Overclock.net › Forums › AMD › AMD CPUs › Overclocking a 3800+ Dual core 64X2?
New Posts  All Forums:Forum Nav:

Overclocking a 3800+ Dual core 64X2? - Page 2

post #11 of 18
Where do you suggest? This forum or some website for beginners?
Beast
(13 items)
 
  
CPUGraphicsRAMHard Drive
AMD X2 3800 Winchester Radeon x1900XTX 2 Gigs GSkill 200 HD 7200 RPM 
OSMonitorKeyboardPower
Windows Pro Gateway VX920 Logitech 600 watts 
MouseMouse Pad
Logitech Harry Potter :p 
  hide details  
Reply
Beast
(13 items)
 
  
CPUGraphicsRAMHard Drive
AMD X2 3800 Winchester Radeon x1900XTX 2 Gigs GSkill 200 HD 7200 RPM 
OSMonitorKeyboardPower
Windows Pro Gateway VX920 Logitech 600 watts 
MouseMouse Pad
Logitech Harry Potter :p 
  hide details  
Reply
post #12 of 18
This forum is the website for beginners.
post #13 of 18
Quote:
Originally Posted by zBeasty View Post
I see now... I have a 3800 X2 too, and it would restart while playing a game at 2.2 GHz. If I get better cooling it will remedy this? (I am a noob at overclocking too )
It restarts because your HTT multiplier is at factory 5x. Turn it down to 4x. Increase vdimm to 2.8v, and *maybe* increase vcore the next notch up. It shouldn't need much at a 200Mhz increase. Mine could hit that easily on stock voltage.
Hatredcomputer
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 Asus P6T6 Revolution eVGA 8800GTS (for now) RipJaws 6GB DDR3 2000 
Hard DriveOptical DriveOSMonitor
2x Samsung 500GB RAID0 Plextor PX755SA 7 x64 Samsung 24" 
KeyboardPowerCaseMouse
Arctosa Corsair HX750 Modular Silverstone TJ07-BW Razer Lachesis 
  hide details  
Reply
Hatredcomputer
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 Asus P6T6 Revolution eVGA 8800GTS (for now) RipJaws 6GB DDR3 2000 
Hard DriveOptical DriveOSMonitor
2x Samsung 500GB RAID0 Plextor PX755SA 7 x64 Samsung 24" 
KeyboardPowerCaseMouse
Arctosa Corsair HX750 Modular Silverstone TJ07-BW Razer Lachesis 
  hide details  
Reply
post #14 of 18
I found this, if I turn the multiplier down it slows down other parts? (RAM?)

Now if you have a CPU with a locked multiplier & you cannot go over 10x then leave it @ 10x. And just play with the HTT. P.S. The Athlon 64's have no FSB they have HTT.

The HTT is 200MHz default.
The HTT multiplier is 5x default.
So, 200MHz x 5 = 1000MHz (2000MHz DDR)
CPU Frequency = 2.00GHz ((HTT 200MHz x 10(CPU Multiplier))
If you change the HTT anywhere between 201 to 250 then you need to reduce the HTT multiplier to 4x.

The HTT is 250MHz OC.
The HTT multiplier is now 4x.
So, 250 x 4 = 1000MHz (2000MHz DDR)
CPU Frequency = 2.50GHz ((HTT 250MHz x 10(CPU Multiplier))
Can you see how this works? You are keeping the HTT speed at a stable speed while OC'ing the CPU Frequency.

The HTT is 280MHz OC.
The HTT multiplier is now 4x.
So, 280 x 3 = 840MHz (1680MHz DDR)
CPU Frequency = 2.80GHz ((HTT 280MHz x 10(CPU Multiplier))
Now with this, you increase the CPU Frequency to 2.80GHz but lose on the HTT speed. This is why you NEVER Lower the CPU Multiplier when OC'ing.


I could of done this.
The HTT is 280MHz OC.
The HTT multiplier is now 4x.
So, 280 x 4 = 1120MHz (2240MHz DDR)
CPU Frequency = 2.80GHz ((HTT 280MHz x 10(CPU Multiplier))
But there may be stability issues due to the HTT being higher than the 1000MHz mark. Especially when you have an OC of 2.80GHz.

Looks like he knows what hes talking about...

http://www.hardwareanalysis.com/content/topic/38948/
Beast
(13 items)
 
  
CPUGraphicsRAMHard Drive
AMD X2 3800 Winchester Radeon x1900XTX 2 Gigs GSkill 200 HD 7200 RPM 
OSMonitorKeyboardPower
Windows Pro Gateway VX920 Logitech 600 watts 
MouseMouse Pad
Logitech Harry Potter :p 
  hide details  
Reply
Beast
(13 items)
 
  
CPUGraphicsRAMHard Drive
AMD X2 3800 Winchester Radeon x1900XTX 2 Gigs GSkill 200 HD 7200 RPM 
OSMonitorKeyboardPower
Windows Pro Gateway VX920 Logitech 600 watts 
MouseMouse Pad
Logitech Harry Potter :p 
  hide details  
Reply
post #15 of 18
Quote:
Originally Posted by zBeasty View Post
I found this, if I turn the multiplier down it slows down other parts? (RAM?)

