Solved Windows 7 x64 4gb ram 3.25gb usable

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Spyro

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Hello I have a Compaq Presario SR5310F with a ati redeon hd 4500 and have just done a clean install from Windows Vista Ultimate x64. Vista could use a 4gb of ram but windows 7 can only use 3.25 of it? I have looked under msconfig but maximum memory is turned off what is wrong?
 

My Computer My Computer

At a glance

Windows 7 Home Premium x64PIntel(R) Pentium(R) Dual CPU E2140 @ 1.60GHz4gbATI Radeon HD 4600 Series
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Compaq Presario SR5310F
OS
Windows 7 Home Premium x64
CPU
PIntel(R) Pentium(R) Dual CPU E2140 @ 1.60GHz
Motherboard
IPILP-LC (Lancaster8)
Memory
4gb
Graphics Card(s)
ATI Radeon HD 4600 Series
Hard Drives
Hitachi HDT725025VLA380 ATA Device
Antivirus
Microsoft Security Essentials
Browser
Opera 44, Internet Explorer 11
Hi Spyro, welcome to the Forum.

Your question is a very frequently asked one & with 4gb of RAM installed Windows 7 will only show around 3.25gb as usable or available, as a portion of the RAM in used for hardware & resources, which is not shown as available because it is already in use.

So what you are reporting is normal for 4gb of RAM. If you wish to increase available RAM you need to install more RAM. If you decide to to that make sure you use matched RAM of the one type, for best results.
 

My Computer My Computer

At a glance

Windows 7 Home Premium 64 bit sp1Intel i5 3570 3.4Ghz Ivy Bridge SKT 1155 quad...G-Skill Rip Jaws 16Gb (8x2) DDR3 -1600 PC3 12...Gigabyte NVIDIA GT610 1Gb DDR3 810/1200 PCI-E...
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Self built using existing case
OS
Windows 7 Home Premium 64 bit sp1
CPU
Intel i5 3570 3.4Ghz Ivy Bridge SKT 1155 quad core
Motherboard
Gigabyte Z77-HD3 SKT 1155 2xSata 3, 4x USB 3.0
Memory
G-Skill Rip Jaws 16Gb (8x2) DDR3 -1600 PC3 12800 CL 10 red
Graphics Card(s)
Gigabyte NVIDIA GT610 1Gb DDR3 810/1200 PCI-E 2.0 Silent
Sound Card
NVIDIA High Definition & Realtech High Definition Audio
Monitor(s) Displays
2 x Philips 226V4L 16:9 aspect ratio
Screen Resolution
1920 x 1080 HD
Hard Drives
Samsung 840 Pro 256gb SSD, SATA 3.
Hitachi Touro Portable 1tb, USB 3.0 HDD used for image b/ups.
PSU
Corsair VS450
Case
Codeng
Cooling
PSU fan & CPU fan
Keyboard
Logitech
Mouse
Logitech Wireless trackball M570
Internet Speed
Wireless 3G. 3mg down & 550kb up.
Antivirus
Bitdefender Internet Security 2020
Browser
Opera (Current Version) & Firefox
Other Info
MS Office 2013 Pro. Davis weather station software. MGE Nova 600 avr UPS.
Thanks

Thank you so was windows vista using 3.25gb of ram too? Or is windows 7 using less than vista
 

My Computer My Computer

At a glance

Windows 7 Home Premium x64PIntel(R) Pentium(R) Dual CPU E2140 @ 1.60GHz4gbATI Radeon HD 4600 Series
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Compaq Presario SR5310F
OS
Windows 7 Home Premium x64
CPU
PIntel(R) Pentium(R) Dual CPU E2140 @ 1.60GHz
Motherboard
IPILP-LC (Lancaster8)
Memory
4gb
Graphics Card(s)
ATI Radeon HD 4600 Series
Hard Drives
Hitachi HDT725025VLA380 ATA Device
Antivirus
Microsoft Security Essentials
Browser
Opera 44, Internet Explorer 11
As Windows 7 is based on Vista but is much better, then it's probably the same, but Win 7 actually shows how much RAM is actually available for use. I suspect Vista showed the total installed & not what was actually available for use. Most likely just how the information is displayed.
 

