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AMD HT Reference Clock

post #1 of 3
Thread Starter 
Is there any risk involved, other then
overheating the cpu when overclocking non Black Edition CPU by raising the
FSB ? If i balance the NB frequency, HT Link and memory in their stock values, do i risk much for my cpu by raising HT Reference Clock ?? So actually im
interesting to find out, how higher HT Reference clock then stock 200 affects the CPU ?
post #2 of 3
Its fine within reason. I had the 640 as well and the only way to OC the thing is to adjust the Reference Clock. It does generate a little more heat, but that chip will perform cooler at 1.55vcore than the Phenom II does at stock voltage. Your base multiplier is 15x on the chip, and you should easily get 3.510ghz out of it by doing what you suggested in keeping the Memory timings, NB and HT at the values they are at when the RC is at 200mhz. Take a look at the phenom over clock link in my signature, there are some helpful methods to pick from that can get you started.

And remember 1.55v on the cpu is the max. My chip needed 1.53 to be stable at 3.6ghz, but it was not that big of a deal to me because it idled at 23c and load at 49c. I eventually came off of 3.6ghz (RC-240mhz) to 3.51(RC -234mhz) so I could keep my voltage at 1.49v on the processor. I didn't see much of a temperature drop however.
Edited by cook - 6/3/11 at 8:24am
BullDriver
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BullDriver
(13 items)
 
  
CPUMotherboardGraphicsRAM
FX-8350 Vishera 4.0GHz Asus 990FX Sabertooth MSI N465GTX 8gb Gskill Sniper 1600/9.9.9.25 
Hard DriveOptical DriveOSMonitor
64Gb Crucial SSD(os) +1tb Baracuda SataIII Asus OEM SATA DVD RW x64 Windows 7 Home Premium 25" Hanns G 
KeyboardPowerCaseMouse
Microsoft Flatty Tethered RocketFish 550w Modular Corsair 600t Logitech MX Revolution 
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post #3 of 3
Thread Starter 
Im getting max 45C on load (P95) cpu @ 3.6ghz( 240X15) @1.495V. But thats core temps and thay arnt reliable. My CPU temperature goes up to 59C then fan stars to kick in from 1000 to 1500 RPM and it stabilizes around 55C. Can my motherboard whitstand CPU voltage up to 1.55V on 24/7 usage ?
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