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9 Posts

10-22-2008

usa

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  • Posts: 9
  • Registered: ‎10-22-2008
  • Location: usa
  • Views: 254
  • Message 1 of 3

T61 memory upgrade to 4GB slows down system

2008-11-06, 11:12 AM

Hi,

I've bought from lenovo 2gb memory stick for my thinkpad t61. After adding the new stick my system recognized it and the installed ram is now 4gb, but I noticed that my PC became too slow after increasing the ram to 4gb..Should I make any configuration changes?
here are my system informations:

OS: microsoft windows vista home premium

VERSION: 6.0.6001 service pack 1 build 6001

SYSTEM MODEL: 7658CTO

SYSTEM TYPE: X86-based PC

PROCESSOR: intel(r) core(tm)2 duo CPU t9300 @ 2.50ghz, 2501 mhz, 2 cores

BIOS VERSION/DATE: lenovo 7LETC1WW (2.21), 7/1/2008

SMBIOS VERSION: 2.4

INSTALLED PHYSICAL MEMORY (RAM): 4.00 gb

TOTAL PHYSICAL MEMORY: 2.99 gb

AVAILABLE PHYSICAL MEMORY: 1.51gb

 

the problem is not only that my computer does recognize only 2.99 gb from 4gb, but also it became TOO SLOW...

 

PLEASE HELP, THANKS

 

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17 Posts

05-03-2008

USA

18 Signins

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  • Posts: 17
  • Registered: ‎05-03-2008
  • Location: USA
  • Views: 140
  • Message 2 of 3

Re: T61 memory upgrade to 4GB slows down system

2008-11-06, 19:56 PM
The x86 won't show all the 4GB of RAM. There may be some way editing registry, else just use the x64 to see all 4GB that you have.
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24 Posts

10-06-2008

Morgan Hill, Ca

214 Signins

586 Page Views

  • Posts: 24
  • Registered: ‎10-06-2008
  • Location: Morgan Hill, Ca
  • Views: 586
  • Message 3 of 3

Re: T61 memory upgrade to 4GB slows down system

2008-11-06, 21:52 PM

I've done a lot of benchmarking (passmark)... the only thing relevant to your situation is that the extra memory should not slow you down.  The only real value of the extra memory is to raise the threshold of where the system needs to use disk as opposed to ram as virtual memory.   At 4GB, I have to leave a lot of programs open to exceed 50% of ram... which would be 2GBs.  'Tis wonderful to never see the disk being used in that fashion.

 

Anyway, I think you are right in suspecting a configuration problem.... although I don't know what the "fix" is... good luck... somebody here must know how to walk through the probable causes.

Richard
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