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Compatablility

post #1 of 36
Thread Starter 
I've currently got a socket 478 P4 2.66ghz 533mhz fsb and 512kb L2. I want to put in as big of a CPU as possible. Since it's a Dell, I contacted them and got a spec sheet that says I can use a 3.0ghz, 800mhz fsb w/512kb L2. It's a couple of years old and am wondering if it is possible to put in a 3.4ghz, 800mhz fsb w/512kb L2. I have the most current bios. I am kind of figuring that Dell has limited it to the 3.0ghz due to insufficient power supply and heat control as well as the possibility of the 3.4ghz not being around when they made the machine. Is it possible to use the 3.4ghz processor if I upgrade the power supply and mod the case to improve cooling or is this truly a Bios limitation.

Thanks for the input.
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80gb 3.0sata Barracuda 7200.9 Windows XP Pro Rosewill 19" LCD $5 Logitech 
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post #2 of 36
No the Baord will only be compatible to 3.0ghz as the spec sheet says. If you where to put that other CPU in it it wont boot up , its not compatible with that cpu unfortunately. The PSU will have nothing to do with it as the board simply isnt designed to work with a 3.4ghz CPU at bios and hardware level.
post #3 of 36
My personal opinion is that you can use a 3.4Ghz Pentium4 Northwood CPU in that system if you upgrade the Power Supply. The difference between a 3.0 P4 Northwood 800fsb and a 3.4 P4 Northwood 800fsb is simply the additional 400Mhz. You have been told that a P4 Northwood 800fsb will be recognised and the 3.4 is still a P4 Northwood 800fsb processor so it will also be recognized. The clock crystal generator that tests processor speed will give you the 3.4Ghz. At worst you might not see the speed of the CPU in the boot up.

If you decide to go this route, please post your results.

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post #4 of 36
Im not sure if Updating the bios is going to be a problem with that Pre-build board. With some you can update the bios and with some you cant so a bios update mayhelp, not sure though.
post #5 of 36
Quote:
Originally Posted by ENTERPRISE1701
Im not sure if Updating the bios is going to be a problem with that Pre-build board. With some you can update the bios and with some you cant so a bios update mayhelp, not sure though.
Please give some information of any modern prebuilt system (last 5 years) that does not allow for a BIOS update subsystem. Links and research would be nice.

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post #6 of 36
Thread Starter 
I have updated the bios, but nothing newer has been released for a couple of years. I doubt, Dell, will release any new updates (period) but if they do they probably won't change the specs that they've already released. So the real question is if I stay with the same specs on a Northwood, would the extra 400mhz actually run and run at full speed or am I wasting my time and money. I do appreciate your guys' input.
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Hard DriveOSMonitorKeyboard
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CPUMotherboardGraphicsRAM
X2 4600+ Toledo @ 2.8 Foxconn NF4SK8AA-8KRS eVGA 8800GTS 320mb 2048mb pc4000 3-3-3-8 
Hard DriveOSMonitorKeyboard
80gb 3.0sata Barracuda 7200.9 Windows XP Pro Rosewill 19" LCD $5 Logitech 
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post #7 of 36
Quote:
Originally Posted by grumpy
I have updated the bios, but nothing newer has been released for a couple of years. I doubt, Dell, will release any new updates (period) but if they do they probably won't change the specs that they've already released. So the real question is if I stay with the same specs on a Northwood, would the extra 400mhz actually run and run at full speed or am I wasting my time and money. I do appreciate your guys' input.
Well its very unlikely they will bring out any bios updates for that motherboard..if you where to put that 3.4ghz chip in it wont recognise it period IMO so you wont be benefitting from anything.
post #8 of 36
I think you will have no problem with an installation of the 3.4 if you install a better PSU and cooler. The 4600 motherboard is pretty much an Intel 865PERL so it will easily handle any Northwood CPU in my view.

That being said. I agree that your performance benefit will not be all that great percentage wise, but you will be moving from a 533fsb non hyperthreaded CPU to an 800fsb Hyperthreaded CPU so you will gain a fair benefit if multi-tasking.

There are two opinions here so I will contact the Dell Support forums to see what they say on this matter.

I think you will have no problem with an installation of the 3.4 if you install a better PSU and cooler.

That being said. I agree that your performance benefit will not be all that great.

Edit: Here is someone who is using a 3.2GHz P4 800fsb in the 4600 system. E-mail this person and ask them what they did to get this processor to work. I bet they didn't even install a more powerful power supply although I would do this.

http://cgi.ebay.com/Dell-Dimension-4...QQcmdZViewItem

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Hard DriveOptical DriveOSMonitor
2 X Callisto Deluxe 25nm 60GB Plextor PX-B910SA 4x Blu-ray DVD-RW Win7 64 2 x Samsung 275T+ 
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post #9 of 36
I'm pretty sure it will work...

I have a friend that has an old Dimension 4500 that came with a 2.4ghz Northy, and all the pins broke (dont ask how). He went to COMPUSA (this is before he discovered newegg) and picked up a 3.2ghz 800fsb proc.

It ran at 3.2ghz no problem, but the FSB was reduced to 533mhz.
    
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post #10 of 36


As I had thought. Here's your answer

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2 X Callisto Deluxe 25nm 60GB Plextor PX-B910SA 4x Blu-ray DVD-RW Win7 64 2 x Samsung 275T+ 
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