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upgrading intel cpu? lga 775


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#1 layzworm

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Posted 24 November 2010 - 05:19 AM

hi i have a dell optiplex gx280 pc (i'm spendthrift ok!) 3.2ghz pentium 4, 1gb ddr2 ram windows xp (32 bit only!) and i want to spend (a little bit of) money to speed it up for video editing HD footage. i can't upgrade my ram because system information says my motherboard only supports 1gb, so i want to upgrade to a cheap second hand more powerful (if only slightly) cpu i know my mother board has a LGA 775 cpu socket which supports:

Intel Pentium 4 (2.60 - 3.80 GHz)
Intel Celeron D (2.53 - 3.60 GHz )
Intel Pentium 4 Extreme Edition
(3.20 - 3.73 GHz)
Intel Pentium D (2.66 - 3.60 GHz)
Pentium Extreme Edition
(3.20 - 3.73 GHz)
Pentium Dual-Core (1.40 - 3.33 GHz)
Intel Core 2 Duo (1.60 - 3.33 GHz)
Intel Core 2 Extreme (2.66 - 3.20 GHz)
Intel Core 2 Quad (2.33 - 3.00 GHz)
Intel Xeon (1.86-3.40 GHz)
Intel Celeron (1.60 - 2.40 GHz)

my question is which could i find cheap second hand that would yield the greatest speed increase? (i'm guessing it'll be a dual core) and by cheap i mean less than US$50 :busy:

thanks in advance

Edited by layzworm, 24 November 2010 - 05:24 AM.


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#2 layzworm

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Posted 24 November 2010 - 05:40 AM

is a pentium dual core 3.2ghz for US$40 good?

#3 killerx525

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Posted 24 November 2010 - 06:29 AM

According to Dell if you have a small form-factor computer you can max your ram to 2GB or if you full size desktop computer you fit in 4GB of ram.

This will get the exact specs of your computer.

Publish a Snapshot using Speccy

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
Games: APB: Reloaded, Hours played: 3100+  System2: Late 2011 Macbook Pro 15inch   OFw63FY.png


#4 cookmiester

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Posted 24 November 2010 - 11:27 AM

Forget the Xeon, Celeron and Pentium. These aren't going to run games at all very well. Xeon is for servers, Pentium and all those versions there on the list, even the extreme edition, won't be much good. Celeron is for stuff like general computing. Your best option there would be a Core 2 Extreme. But, watch out for Wattage. Make sure your PSU is big enough for a Core 2 Extreme.

#5 layzworm

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Posted 24 November 2010 - 02:40 PM

According to Dell if you have a small form-factor computer you can max your ram to 2GB or if you full size desktop computer you fit in 4GB of ram.

This will get the exact specs of your computer.

Publish a Snapshot using Speccy


thanks if i can upgrade my ram that would be good too. http://speccy.piriform.com/results/Ky2fpiYJ36zrV4C72qPQgfq

Edited by layzworm, 24 November 2010 - 02:44 PM.


#6 layzworm

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Posted 24 November 2010 - 02:44 PM

Forget the Xeon, Celeron and Pentium. These aren't going to run games at all very well. Xeon is for servers, Pentium and all those versions there on the list, even the extreme edition, won't be much good. Celeron is for stuff like general computing. Your best option there would be a Core 2 Extreme. But, watch out for Wattage. Make sure your PSU is big enough for a Core 2 Extreme.


core 2 extreme won't be under US$50 for sure. how about the pentium D 3.2ghz for US$40??

#7 DJBPace07

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Posted 24 November 2010 - 10:04 PM

Is that CPU list direct from Dell? I ask becuase not all LGA 775 motherboards support all LGA 775 CPU's. From what limited information I could find at Dell, that PC should be dated from around 2005-ish, if that is the case, unless there was a BIOS update, those motherboards may not be able to use many of the Core 2 CPU's. If you are going to be doing any HD video editing, you should have much more than 1GB of memory and a dual, preferably quad if your editing program supports it, CPU.

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#8 dpunisher

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Posted 24 November 2010 - 10:56 PM

You are limited to a single core CPU on the 915 chipset.

P4 650, 660 and I think a P4 EE edition are the fastest CPUs that will work on that. Problem is the motherboard and power supply might not be enough for a 100+ watt CPU.

That 3.2 ghz CPU on that board is one of the quicker that was offered. Any CPU upgrade really will not be noticeable.

Each RAM slot supports up to 1 gig.

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#9 killerx525

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Posted 25 November 2010 - 12:30 AM

There are many form factors for this model and one of them can max out to 2GB of ram whereas the other forms can max out to 4GB of ram.

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
Games: APB: Reloaded, Hours played: 3100+  System2: Late 2011 Macbook Pro 15inch   OFw63FY.png


#10 layzworm

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Posted 27 November 2010 - 06:01 AM

so how can i find out if my motherboard and power supply would support a pentium d 940? and why do all the system spec programs say my motherboard only supports 1gig of ram?

#11 DJBPace07

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Posted 27 November 2010 - 11:42 PM

I'm not entirely sure if Dell keeps a compatible parts list for their older PC's online. The best solution would be to see what other configurations of your computer were offered and go with that. If you're wanting to edit HD video, you should probably scrap using this old computer and buy, or build, a new one that allows for newer CPU's and more RAM as these two components would be heavily used in production.

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#12 the_patriot11

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Posted 29 November 2010 - 12:34 AM

so how can i find out if my motherboard and power supply would support a pentium d 940? and why do all the system spec programs say my motherboard only supports 1gig of ram?


Check your motherboard CPU specs here, if your board is the 915 chipset chances are the Pentum D 940 will not work as it is a dual core CPU. The easiest way to tell is to find the motherboard specs and support list on dells websiite, which isn't accessible, the other way is to look up the motherboards chipset and what it was designed to support. You can find a list of intel Chipsets and what CPUs they support here as you can see, for both 915 chipsets the only CPUs supported are pentium 4s and Celeron Ds (and no, the celeron Ds are not dual core) the Pentium Ds are not supported until you get to the intel 955 chipset or higher. And the specs say that, for 1 of 2 reasons, 1 being that is all that it supports is 1 gig-this being the most likely scenario, or 2 that is all they have tested, which is not likely. I would go with DJBs advice-this system is really to old to do much with, especially if you want to play with HD.

Edited by the_patriot09, 29 November 2010 - 12:35 AM.

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