My Computer My Computer

At a glance

Windows 7 Home Premium 64 bit sp1Intel i5 3570 3.4Ghz Ivy Bridge SKT 1155 quad...G-Skill Rip Jaws 16Gb (8x2) DDR3 -1600 PC3 12...Gigabyte NVIDIA GT610 1Gb DDR3 810/1200 PCI-E...
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Self built using existing case
OS
Windows 7 Home Premium 64 bit sp1
CPU
Intel i5 3570 3.4Ghz Ivy Bridge SKT 1155 quad core
Motherboard
Gigabyte Z77-HD3 SKT 1155 2xSata 3, 4x USB 3.0
Memory
G-Skill Rip Jaws 16Gb (8x2) DDR3 -1600 PC3 12800 CL 10 red
Graphics Card(s)
Gigabyte NVIDIA GT610 1Gb DDR3 810/1200 PCI-E 2.0 Silent
Sound Card
NVIDIA High Definition & Realtech High Definition Audio
Monitor(s) Displays
2 x Philips 226V4L 16:9 aspect ratio
Screen Resolution
1920 x 1080 HD
Hard Drives
Samsung 840 Pro 256gb SSD, SATA 3.
Hitachi Touro Portable 1tb, USB 3.0 HDD used for image b/ups.
PSU
Corsair VS450
Case
Codeng
Cooling
PSU fan & CPU fan
Keyboard
Logitech
Mouse
Logitech Wireless trackball M570
Internet Speed
Wireless 3G. 3mg down & 550kb up.
Antivirus
Bitdefender Internet Security 2020
Browser
Opera (Current Version) & Firefox
Other Info
MS Office 2013 Pro. Davis weather station software. MGE Nova 600 avr UPS.
Thank you

Thank you for explaining this to me!:)
 

My Computer My Computer

At a glance

Windows 7 Home Premium x64PIntel(R) Pentium(R) Dual CPU E2140 @ 1.60GHz4gbATI Radeon HD 4600 Series
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Compaq Presario SR5310F
OS
Windows 7 Home Premium x64
CPU
PIntel(R) Pentium(R) Dual CPU E2140 @ 1.60GHz
Motherboard
IPILP-LC (Lancaster8)
Memory
4gb
Graphics Card(s)
ATI Radeon HD 4600 Series
Hard Drives
Hitachi HDT725025VLA380 ATA Device
Antivirus
Microsoft Security Essentials
Browser
Opera 44, Internet Explorer 11
You are welcome & thanks for getting back.
 

My Computer My Computer

At a glance

Windows 7 Home Premium 64 bit sp1Intel i5 3570 3.4Ghz Ivy Bridge SKT 1155 quad...G-Skill Rip Jaws 16Gb (8x2) DDR3 -1600 PC3 12...Gigabyte NVIDIA GT610 1Gb DDR3 810/1200 PCI-E...
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Self built using existing case
OS
Windows 7 Home Premium 64 bit sp1
CPU
Intel i5 3570 3.4Ghz Ivy Bridge SKT 1155 quad core
Motherboard
Gigabyte Z77-HD3 SKT 1155 2xSata 3, 4x USB 3.0
Memory
G-Skill Rip Jaws 16Gb (8x2) DDR3 -1600 PC3 12800 CL 10 red
Graphics Card(s)
Gigabyte NVIDIA GT610 1Gb DDR3 810/1200 PCI-E 2.0 Silent
Sound Card
NVIDIA High Definition & Realtech High Definition Audio
Monitor(s) Displays
2 x Philips 226V4L 16:9 aspect ratio
Screen Resolution
1920 x 1080 HD
Hard Drives
Samsung 840 Pro 256gb SSD, SATA 3.
Hitachi Touro Portable 1tb, USB 3.0 HDD used for image b/ups.
PSU
Corsair VS450
Case
Codeng
Cooling
PSU fan & CPU fan
Keyboard
Logitech
Mouse
Logitech Wireless trackball M570
Internet Speed
Wireless 3G. 3mg down & 550kb up.
Antivirus
Bitdefender Internet Security 2020
Browser
Opera (Current Version) & Firefox
Other Info
MS Office 2013 Pro. Davis weather station software. MGE Nova 600 avr UPS.
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