Now if you have a CPU with a locked multiplier & you cannot go over 10x then leave it @ 10x. And just play with the HTT. P.S. The Athlon 64's have no FSB they have HTT.

The HTT is 200MHz default.
The HTT multiplier is 5x default.
So, 200MHz x 5 = 1000MHz (2000MHz DDR)
CPU Frequency = 2.00GHz ((HTT 200MHz x 10(CPU Multiplier))
If you change the HTT anywhere between 201 to 250 then you need to reduce the HTT multiplier to 4x.

The HTT is 250MHz OC.
The HTT multiplier is now 4x.
So, 250 x 4 = 1000MHz (2000MHz DDR)
CPU Frequency = 2.50GHz ((HTT 250MHz x 10(CPU Multiplier))
Can you see how this works? You are keeping the HTT speed at a stable speed while OC'ing the CPU Frequency.

The HTT is 280MHz OC.
The HTT multiplier is now 4x.
So, 280 x 3 = 840MHz (1680MHz DDR)
CPU Frequency = 2.80GHz ((HTT 280MHz x 10(CPU Multiplier))
Now with this, you increase the CPU Frequency to 2.80GHz but lose on the HTT speed. This is why you NEVER Lower the CPU Multiplier when OC'ing.


I could of done this.
The HTT is 280MHz OC.
The HTT multiplier is now 4x.
So, 280 x 4 = 1120MHz (2240MHz DDR)
CPU Frequency = 2.80GHz ((HTT 280MHz x 10(CPU Multiplier))
But there may be stability issues due to the HTT being higher than the 1000MHz mark. Especially when you have an OC of 2.80GHz.

Looks like he knows what hes talking about...

http://www.hardwareanalysis.com/content/topic/38948/
What was making your system unstable was your FSB x HTT multi was too high. It needs to be no more than 1000MHz. You can go a little over, but I don't think is much of a benefit. Don't lower your CPU multi. The only reason I could think of why someone would do this is to max out their HTT. Turn your FSB/HTT multi down. It should be in "advanced chipset options" or something like that.
Hatredcomputer
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 Asus P6T6 Revolution eVGA 8800GTS (for now) RipJaws 6GB DDR3 2000 
Hard DriveOptical DriveOSMonitor
2x Samsung 500GB RAID0 Plextor PX755SA 7 x64 Samsung 24" 
KeyboardPowerCaseMouse
Arctosa Corsair HX750 Modular Silverstone TJ07-BW Razer Lachesis 
  hide details  
Reply
Hatredcomputer
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 Asus P6T6 Revolution eVGA 8800GTS (for now) RipJaws 6GB DDR3 2000 
Hard DriveOptical DriveOSMonitor
2x Samsung 500GB RAID0 Plextor PX755SA 7 x64 Samsung 24" 
KeyboardPowerCaseMouse
Arctosa Corsair HX750 Modular Silverstone TJ07-BW Razer Lachesis 
  hide details  
Reply
post #16 of 18
What else would the HTT multi be called? I saw something that had 5x 1000Mhz, 4x 800Mhz etc options in it, and it was on 5x. And should I slowly go up to 2.8v on the vdimm, or immedietly?
Beast
(13 items)
 
  
CPUGraphicsRAMHard Drive
AMD X2 3800 Winchester Radeon x1900XTX 2 Gigs GSkill 200 HD 7200 RPM 
OSMonitorKeyboardPower
Windows Pro Gateway VX920 Logitech 600 watts 
MouseMouse Pad
Logitech Harry Potter :p 
  hide details  
Reply
Beast
(13 items)
 
  
CPUGraphicsRAMHard Drive
AMD X2 3800 Winchester Radeon x1900XTX 2 Gigs GSkill 200 HD 7200 RPM 
OSMonitorKeyboardPower
Windows Pro Gateway VX920 Logitech 600 watts 
MouseMouse Pad
Logitech Harry Potter :p 
  hide details  
Reply
post #17 of 18
Thread Starter 
The only thing I'm able to change is the FSB frequency. If I change it to anything other than auto my system hangs. There is some stuff in Hyper Transport but nothing that looks like the above. Maybe I have a weird bios.
Porsche
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7-950 ASUS Rampage 3 Extreme EVGA GTX 480 6gb Mushkin 
Hard DriveOptical DriveOSMonitor
OCZ 60gb SSD/ 800GB WD LG dvd Win7 Pro Samsung Syncmaster 24" 
KeyboardPowerCaseMouse
Memorex Antec 850 Quattro Antec 900 Logitech 
Mouse Pad
Belkin 
  hide details  
Reply
Porsche
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7-950 ASUS Rampage 3 Extreme EVGA GTX 480 6gb Mushkin 
Hard DriveOptical DriveOSMonitor
OCZ 60gb SSD/ 800GB WD LG dvd Win7 Pro Samsung Syncmaster 24" 
KeyboardPowerCaseMouse
Memorex Antec 850 Quattro Antec 900 Logitech 
Mouse Pad
Belkin 
  hide details  
Reply
post #18 of 18
Quote:
Originally Posted by FlaKing View Post
because your CPU only gets hotter when you apply more voltage.
erm, no! Multi's, and to a lesser extent, FSB do also affect temperature
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD CPUs
Overclock.net › Forums › AMD › AMD CPUs › Overclocking a 3800+ Dual core 64X2?