Overclock.net › Forums › AMD › AMD CPUs › [OFFICIAL]Athlon II X2 Regor Series OC Club
New Posts  All Forums:Forum Nav:

[OFFICIAL]Athlon II X2 Regor Series OC Club - Page 110

post #1091 of 1106
It is soldered.
post #1092 of 1106
I think that I discovered what has been hindering my overclocking efforts!
Non existent VRM cooling, I have the Asus M4AT88-M motherboard.
While on the 4.32GHz overclock I felt the MOSFETs and they were hot!
like, if I had my finger on it for 2-3 seconds it became painful.
So I made a crap makeshift cooler thing to test my hypothesis and
it seemed to run for a few minutes longer before becoming unstable, and
the makeshift cooler had become quite warm.
It seems to me that if this motherboard is struggling with according to this formula:
Overclocked Watts = Default Watts * (Overclocked Mhz \ Default Mhz) * (Overclocked Vcore \ Default Vcore)²
about 105Watts, what will happen when I get a 125Watt cpu?
Anyway...
I think I'm going to get some proper cooling for the VRM, see what happens.

What do you guys think?
post #1093 of 1106
Quote:
Originally Posted by Willaraz View Post

I think that I discovered what has been hindering my overclocking efforts!
Non existent VRM cooling, I have the Asus M4AT88-M motherboard.
While on the 4.32GHz overclock I felt the MOSFETs and they were hot!
like, if I had my finger on it for 2-3 seconds it became painful.
So I made a crap makeshift cooler thing to test my hypothesis and
it seemed to run for a few minutes longer before becoming unstable, and
the makeshift cooler had become quite warm.
It seems to me that if this motherboard is struggling with according to this formula:
Overclocked Watts = Default Watts * (Overclocked Mhz \ Default Mhz) * (Overclocked Vcore \ Default Vcore)²
about 105Watts, what will happen when I get a 125Watt cpu?
Anyway...
I think I'm going to get some proper cooling for the VRM, see what happens.

What do you guys think?

Short answer - "Poof".

Don't do it.
That board if it's running hot already with a Regor core will certainly kick it with a 125W CPU in place.
Smeg-O-Rama
(14 items)
 
  
CPUMotherboardGraphicsRAM
FX-8300 Crosshair V-Z Some old piece of smeg that actually works...? C.R.S. 
CoolingMonitorPower
Scythe Susanoo Asus VH238-H 23' LCD 1600 little pink bunnies with drums..... 
  hide details  
Reply
Smeg-O-Rama
(14 items)
 
  
CPUMotherboardGraphicsRAM
FX-8300 Crosshair V-Z Some old piece of smeg that actually works...? C.R.S. 
CoolingMonitorPower
Scythe Susanoo Asus VH238-H 23' LCD 1600 little pink bunnies with drums..... 
  hide details  
Reply
post #1094 of 1106
post #1095 of 1106
Given my impatience and the capital controls (I'm in Greece by the way) I decided to make my own vrm cooler out
of an AMD heatpiped CPU cooler.
I created this monstrosity! Warning: Spoiler! (Click to show)










alas, after setting it all up id made very little difference, and I have come to the conclusion that this motherboard
just cant provide the right power. with its 4+1 VRM and whatnot.
Anyway I have learned a great deal from this overclock attempt! And thank all of you for the excellent input! thumb.gif
post #1096 of 1106
That cooler is awesome in so many ways. Especially considering the fact that it would never exist without capital controls.
post #1097 of 1106
Hah, thanks smile.gif
I would have said something about poverty being the mother of creativity but I suppose
a different kind of constraint takes the credit here!

Before I closed up the the case I noticed that not only the MOSFETs but also the Inductors were
very hot, and I was wondering why I haven't seen any motherboards with cooling on them.
post #1098 of 1106
Hi all,

I've lurked on this forum several times but I found this thread and had to make an account and post. One of my PC's is based off a Biostar A785GE and Regor 245 w/ 4GB of DDR2-800. I have had it OC'd stable on stock voltages and stock heatsink for years @ 3.33Ghz/230Mhz FSB/2Ghz NB-HT(higher due to FSB but can't remember exact number). These are great CPU's and the mobo isn't bad either. My RAM is some cheap PQI stuff which I think holds it back, but still I knew it would go higher, although never really gave it much over 235 FSB until recently.

So I got into Windows at 3.84ghz/265fsb/1800ht with voltages @ 1.2v for CPU-NB and 1.4v for CPU core, but Prime95 would fail after 2 or 3 test cycles. I think the stability was either northbridge heat-related (although it never went over 51C) or RAM-related, but I did reduce the RAM from 800 to 667 and then 533 with no success.

So I've brought it down to what is stable. On stock cooling and 1.4Vcpu/1.2NB I've got it running prime95 with no errors at 3.48Ghz/2160mhz-HT/240mhz bus, which puts my RAM right at its normal 400mhz(x2) for ddr800 when set to 667mhz. That seems to be the most I can get without any prime95 errors. I could run it higher and not notice but prime95 would eventually error out.

I see some are getting more speed out of these things, and some get less. Is watercooling about the only way to get more? Or am I just sitting right below the threshold of my RAM or mobo? Funny thing is if I lower it back down to 3.33Ghz I can set HT link to 2000mhz and it ends up at about the same NB clock, so maybe it's the NB and not the RAM holding it back. Raising voltage seems to have very little effect on overclockability, as well.

Oh and here's the data in the requested format in case you want to add it:

Username: adrenatek
Stepping: 2
Revision: DA-C2
CPU: ATHLON II X2 245
CPU Clock: 3480
HTT Clock: 240
CPU Multiplier: 14.5
CPU Voltage: 1.4
CPU-NB VID: 1.2
NB Clock: 2160
NB Voltage: 1.22
HT Link Frequency: 1800
RAM Speed: 800
Motherboard: Biostar A785GE
Cooler: Stock
CPU-Z Validation Link: na (validation error code 99)?

And temps, which are like room-temp currently lol


Edited by adrenatek - 2/24/16 at 9:06pm
post #1099 of 1106
If I had to guess, I'd say your OC was limited by using an older C2 chip and/or a board that may be weak for overclocking.
post #1100 of 1106
Or perhaps you were just not so luck in the silicone ne lottery :-)
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD CPUs
Overclock.net › Forums › AMD › AMD CPUs › [OFFICIAL]Athlon II X2 Regor Series OC Club