Processor Upgrade for socket 939

September 19, 2009 at 06:35:46
Specs: Microsoft Windows XP Professional, 2.21 GHz / 3071 MB

Good Morning. I just found this on ebay for $70. It's an Athlon 64x2 4800+ dual core processor.I'm currently running the 3700+ single core psu. My mobo is a gigabyte ga k8ns 939 and supports this psu. My question is, would it be worth sticking more money into a 939 system? I was thinking about upgrading the vid card to the radeon 3850 and the articles I read said that it would perform better with a dual core psu. This would mean sticking another $170 into an aging machine. I know it's all relative to the user, but work is slow right now and I thought maybe this upgrade would extent the life of my machine a little longer. How would this psu stack up against the newer dual cores? Thanx for any input.


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September 19, 2009 at 08:09:46
IMO, it's not worth sinking that kind of money into an old S939 system, especially an nF3 based board with AGP. And if you double check that ebay link, it's to a socket AM2 CPU, not a S939.

How about overclocking your CPU? It will easily do 2.75GHz with just a few minor BIOS changes. As for the video card...what do you have now?

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September 19, 2009 at 08:13:25
I have a radeon X800GTO agp. I'm inclined to agree with you on the upgrade, just wanted a second opinion. Thanx

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September 19, 2009 at 08:27:17
You have a great CPU/board combo for overclocking. I highly suggest you look into it. The 3700+ will do 2.75GHz without breaking a sweat.

Suggested overclock settings:

CPU multi = 11x
CPU reference clock = 250MHz
AGP = 67MHz
HT multi = 4x (or 800MHz)
memory = 333MHz
timings = 2.5-3-3-10
spread spectrum = disabled
cool n quiet = disabled
CPU voltage (vcore) = increase as necessary to stablize the overclock

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Related Solutions

September 19, 2009 at 08:32:34
The hot budget trick right now is to buy a single core socket AM3 Sempron 140 Sargas for about $37. It's actually an Athlon II X2 with one core disabled. When installed on a board based on one of the AMD chipsets with either the SB710 or SB750 southbridge, the ACC (advanced clock calibration) option can be used to unlock the 2nd core. The Sempron will miraculously transform into an Athlon II X2 Regor. It's a bit of a gamble, but the success rate is pretty high.

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September 19, 2009 at 09:05:55
Hey Jam, how are ya? Thanx for the oc suggestion. I'm gonna try it. I'll let you guys know how it went. Gotta go cut the grass. Thanx again.

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September 19, 2009 at 12:21:21
"I was thinking about upgrading the vid card to the radeon 3850..."

That requires your system has a minimum 450 watt PS

What's the capacity of your PS?

If it's less than 450, you need to either upgrade it for that chipset, or get a card with a chipset that your PS can handle.
In the latter case,
See response 14


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September 19, 2009 at 12:32:11
Well, that's another issue. I have a 400 watt Antec psu. It's an older model with 2 12volt rails. The radeon 3850 requirs 30 amps on the 12 volt rail. Adding mine together I can't get 30 amps, so I kinda ruled that out too. I guess it's time for a new build when work picks up. Thanx for the info.

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