Seriously need help in overclocking Phenom II x6 1055t

[unreal104]

I overclock to 3.5ghz with default voltage, just changed base clock to 250.

At first i was using lionsquare cooler, when the temperature reached to 73c, multiplier goes down to 7.5x, got back to full speed when the temperature down to 60c. When temperature hit 73c again, multiplier goes down again.

So I thought lionsquare is not good enough for overclocking therefore I changed to CM hyper 212 plus.

But same problem and got worst, when the temperature hit 63c, multiplier goes down. Only goes back to full speed when the temperature goes down to 55c. Down again when the temperature reached to 63c.

MB = M4A88TD V EVO
RAM = Team Elite 1333 (7-7-7-22)
All voltage default
Cool & Quiet, C1E = Disabled

I really dont know whats happening ? Anybody got the same problem ? Is it a BIOS bug or something ?

My casing is CM Elite 310 with 2 intake fans from front and side panel and one exhaust fan.

Thanks in advanced!

UPDATED**********

I try to used Intel Burn Test, multipliers are stable does not fluctuate not like Prime95. May I know anymore cpu stressing test ?
My max temp is got in intel burn test was 63c. Ambient 28C

Now i overclocked to 3.85ghz with vcore 1.4v, temperature rise to 65c and multiplier goes down. I dont know whats happening. Temperature treshold for lionsquare was 73c, with better cooler hyper 212 plus..threshold is 64c .. T_T..pls help

 

[jcamel24]

Check your BIOS. My Gigabyte has a function called Hardware Thermal Control. It will automatically lower the vcore and the multiplier if it sees that the CPU is overheating. Max recommended for Phenom II is 62c. I would not turn this off unless you want to run the risk of frying your $180 chip!

I would check the airflow through your case and try reapplying your TIM to the cooler. My temps never get above 50c under load at 3.71ghz in Prime95.

 

[sadams04]

60+ is too hot! Your FSB @ 250 is probably what is generating a lot of heat. Drop that down to the stock 200 and just change the multiplier. I am at 3800MHz (200FSB and 19x multiplier) with max temps right @ 50.

@jcamel24 - 3.71GHz puts you at 206FSB and 18x multiplier?

 

[jcamel24]

@jcamel24 - 3.71GHz puts you at 206FSB and 18x multiplier?

I also have 1055t (see my sig) @ 265X14. Have pushed it further but this is the fastest it will run without bumping up the vcore.

 

[unreal104]

I cant change the multiplier because mine one is not black edition. Ambient temperature is 31C (Singapore). Casing is Elite 310 with 2 intake fans from front and side panel.

I just now testing with open case. 3.5ghz at default voltage reached 59C then throttles down. Throttling temp varies +/- 3c. is there anybody who get high temp but cpu never throttle ? I guess it has to do with MB bios. @jacamel I dont see any such hardware thermal control in my bois ((

 

[jcamel24]

1. What program are you using to monitor your temperatures? And are you monitoring the temps of the cores or the socket? These chips are known to report at least 10c lower core temps than socket!

2. No advice for the bios, except do you have turbo core shut off? I saw in your op that you have C'n'Q and C1E disabled.