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problem upgrading ram


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#1 kev25v6

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Posted 14 August 2010 - 10:41 AM

Ive had a problem with the computer shutting down recently and it seemed to be down to my ram. Ive got 2 sticks of 512mb ddr2 533Mhz. Both together they are both recognised. One 512 in and it works but slowly. Other 512 in and it wont even boot. Ive bought a 1gb stick of ddr2 667Mhz and installed it with the 512 that will boot the computer but it wont recognise the 512 in my computer and crucial scanner shows one free slot when there isnt. I turned off hyper-threading function as when its on i get a critical system error and it shuts down, i guess this is because the two sticks are not the exact same. How do i get it to work together?



OS Name Microsoft Windows XP Professional
Version 5.1.2600 Service Pack 3 Build 2600
OS Manufacturer Microsoft Corporation
System Name KEV-FKM0IPWBBIA
System Manufacturer FUJITSU SIEMENS
System Model MS-7275
System Type X86-based PC
Processor x86 Family 15 Model 4 Stepping 9 GenuineIntel ~3059 Mhz
BIOS Version/Date American Megatrends Inc. V1.2, 8/21/2006
SMBIOS Version 2.3
Windows Directory C:\windows
System Directory C:\windows\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "5.1.2600.5512 (xpsp.080413-2111)"
User Name KEV-FKM0IPWBBIA\kev
Time Zone GMT Daylight Time
Total Physical Memory 1,024.00 MB
Available Physical Memory 422.85 MB
Total Virtual Memory 2.00 GB
Available Virtual Memory 1.96 GB
Page File Space 2.81 GB
Page File C:\pagefile.sys

Edited by kev25v6, 14 August 2010 - 10:44 AM.


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#2 dc3

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Posted 14 August 2010 - 11:06 AM

You may have a bad slot. take the one 512GB module that does work and install it in the two different slot, obviously one at a time. If it doesn't work in one of the slots it will be pretty clear that there is a problem with that slot. Make sure that the RAM is seated properly, and look inside the slot to make sure that nothing is obstructing it.

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#3 kev25v6

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Posted 14 August 2010 - 12:06 PM

Ive tried each good stick in either slot and they both work on their own but when they are together it wont recognise the 512.

#4 kev25v6

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Posted 14 August 2010 - 01:24 PM

Its now started cutting out with two good sticks in and wont boot with just the new 1gb stick in, the fans just run really fast. Could it be something like a dodgy windows update thats causing it? Firefox updated a day or so ago and so did silverlight.

Ive checked the temps with Speedfan and they are

System 33c
CPU 32c
AUX 33c

The volts are

Vcore 1.35v
+`12v 12.30v
AVcc 3.31v

Ive got another 500w power pack i could try if the volts are not right.

Edited by kev25v6, 14 August 2010 - 02:02 PM.


#5 dc3

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Posted 15 August 2010 - 09:10 AM

The temperatures and voltages look good. This is turning into quite the mystery.

The only thing that I can think to suggest is to go back and make sure all of your connections are good.

Another possibility would be that the motherboard is failing.

Edited by dc3, 15 August 2010 - 09:12 AM.

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#6 kev25v6

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Posted 15 August 2010 - 11:56 AM

Ive been round every connection that plugs in, removed and refitted them all and no difference. Ive not had it cut out on me today while using it but last night when it was left on it froze up and i had to unplug it to restart it. Its done this a few times before the new ram was installed.Ive emailed Kingston support to see if they can help. If i only had the new stick i wouldnt be able to use the computer at all. Even though it does not recognise the 512mb stick at least it keeps it running. Ive checked the manual for my motherboard and it does say it can run both 533Mhz and 667Mhz ram.

My board: http://uk.ts.fujitsu.com/rl/servicesupport..._MS-7275_uk.pdf

Thanks for helping.




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