I have a intel d945gcnl board. My computer restarts when it used upto 30 mb graphic memory.

Yes there is!

Intel® Celeron® Processor J4125

https://www.intel.ca > products > sku > specifications
CPU Specifications ; Total Cores. 4 ; Total Threads. 4 ; Burst Frequency. 2.70 GHz ; Processor Base Frequency. 2.00 GHz ; Cache. 4 MB.
Graphics Video Max Memory: 8 GB
Graphics Output: eDP/DP/HDMI/MIPI-DSI
Memory Types: DDR4/LPDDR4 upto 2400 MT/s
Burst Frequency: 2.70 GHz

Hello here are the intel homepage:

http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Intel%C2%AE+945+Express+Chipset+Family+Boards&ProductProduct=Intel%C2%AE+Desktop+Board+D945GCNL

When no display, the fault is useualy the power supply failing, or the power wires is connected wrong.

You can also try to add a graphic card, in the PCI-E graphic socket, instead using the onboard graphic.

Good luck

Download the graphics driver for your operating system here:
http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Intel%C2%AE+945+Express+Chipset+Family+Boards&ProductProduct=Intel%C2%AE+Desktop+Board+D945GCNL

Hi, here is what youll need. http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Intel%C2%AE+945+Express+Chipset+Family+Boards&ProductProduct=Intel%C2%AE+Desktop+Board+D945GCNL
That contains all the drivers for that MB.
If this helps, please vote.

The motherboard has a built-in graphics card and it uses shared RAM. It uses part of the main RAM memory and the main computer memory is reduced by the amount of RAM the graphics card grabs.
You can limit the amount of RAM the graphics card used by configuring the graphics RAM in the BIOS configuration.

The model number you provided is incorrect.
It is most likely, D945GCNL. Intel site for your MB; http://downloadcenter.intel.com/SearchResult.aspx?lang=eng

If you’re currently using 2 DIMMs of memory remove one DIMM. Open your manual to page 11. First remove DIMM "L". Attempt booting your system. Listen for possible bios beeps. Than shut the system down and remove the memory from " K " and insert your second memory DIMM. Again, boot system and listen for bios beeps. Intel suggest when installing memory on to the D945GCNL motherboard that it be done in a specific manner. See, 1.4 System Memory Page 16, in the TechProdSpec.pdf manual provided below; http://downloadmirror.intel.com/15115/eng/D945GCNL_TechProdSpec.pdf
The power supply currently in your system with does not provide enough wattage for your motherboard. To help find how much power you do need open the next link provided; http://www.journeysystems.com/?power_supply_calculator
It’s better to have more wattage power than you need. Even though you have an Intel manual for your board it’s suggested you download it from Intel. You'll need Adobe reader to view the manual. With Adobe you can use the zoom in feature. The next pdf link is your manual;
http://downloadmirror.intel.com/15115/eng/D945GCNL_ProductGuide02_English.pdf
I do not think there is anything wrong with you bios or your system memory. I think your system is under powered.

Happy holidays!
Mike

you can as high graphics card as you want as long as the is a PCI card.

hope this helps.
please rate good.

If you need further help, reach me via phone at https://www.6ya.com/expert/mark_445a24324be9eb03

go here
http://www.intel.com/support/motherboards/desktop/D945GCNL/

here are the specifications of *********** board go through it...
Processor Support Intel® Pentium® 4 processor, Intel® Celeron® D processor and Intel® Celeron® processor in the 478-pin package
Note: It is important to verify supported processors before using this Intel® desktop board. Supported front side bus speed 800, 533, and 400 MHz Integrated Graphics Intel® 865G Chipset with Intel® Extreme Graphics 2 Chipset Intel® 865G Chipset AGP Connector AGP 3.0 (4X & 8X Speed 1.5 and 0.8 Volt Only) Memory Type Dual Channel DDR 400 MHz (PC3200), 333 MHz (PC2700), and 266 MHz (PC2100).
Note: Be sure to review important memory and system bus speed considerations before using this Intel® Desktop Board Max Memory Capacity of up to 4 GB Memory Slots 4 DDR DIMM Sockets Slots 6 PCI
So it will support DDR2 and you can upgrade upto 4GB...

there should be no virtual memory limitation on a motherboard. That limit is a windows only setting that is controlled through the control panel and limited physically by the hard drive. Perhaps you mean to say video memory? ...or conventional memory?...or which other?