i7 3820 X79 Running At 4.5Ghz On Stock Voltage?

[Transition]

So I've had my 3820 for about three years now and thought about trying to overclock a little to see what it's thermal limit might be, little did I know that it would be a pretty damn amazing overclocker. After doing some testing I found that I could take it to the maximum 4.3Ghz ratio on stock voltage without any dramas, but then I tried 4.5Ghz and was amazed that it was then running stable and still is at the stock 1.215/1.225 voltage with 0 calculations errors or thermal throttling on prime 95 for over 4 hours. Temperatures are also great with idle temps around 35-40C, and maximum temps around 65-70C with around 20C ambient room temperature.  

 

Anyone else ever had this happen?

 

Setup consists of:

Asrock Extreme 3 X79 Mobo

i7 3820 CPU

Corsair H100i Cooler - With Noctua NF-F12's

Corsair RM 650 Watt

Kingston Ram 1333

Sapphire 7870 Ghz Edition

Nanoxia Silent Mid Tower

 

 

[AlwaysFSX]

24 hour test please. If it works you must blow your money on a beast water cooling setup and get that godly chip to 5.5+.

[Transition]

I'll do a 24 hour for sure, I just can't believe how badass of a chip it is.

[terrytek]

How did you overclock a locked processor? Last time I heard, the 3820 was locked 4 core.

[SkilledRebuilds]

How did you overclock a locked processor? Last time I heard, the 3820 was locked 4 core.

Bus Speed @ 125mhz instead of 100Mhz doing this?

[airdeano]

How did you overclock a locked processor? Last time I heard, the 3820 was locked 4 core.

 

you can still overclock a locked by using the STRAP/BLK method. the 3820 is a limited

CPU (max multi ability 43 multi) but not locked.

 

note  the bus speed is 125 and multi is 36.

[terrytek]

you can still overclock a locked by using the STRAP/BLK method. the 3820 is a limited

CPU (max multi ability 43 multi) but not locked.

 

note  the bus speed is 125 and multi is 36.

Oh ok. But still confuses me. I overclock, but just not using the STRAP/BLK method.

[Transition]

Oh ok. But still confuses me. I overclock, but just not using the STRAP/BLK method.

Since the STRAP/BLK on the 3820 is basically unlocked it's not too different to just bumping the CPU Ratio up.  

[airdeano]

Oh ok. But still confuses me. I overclock, but just not using the STRAP/BLK method.

 

the 3820 is a special beast, it has a limited multiplier of 43 and to extend past

4.3GHz, you have to use the STRAP/BLK method to get to a higher OC

frequency. this can also be achieved on locked processors as well, depending on

stability of the PCIe and devices using those higher BLK speeds.

[terrytek]

Since the STRAP/BLK on the 3820 is basically unlocked it's not too different to just bumping the CPU Ratio up.  

Oh, Ok.

[Jumper118]

So I've had my 3820 for about three years now and thought about trying to overclock a little to see what it's thermal limit might be, little did I know that it would be a pretty damn amazing overclocker. After doing some testing I found that I could take it to the maximum 4.3Ghz ratio on stock voltage without any dramas, but then I tried 4.5Ghz and was amazed that it was then running stable and still is at the stock 1.215/1.225 voltage with 0 calculations errors or thermal throttling on prime 95 for over 4 hours. Temperatures are also great with idle temps around 35-40C, and maximum temps around 65-70C with around 20C ambient room temperature.  

 

Anyone else ever had this happen?

 

Setup consists of:

Asrock Extreme 3 X79 Mobo

i7 3820 CPU

Corsair H100i Cooler - With Noctua NF-F12's

Corsair RM 650 Watt

Kingston Ram 1333

Sapphire 7870 Ghz Edition

Nanoxia Silent Mid Tower

 

CPU-Z.png

1.22v is very high for stock voltage. its not bad for 4.5ghz though.

[Transition]

24 hour test please. If it works you must blow your money on a beast water cooling setup and get that godly chip to 5.5+.

 

 

So I've had my 3820 for about three years now and thought about trying to overclock a little to see what it's thermal limit might be, little did I know that it would be a pretty damn amazing overclocker. After doing some testing I found that I could take it to the maximum 4.3Ghz ratio on stock voltage without any dramas, but then I tried 4.5Ghz and was amazed that it was then running stable and still is at the stock 1.215/1.225 voltage with 0 calculations errors or thermal throttling on prime 95 for over 4 hours. Temperatures are also great with idle temps around 35-40C, and maximum temps around 65-70C with around 20C ambient room temperature.  

 

Anyone else ever had this happen?

 

Setup consists of:

Asrock Extreme 3 X79 Mobo

i7 3820 CPU

Corsair H100i Cooler - With Noctua NF-F12's

Corsair RM 650 Watt

Kingston Ram 1333

Sapphire 7870 Ghz Edition

Nanoxia Silent Mid Tower

 

CPU-Z.png

 

Well after further testing I found that 4.5Ghz ran pretty damn stable at 1.256 volts, only 0.455 higher than the stock voltage my Mobo set, with the same idle and maximum temps I reported the first time round. Maybe in future when I can afford godly water cooling I'll take it to the 5Ghz range