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Dell Dimension 8200 BIOS not recognizing CPU

Last answer on Aug 26, 2009 8:07:56 pm BST Kilr_Klown, on Jan 20, 2009 12:25:22 am GMT 
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Hello,


I just installed P4 2.8 Ghz CPU in my Dell Dimension 8200, but it reads it as 1.4 Ghz, and although Windows runs dramatically slower then the original P4 2.0 Ghz CPU, Windows does recognize it as the 2.8 Gig. SHould I flash the bios, or is there a jumper on MOTHERBOARD 7E598, 7E598 0F141 that upgrades the CPU. I thought it would update it electronically.

Thanks

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1

xpcman, on Jan 20, 2009 2:41:59 am GMT
  • +1

There is a change in FSB frequency from 400 to 533 during the production of Pentiums 4 cpus. My info says 1.6 1.8 2.0 and 2.6 used 400 Mhz and 2.4 2.8 used 533 Mhz. I can't find any information from Dell on what the Bios updates might fix or if your motherboard can even work at 533 Mhz. I did find this info from a memory supplier that listed the Dell model number with 533 FSB:

A few of the 8200s have a motherboard which will support a 533 front bus speed, these can use the PC1066 RDRAM. When in doubt, give us a call at 1-800-566-3727 to help you determine exactly what you need.

KTC7338/256
KTD-DM600/256
KTD-DM800/256
KTD-DM800/512
KTD-WS420/256
KTD-WS420/512
KTD-XPSB6N/256
KTD-XPSB7/128
KTD-XPSB7/256
KTD-XPSB8/256
KTH-PVL600/128
KTH-PVL800E/256
KTM-M800/256
KTM-PL800/256
KVR600X16-16/256
KVR600X18-16/256
KVR800X16-16/256
KVR800X18-16/256

   
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2

Kilr_Klown, on Jan 21, 2009 5:12:02 am GMT

Thank you for such a fast response!! I totally forgot about the FSB difference between the P4 2.0 Ghz and the 2.8. You've been very helpful and again thank you!!!

   
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3

Marmot, on May 2, 2009 8:38:18 pm BST

I just recently went through upgrading one of these models I was given, tho a 3.06 CPU in my case.
Much reading scraped some of the crucial details:
To install CPUs with the 533 FSB, the 8200 board must have both the Intel 850E northbridge, and 40ns memory installed (not 45ns, tho it doesn't seem to care if ECC or not - I'm using PC800-40 ECC with no issue.) Some boards have the 850 northbridge - this is not capable of 533 FSB. The CPUZ utility, and others, will report this crucial detail.

   
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4

 King_Kong, on Jul 9, 2009 1:58:28 am BST

Do you know if your CPU has a Northwood or Prescott core? You might have picked up a Prescott core, and your motherboard may not be compatible with it, after all, it is a Dell.

   
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