vRAM drop after Win7 is installed

March 22, 2010 at 04:30:41
Specs: Windows 7
I installed Win7 recently and I found that the vram is less than what i have using Vista. I have installed the drivers and it doesn't help.

The system said i have 1.2G vram avaliable.
But of course not all can be used.
In Vista, I have totally 128mb in use
In Win7, only 64mb can be used.
The manufacturer said it is setted by the computer system itself.
It's really annoying since my computer work poorer under Win7...
Is there anything I can do to increase the vram? At least reach what i got under Vista...

My compuer: Fuijitsu Lifebook A1120(notebook)
Graphic card:Mobile Intel(R) 4 Series Express Chipset Family

See More: vRAM drop after Win7 is installed

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March 22, 2010 at 05:01:12
From what I found, the Lifebook A1120 has the integrated Intel GMA X4500MHD graphics. It has no memory of it's own...it "steals" memory from the system. There should be a base setting in the BIOS (32MB, 64MB, 128MB, etc) & more memory can be "stolen" dynamically on an as-needed basis. Changing the OS should have no effect on the graphics memory.



"It's really annoying since my computer work poorer under Win7..."

Win7 generally performs better than Vista. Who did the installation? Were all the latest available drivers installed?


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March 22, 2010 at 06:33:10
What I mean "poorer" is mainly because only 64mb vram is used.

In the BIOS=>advanced=>video features
there is only one option on "Display"
but no setting on ram...

And the fact is when I use Vista, I have 128 but only 64 at Win7. Both are tried after formatting the hard disk, that means it's "pure" windows without many programmes.

The Win7 is genuine and I install it myself.
I've tried both upgrading directly from Vista and format=>install, still only 64mb under Win7

For drivers, no matter from Intel) or 15.10.1883(from Fujitsu) are 64mb vram. I also tried to uninstall all graphic drivers and install only one again, same results appear.

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March 22, 2010 at 08:32:07
See jam's Response 1 in this:

The same probably applies for your Mobile Intel Graphics Media Accelerator X4500MHD video

Look in System Information
e.g. click on the Windows 7 (Start) icon lower left, type: msinfo32
in in the Start Search box, press Enter.
On the left side, open up Components, click on Display.

What does it say beside Adapter RAM ?

Note that , that may vary dymanically, depending on when you look at that.

Did you download and install everything applicable here, including the Display Manager ?
Windows 7 32 bit

A Display Manager icon may show up in Control Panel after it has been installed, as well as it being listed in your All Programs list somewhere.

You may need to use that Display Manager to change shared ram (memory) settings.


It says in it...
"A copy of your Lifebook User's manual is located in your Windows OS....."
but that's if you still have the original Fujitsu software installation, but of course you don't now.

There is nothing about bios settings or display settings in it.

Brand name system bioses tend to have fewer things you can set in them, especially laptop bioses.
The amount of ram shared with the video may not be in the display settings section - it may be some where else in the bios - and in this case, that may not be there all all because the amount shared is done dynamically.

I was going to suggest that you install the main chipset drivers, because if they aren't installed your mboard and video adapter may not work properly without them, but Intel does not list Vista or Windows 7 drivers for your Mobile Intel GM45 Express Chipset, so Vista and Windows 7 probably have them built in.

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Related Solutions

March 22, 2010 at 08:45:33

Playing to the angels
Les Paul (1915-2009)

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March 22, 2010 at 09:21:26
"In the BIOS=>advanced=>video features
there is only one option on "Display""

I don't think you're looking in the right place. See if there's a setting for 'shared memory' or 'frame buffer'....it may not be listed under 'advanced'. Integrated peripherals? Check the entire BIOS menu.

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March 23, 2010 at 07:09:58
I've checked everything in BIOS but seems nothing about ram/memory etc.

I installed the old Vista driver(a year ago's version...) and the usable vram is now 128mb. Thanks for you helps.
Of course I want to find if there are any ways to increase to 256. The graphic card should support up to that.

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March 23, 2010 at 07:24:52
See jam's Response 1 in this:

The same probably applies for your Mobile Intel Graphics Media Accelerator X4500MHD video

From 64mb up to 384mb (in your case) of the ram can be shared with the onboard video, depending on what is dynamically determined by whatever determines it.

A video adapter that's built into the mboard and cannot be removed IS NOT A CARD !

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November 2, 2010 at 09:20:47
Mr Sius can you tell me what driver / driver version you use for your laptop? who has managed to increase VRAM become like normal again, I also have the same problem with you, when using win xp: 256Mb and when I install Windows 7 becomes: 64MB, and I can not play anything with my laptop ...! (Intel GMA 4500MHD:so I must use what driver ? please give me solution or maybe that link..!
so please a fairly detailed explanation mr ...! TQ ..
^ ^

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November 2, 2010 at 20:40:18

Your problem has probably got NOTHING to do with any software on the hard drive.

