Hi everyone, i have just upgraded my machine and im now having some issues with the amount of RAM i have installed and system reserving it, which may or not be due to both the onboard GPU and my ATI card thats just been added.
Ill start by posting my machine details, and before upgrade and after upgrade stats, including physical hardware installed, bios and system readings, and OS..
My machine is an HP DC5100 SFF, with HP 09e8H mobo which includes the Mobile Intel® 915GM/GMS, 910GML Express Chipset Family onboard GPU, and a pentium 4 2.8ghz single core CPU.
Before:
Windows 7 home premium 32 bit
2816 MB DDR2 RAM, consisting of...
2x 1GB Kingston KVR800D2N5/1G, PC2 6400
1x 512MB Dane elec value VD2D667-064645N PC2 5300
1X 256MB HP HYS64T32000HU PC2 4200
RAM detected in BIOS, 2816mb, RAM detected in CPU-Z 2816mb, RAM detected by windows in computer > system 2.75 GB (2.75 GB usable)
After the RAM upgrade...
Windows 7 ultimate 64 bit
4096 MB DDR2 RAM, consisting of...
2x 1GB Kingston KVR800D2N5/1G, PC2 6400
2x 1GB Corsair xtreme performance XMS2 CM2X1024-PC2 6400
RAM detected in BIOS, 4096mb, RAM detected in CPU-Z 4096mb, RAM detected by windows in computer > system 4.0GB (3.12 GB usable)
resource monitor shows 905mb as hardware reserved.
I thought that was a lot of RAM to be losing, over 900mb worth, maybe it was the 64 bit OS, or maybe the onboard GFX, eventhough i hadnt previously lost any RAM due to the onboard, i know the card itself wouldnt have 900mb of capability, but maybe with address space etc etc it may be the cause, so i added my card, thinking that it would release any mem that the onboard was using before because i would now be using a dedicated card, but no.
Card fitted: ATI HD5450 512mb PCI-e, and now, its even worse...
RAM detected in BIOS, 4096mb, RAM detected in CPU-Z 4096mb, RAM detected by windows in computer > system 4.0 GB (2.75 GB usable)
resource monitor shows 1282mb as hardware reserved.
My BIOS has no memory mapping options so i couldnt 'release' any that way, i have unchecked the max memory option in msconfig, checked in the bios and the intel graphics adapter (presuming this is the onboard?) is now automatically been disabled since i added the card (it was set on IRQ5 before i think) disabled the intel gfx adaptor within windows device manager, and i have also tried loading the default BIOS setup.
Then i tried resetting the CMOS, it booted, stopped at the black BIOS screen, counted up in mb in the top left corner from 0mb all the way to 4096mb, than after it had finished that count it showed some other info lower down on that same screen, i dont have the exact wording but it was something like...
Devices and info.
ATAPI DVDRW drive
500GB SATA HDD
3200mb RAM
and now within windows i still have 4.0 GB physically detected, 2.75 GB usable, and no idea at all what that 3200mb reading in the BIOS detection screen was all about.
The readings in resource monitor before and after the GFX card addition differ by 377mb, so i cant see it being a case of more usage by another piece of hardware as surely id lose 512mb exactly, unless address space for a 512 card could be as high at that amount.
Here are pictures of everything i consider to be relevant to this...
So, windows knows i have 4GB installed, as does CPU-Z, onboard GFX are disabled in every way possible, and as you can see, the HD5450 graphics card is using its own 512mb of memory, so why cant i use my RAM? Does anyone have any other ideas of things i could try?
MAny thanks in advance