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Overclocked Phenom II x4 840 to 4.01GHZ: Now I want to do RAM (PICS)

post #1 of 7
Thread Starter 
Did my Phenom II x4 840 to 4.01GHZ with settings:
VCore: 1.6025 volts.
HT Link: 1.380 volts
NB: 1.40 volts
Chipset Voltage: 1.54 volts

Starts, posts, and runs games with an idle of 19-23 Degrees C and load temperatures of 41-45 Degrees C.

Currently my ram is on auto timed, but I set my voltages to 1.65 for the overclock.

I want to aim for 800mhz exactly for my DRAM frequency.

But, I don't know how because when I set my DRAM to 800mhz in bios and set my timing to 9-9-9-24-41, I get BSODs with a DRAM frequency of 835.

I get BSODs as well when I set my frequency to 667 (frequency of 730 +- in cpu-z) in bios with timing according to CPU-Z.



(don't mind the low voltage because that is the mobo throttling.)

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Edited by ismet - 6/19/11 at 5:27pm
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Always upgrading
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post #2 of 7
Try the x6.66 (1333Mhz) memory multiplier; running at 250 bus clock x 6.66 it gets you 1666Mhz memory speed. To run exactly 1600Mhz, you need to lower the bus clock to 240 which may affect your OC.
post #3 of 7
Thread Starter 
I did that and it brought my DRAM frequency to 835mhz and I got BSODs. Is it safe to overvolt my ram past 1.650?
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Phenom II x4 955 BE 3.8GHz @1.43v Northbridge ... Asus M4A87TD-EVO GeForce BFG GTS 250 1GB GDDR3 OCZ Platinum 2x2GB OCZ3rpr16002gk 
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Always upgrading
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Phenom II x4 955 BE 3.8GHz @1.43v Northbridge ... Asus M4A87TD-EVO GeForce BFG GTS 250 1GB GDDR3 OCZ Platinum 2x2GB OCZ3rpr16002gk 
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post #4 of 7
Be careful, if it isn't stable you could suffer from your OS or data corrupting on your HDD. That is a swell overclock for the chip though
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post #5 of 7
Up to 1.75V (a confirmed max safe limit for PSC ICs; if you have other ICs you may be able to go further but we can't guarantee that) should be fine

Test with SuperPi MOD v1.5 at the 32M setting
post #6 of 7
Quote:
Originally Posted by ismet View Post
Did my Phenom II x4 840 to 4.01GHZ with settings:
VCore: 1.6025 volts.
HT Link: 1.380 volts
NB: 1.40 volts
Chipset Voltage: 1.54 volts

Starts, posts, and runs games with an idle of 19-23 Degrees C and load temperatures of 41-45 Degrees C.

Currently my ram is on auto timed, but I set my voltages to 1.65 for the overclock.

I want to aim for 800mhz exactly for my DRAM frequency.

But, I don't know how because when I set my DRAM to 800mhz in bios and set my timing to 9-9-9-24-41, I get BSODs with a DRAM frequency of 835.

I get BSODs as well when I set my frequency to 667 (frequency of 730 +- in cpu-z) in bios with timing according to CPU-Z.
Make sure that the timing is 9-9-9-24-41-2T not 9-9-9-24-41-1T.
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post #7 of 7
Thread Starter 
Quote:
Originally Posted by dixson01974 View Post
Make sure that the timing is 9-9-9-24-41-2T not 9-9-9-24-41-1T.
I don't have the option to change the command rate to 2T.
Always upgrading
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II x4 955 BE 3.8GHz @1.43v Northbridge ... Asus M4A87TD-EVO GeForce BFG GTS 250 1GB GDDR3 OCZ Platinum 2x2GB OCZ3rpr16002gk 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 1TB 7200 RPM 32MB Lite-On DVD reader/burner, 24x DVD+R Cooler Master V6GT  Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
Viewsonic 32" 1360x768 LCD Screen Microsoft Keyboard Thermaltake Toughpower XT 775W Thermaltake Element G Mid-Tower 
MouseMouse Pad
Microsoft Mouse 10 Year Old Pad 
  hide details  
Reply
Always upgrading
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II x4 955 BE 3.8GHz @1.43v Northbridge ... Asus M4A87TD-EVO GeForce BFG GTS 250 1GB GDDR3 OCZ Platinum 2x2GB OCZ3rpr16002gk 
Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 1TB 7200 RPM 32MB Lite-On DVD reader/burner, 24x DVD+R Cooler Master V6GT  Windows 7 Ultimate x64 
MonitorKeyboardPowerCase
Viewsonic 32" 1360x768 LCD Screen Microsoft Keyboard Thermaltake Toughpower XT 775W Thermaltake Element G Mid-Tower 
MouseMouse Pad
Microsoft Mouse 10 Year Old Pad 
  hide details  
Reply
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