See the info in the answer posts in this thread, especially response 7.

XP requires a lot less ram than Vista or Windows 7 do.

How much ram does your laptop have installed in it?

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November 2, 2010 at 21:45:59
my ram: 2gb
but my problem there on the VRAM, which dropped when using Windows 7,
See the response # 6, I think the problem of mr sius have been completed,
and is it true? if I'm using Windows 7 + used the Old Vista Driver, VRAM will return to normal when I use win xp (256Mb )..???
thx B4

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November 3, 2010 at 12:13:04

We have not heard from SiuS since his last post in this subject, and he has not made a post in any subject on this site since.

If you can get in touch with SiuS, he may be able to supply more info.

You could try sending him a PM - Personal Message. He will then get a message in his email inbox that someone has sent him a Personal Message from this site, and if he chooses to, he will respond.

Click on See all below your Tracked Post Messages list .

Click on xx Personal Messages.

At the bottom of the page, send a message to SiuS.
Include the URL of this subject in your message.

If he replies, you will then get a message in your email inbox that someone has sent you a Personal Message from this site, and the message will appear in your Personal Messages list.

There is no need for him to know your email address, or visa versa, if there is enough info in the Personal Messages.

jam's post, the one referenced at the link in response 7, is the best explanation I've seen of the situation with this particular onboard video.

The usual situation with onboard video is you are able to adjust the amount of ram that is shared with the onboard video, somewhere in the bios,
Or - sometimes that's auto determined by the bios, and can't be changed by the user, depending on how much ram you have installed. You're never supposed to share more than half of your installed ram with the onboard video, but in this case, since you have 2gb of ram, I would think either
- you could set the amount of ram shared with the onboard video to it's maximum
- or - it would be auto set to it's maximum.

In either case, I do not see how the amount of ram shared with the onboard video could be different, if the total installed ram amount is the same, with different operating systems if the bios auto determines that , or if settings you make in the bios determine that - there is no way I know of that the bios can "know" which operating system it is that you are using, unless there is a setting regarding that in the bios that you can deliberately change.

It's possible software that is installed along with the specific video drivers for the onboard video has some setting where you can set the amount of ram shared with the onboard video, and the default setting amount can be different depending on the software version, but I DO NOT recall EVER seeing that on ANY computer that I have worked on.
(However, with some brand name system original software installations, you can access the bios settings with a brand name supplied program in Windows, as well as, or instead of, while booting.)

Since the problem you guys are having seems to occur when Vista or Windows 7 is installed from scratch, it's quite possible you get this situation because the video software was NOT installed properly.

One thing that is very important is that you install the video software the right way.

(If you are updating "drivers", usually you MUST Un-install the previous "drivers" FIRST.)

Sound and video "drivers" always have associated files that must be installed properly along with the actual drivers. If you install only the actual drivers, it's likely the device will NOT work properly.

Unless the instructions for installing a device tell you otherwise....
(this ALWAYS applies to video and sound adapters )

You DO NOT install drivers for a device while booting into Windows, if the software for the device has not been installed yet - when Windows detects a generic device or New Hardware while booting, you allow it to search for drivers, it doesn't find any, and it wants you to show it the location of the drivers - CANCEL that, continue on to the desktop, and install the software for the device using the proper installation from a CD or the proper installation file that you downloaded from the web.
The same applies no matter when Windows finds New Hardware !

If you DID install drivers that way,

(The following also applies if you want to un-install previous software, or re-install the same software)

- for video "drivers"....

- go to Control Panel - Programs and Features - and Un-install the software you installed, reboot, DO NOT install drivers while booting, let the desktop screen fully load.

Install the video software properly by running the proper download you got from the web, or if you have the CD that came with the video card that's in a slot, or if you have the CD that came with the brand name computer that has the Drivers on it, run the video software installation from the installation program on that.

Whenever you load Windows from a regular Windows CD (or DVD) from scratch, after Setup is finished you must load the drivers for the mboard, particularly the main chipset drivers, in order for Windows to have the proper drivers for and information about your mboard hardware, including it's AGP or PCI-E, ACPI, USB 2.0 if it has it, and hard drive controller support. If you have a generic system and have the CD that came with the mboard, all the necessary drivers are on it. If you load drivers from the web, brand name system builders and mboard makers often DO NOT have the main chipset drivers listed in the downloads for your model - in that case you must go to the maker of the main chipset's web site, get the drivers, and load them.

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