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Pentium D 820

post #1 of 19
Thread Starter 
Hello, I have a Pentium D 820 2.8GHz, nVIDIA GeForce 7800GTX, 2GB DDR2-533 RAM and I am getting a a Gigabyte GA-8I945P-G motherboard to OC my CPU to atleast 3GHz, maybe 3.2GHz but I only have stock heatsink/fan that came with my Dell XPS 400 so I was wondering how far you think I can get with that heatsink/fan. Also I understand the FSB and the voltage part of OC'ing Intel CPUs but I don't understand the memory part of it, if anyone could explain I would appreciate it very much. Thanks.
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post #2 of 19
Well with the stock HSF i dont think you will get too far, because i think your CPU is a smithfield and from what ive heard they run quite hot.
And as for the memory part of OCing there really isnt any, your MEM speed increases with your FSB automatically so you dont need to do anything with it......Until u need to run a divider but we will tackle that when we get to it.

-GILL-
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post #3 of 19
The stock HSF won't take the 820 that far. Getting a Tuniq Tower 120 could easily get you upto 4.0ghz for a 24/7 opperation but with the stock you'll never see 4.0ghz or maybe you will but not stable.

If possible I'd say start saving and get the Tuniq Tower 120, I have one and the difference in temperature is by far the best HSF I've ever owned and I'm goig to buy a 2nd one for my 2nd rig.

But, with the stock cooler you may see upto 3.36ghz stable, maybe a little more but temperatures maybe an issue, not a great issue but they wouldn't be pretty.

For the memory, it all depends on what you'd be getting for it.
post #4 of 19
Thread Starter 
Well I just ordered the gigabyte motherboard and I also need a new PSU since my 375W PSU that Dell sent my XPS 400 has me worried, so I am a bit low on money. I was looking at the Big Typhoon but I don't think it would fit my case, but it seems the Tuniq Tower 120 is very close to the Big Typhoon in price. Think I can get 3GHz stable with stock heatsink/fan or is it better not to try without better cooling?
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post #5 of 19
You should hit at least 3.0 on stock cooling. the 820 runs warm but no much different then the high end Prescott single core CPU's.

And I dont think you will ever hit 4.0 with any type of air cooling, I had a 78 CFM fan on my BT when I ran air and was only able to get to 3.73 stable with a load temp of 55C.

I would keep the load temps bellow 55C at all times. If you can manage this you are good to go. But remember when stress testing the system you need to stress both cores.
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post #6 of 19
Thread Starter 
With the Tuniq Tower 120 I noticed it looks a bit heavy, would I need something to support it or something?
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post #7 of 19
Comes with its own bracket, so you won't need anything else to support it and also it comes with its own fan cotroller so you can set the rpms from 1K to 2K, let me tell you that the 2K is a bit noisy but I can deal with it, so I will guess that at 1300rps it would be very quiet.

Check out my thread on the Tuniq Tower 120.
post #8 of 19
Wow that thing is huge, another one of those(take the board out to swap CPU's)
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post #9 of 19
Thread Starter 
I did something stupid and I removed the Heatsink off my CPU (Pentium D 820) and didn't have any fresh thermal paste to apply. Some of the stuff already on there was dry and some was moist, so I put the heatsink back on and continued to use my PC. Today when I use it my PC seems slower than before and it freezes up for a little bit and then continues to work, or slowdowns might be better. If I put new thermal paste on it will it be alright or did just Permanently damage my CPU? Please help I am desperate.
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My System
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post #10 of 19
no, you just need new thermal paste. just get an alcohol clean the old ond out and put a pea size AS5 and your good to go
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