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Overclocking Intel Pentium D 820 to 3GHz

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Whats the possiblities if you overclock a ( See bellow ) to 3GHz, could that cause permanant damage the to the CPU?


Processor 1 (ID = 0)
Number of cores 2
Number of threads 2 (max 2)
Name Intel Pentium D 820
Codename SmithField
Specification Intel(R) Pentium(R) D CPU 2.80GHz
Package Socket 775 LGA (platform ID = 4h)
CPUID F.4.7
Extended CPUID F.4
Core Stepping B0
Technology 90 nm
Core Speed 2810.0 MHz (14.0 x 200.7 MHz)
Rated Bus speed 802.8 MHz
Stock frequency 2800 MHz
L1 Data cache 2 x 16 KBytes, 8-way set associative, 64-byte line size
Trace cache 2 x 12 Kuops, 8-way set associative
L2 cache 2 x 1024 KBytes, 8-way set associative, 64-byte line size
 
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you can get the 820 up to 3.8 even hit 4hz with good enough cooling i was running mines at 4ghz stable but it was getting to hot so i set it back down to 3.8ghz stable its all depends what your set up is and if u got enough cooling
 

Glitched System

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Well, I've got a 120mm fan in the back of my case, 60mm fan on side and front vents. On my CPU I've got a Coolmaster ( I think, can't remember ) It has a huge heatsink on it and 60mm fan.

Also, memory. DDR2-5300 333MHz


Can you tell me what cooling your using?
 
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the memory might limit you on your overclock and is it stock cooling????
 

Glitched System

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Nope, I broke the old stock cpu fan. The 120mm in the back is a added fan. When I reboot for a driver update, I will tell you exactly what it is. I might install fans near the HDD too.
 

Glitched System

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Just confirmed it is a Cool master, Cost around $25.
 
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What are the idle temps at stock speeds?
 

Glitched System

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CPU Goes around 56 C - 60 C :(

Motherboard goes around 35 C


I just fixed my rear fan to blow the air our and I added a front fan to pull air in, it didn't do any different =(
 
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KennyT772

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the pent d's are space heaters so you might need a better heatsink.
 

Glitched System

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Well I said screw it and I overclocked it to 3GHz

Temps;
Cpu: 58-66 C
HDD: 38 C
 
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those cpu temps are really dangerous... you need a good cpu heatsink ASAP.
 
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58-66c are ok for that chip, since it's basically 2x prescot cores. The problem is that there is no temperature monitoring on that chip. Cpu temperature is read from a thermal diode on the motherboard 'near' the cpu, so it's likely that the real temperature is 10c higher.

Download "panopsys throttlewatch". I guarantee you the chip will be throttling back, and you'll loose performance.

I once tried a Pentium D 805 in my testbed. Under high-end watercooling, the damn chip still broke over 65c @ 4ghz 1.7v. I put the chip in my brother's computer, which is unfortunately using stock cooling. ATM it's at 2.66ghz, and it gets to about 75c with Orthos. (Thermal Throttling disabled in bios)

My advice to you would be to buy an Arctic Freezer 7 Pro. That will see you get 3ghz or higher no problems.
 

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Ok, I got a can of Dust Off and used half can to blow out dust. Now it idles at 54C - 56C Using SpeedFan Program.


3.06 GHz
 
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Glitched System

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How much further can I push my CPU its at 3.16 GHz right now

56-65 C using speed fan program
 
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wait a minute... did you say "idles" at 54c-56c???

We meant the 'load' temperature when you're using a stresstest program like orthos.

That is way too hot, seems to hot even for the stock intel cooler. Have you tried replacing the thermal grease for AS5 or Ceramique? I'd highly recommend it until you can get a decent heatsink.
 

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I just bought a new heatsink and fan, its a midsize heatsink with 4 wing like sqaures coming of it. =(
 
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ahh, what heatsink is it? or show us a picture if you're not sure. :)
 

hat

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My prescott is 50c in the bios after i blew out all the air in the heatsink :/
 

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Hm..it should be better than your stock heatsink, but how much did you pay for it?
 

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bleh.. for $10 more you could have gotten a much better hs :(

Anyways... what temps do you get now (with the new heatsink)?
 

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Overclocked @ 3.1Ghz

Idle: 58C Via SpeedFan Prog


I didn't buy it, my friends dad did. He sorta broke my old stock one =(
 

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Seems the issue was fixed =/

Let my comp run all night and I can't get the temp to go over 63C.
 

DarkMastyr

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Have any of you had weird issues with programs O.C.'ing above 3.2ghz or so (~230FSB). Google Earth starts freaking out and becoming skippy, and my RKLauncher starts getting weird, too. Basically a bunch of programs start acting up. My setup looks like this:

Intel 820D watercooled with Swiftech Apex Ultra 220
Asus P5WD2-E
2x1GB OCZ Platinum Rev.1 PC6400
 
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