphics and DISABLED graphics switching with the modified bios and ended up with a black screen. Here's what I did to solve the problem as per instructions on the internets (it may have even been here-- it's so late and I'm so tired, I don't even remember):

Removed the laptop battery, the mobo battery and the RAM. (not sure if all that's necessary, but I'm pretty certain the mobo battery part is)

Held down the power button for about 20 seconds. (not sure if that's necessary, but for some manufacturers like Apple, sometimes this serves a purpose)

It worked like a charm and my monitor came right back up after I put my computer back together. Removing the mobo battery should restore the default bios. You'll need to reset your clock and calendar as it'll revert to January 1st 2010. Hope this helps someone and if I inadvertently plagarized someone here--- I apologize and thanks for the info! I didn't think about the mobo battery and I thought I really may have to send it into acer in disgrace or get people to post pictures of the bios menu, haha.

 

For the modded BIOS what original BIOS is necessary? v1.17, v1.20 or v1.21?
I have Acer Aspire 7750g with AMD 7670m.

 

I also have an Asus 7750G-52458G50MN (I5-2450Mhz/8GB/500GB) which has AMD Radeon HD 7670M and in Intel HD Graphics 3000.

I have upgraded from Windows 7 to 8 (Pro). Then I have installed all correct and latest drivers from the Acer download-page and all seemed to work fine. I had no chance to see if the swithable graphics actually worked (during CAD modelling), but I could see both cards installed neatly in the device manager and also I was able to run the Catalyst software from AMD, choose which card to use for wich application etc.

The problem started when I shut down the laptop and tried to boot a few minutes later. This is what happened:

1. Acer splash screen appeared
2. the windows 8 splash screen appeared (few seconds)
3. the screen went to a certain shade of black
4. screen went to another shade of black
5. screen switched off
6. step 3-5 repeated (each step taking 2-3 seconds) and the computer didn't respond to anything anymore. (except that when it was in one of the two black-shade-modes, when I move the mouse, the pointer does appear but obiously there was nothing to click on)

The only thing I could do was to hold down the power button long enough for the laptop to shutdown. Power-on again gave the same sequence, and since I had a feeling it had to do with the switchable graphics I went in the bios (v1.21) and switched the graphics to 'Integrated'. Then the laptop booted normal but with only the Intel chip active and visible in the device manager of course. To my suprise the only thing that SOMETIMES works, is not to 'shut down' but to 'reboot' the latop, then go into bios, change back to switchable graphics. Then, now and then, the laptop boots with both cards working. (so the drivers seem to work right?)

What I have done so far:

- Installed the Leshcat-drivers, 'unlocked bios' /w PEG enabled etc. etc. That worked fine, but I couldnt get the 'test version 92000-notice' of Windows away from the desktop screen without screwing up windows accepting the drivers, BUT more over, since the latest Acer-drivers from their extremely slow site are newer and specific windows 8-drivers for this model I would assume these should work fine on my laptop as well.

- as adviced by an Acer-helpdesk(woman):
a. flash bios back to 1.17 (from the extremely slow Acer site)
b. restore windows 7 with recovery tools (factory settings in my case)
c. update bios to 1.21 (from the extremely slow Acer-site)
d. upgrade to windows8
e. install latest graphics drivers from the extremely slow Acer site

Unfortunately didn't help much. (or not at all)

I have no clue how to log make any logs in such early stage in the windows' boot to see what goes wrong. It just looks like windows can't decide which chip to start, or can't start any chip properly at all. Maybe something is wrong with the I/O system?? (don't no, just something I once heard that can cause/solve hardware conflicts but to which I never made any changes on this laptop.) Does anyone have a clue where to look at at this point?

Thanks a lot!

(N.B.: This case is also still pending at the Acer (advanced) Helpdesk but I don't expect much more help from their end anymore since I have heard kind of senctences like 'only support to originally supplied software' and stuff. This is my third bad experience with an Acer device in 2 years (actually I consider myself a complete fool the have let that sales guy convince me this was a good laptop) and I will never buy anything from Acer again. Still, if any usuable help comes back from their customer service I will post it here.)

 

No one any thoughts on this one?... :-(

 

I have the same problem when playing Aion or Tera.
My Acer is 5755g; i7 2670qm, 2,2ghz, nvidia gt 630m 2gb vram, 8gb ddr3
when I play the games, orwhen Iusebenchmark the gpu doesnot work, and works only theintegrateted card. Can someone help?

 

Good evening,

I'm hoping someone could please assist me.

I have updated the BIOS and changed the appropriate settings on my 7750G with no issues. However, I see no change in my CCC. Most definitely no awesome option to choose to only use the dedicated graphics card.

Have I missed a step? If so could it pleased be explained to me (not very tech savvy). Any help would be much appreciated!

Well I just made it worse. Downloaded a new CCC and it doesn't have switchable options. I really have no idea what I was suppose to choose from here other than notebook - 6XXXM series. Download Drivers

 

It worked on my 7750G - 6645 (with AMD 7670 dedicated graphics), make sure you check in detail your model number, before you brick the laptop with the wrong BIOS. Leshcat Drivers were switchable up to 14.4, do not update to 15.7 if you want control, I made that mistake. If they go corrupt, re-install the same old version.

Any is ok, from reading blog, most bricks came from people with versions of AMD lower than 7000 series.
It will read Insyde H2O v1.17 while Acer Update is v1.20, but who cares. It's a Bios Unlocker, opens up all modifiable features of the laptop, so do not mess with anything you don't know.

http://leshcatlabs.net/downloads_unfil/

I suggest pick the 14.4 v2.4 any newer version and the Software does not allow manual switching.
Thoroughly remove and clean PC off video drivers before installation.