Solved

Windows 7 64bit will not start on 4 to 8GB memory increase

Posted on 2011-02-16
5
833 Views
Last Modified: 2012-06-27
I installed Win7 x64 on a Dell 390 OK with (2) 2GB DDR2 667 memory. When I add 2 more 2GB DDR2 667 sticks, it will not boot in normal or repair mode. The Dell 390 system memory check states 4 identical 2GB sdram.
Tried several times and had no luck. Removed 2 sdram, back to 4GB and it boots fine.
0
Comment
Question by:mgreenleafsr
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 4

Accepted Solution

by:
majidhajali earned 125 total points
ID: 34911352
it may because of a failed RAM Module. try to add ram modules one by one and see the result.
0
 
LVL 1

Expert Comment

by:sevlahpt
ID: 34911529
Hi.
You get any error or just wont boot Windows?
Do you see POST? Can you see if BIOS can detect 8GB Ram?
0
 
LVL 16

Expert Comment

by:cantoris
ID: 34911843
Some motherboards hate 4 DIMMs and you have to increase voltages a little to make them work.
0
 
LVL 20

Expert Comment

by:Iain MacMillan
ID: 34912207
use Ultimate Boot CD (www.ultimatebootcd.com) and run some diagnostics on your motherboard and RAM.  As already stated, try booting with one module at a time.  Could be faulty module or dimm socket.

also does it boot with 3 modules (6GB)??  As Cantoris said, some PC boards need some tweaking to allow all memory sockets to be used, had this issue with a desktop system when running with 8GB it crashed and bluescreened, dropped to 6GB and the system was stable and working fine.  Not all bios's allow you to tweak voltages, such as mainstream manufacturers.

also helps if the modules are ALL identical.
0
 

Author Comment

by:mgreenleafsr
ID: 34916935
Thank you all for your suggestions. After playing checkers with the RAM, I found the bad one and am running with 6GB at this time.
0

Featured Post

RoboForm Secure Password Management System

RoboForm Everywhere - Superb Browser Support
Windows / Apple / IOS / Android / Linux / Chrome OS
Use different complex passwords everywhere
Best Secure Password Management by far
Synchronize all of your devices instantly
Safe, Secure & Highly Recommended!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

While working, an annoying popup showing below will come and we cannot cancel or close it form the screen. The error message will come again and again.
A quick guide on how to use Group Policy to create a custom power plan and set it active on Windows 7.
With the advent of Windows 10, Microsoft is pushing a Get Windows 10 icon into the notification area (system tray) of qualifying computers. There are many reasons for wanting to remove this icon. This two-part Experts Exchange video Micro Tutorial s…
The Task Scheduler is a powerful tool that is built into Windows. It allows you to schedule tasks (actions) on a recurring basis, such as hourly, daily, weekly, monthly, at log on, at startup, on idle, etc. This video Micro Tutorial is a brief intro…

742 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question