I don't know, I think a lot of these Brisbane chips kind of hit a wall at 2.8 Ghz. If you get past it, nice one, but I'm sitting completely stable at 2.75 Ghz with only one bump up on Vcore. But I just tried 295*9.5 (only 5 HTT up), and it fails Orthos after 10 minutes. And 300*9.5 is a definite no-go for me, even with a massive vcore boost, I've tried all the way up to 1.425 in BIOS and it will barely boot, or else it'll BSOD after not too long.
I set up some fan's inside my case for better airflow. I think my CPU is hotter than normal because of the inferno that is an 8800 GTS right beneath my CPU cooler. But with a 120mm fan blowing right on the video card and out the back of the case, I got the idle temps down from ~75 to 63C, and load temps down from ~85 to ~75-78, not bad eh? I also have another 120mm fan blowing down from right in between my power supply and optical drives onto the ram and feeding the CPU cooler. That actually brought my temps down some too. My CPU used to idle at like 45C, now it idles at 35-38... load was over 60C, now it stays below 60C. I think I'm going to leave everything as-is now, I'm pretty happy with it.
Even overclocked my EVGA 8800GTS from 513/1584 to 620/1880, definitely the most I've ever been able to OC a video card. This computer runs everything real nice now
I'm surprised, even if I'm in a game or something I can alt+tab out and have it practially minimize like any other program... I used to have to wait like 30 seconds to 2 minutes on my old 3000+ if I did that!
This board is pretty sweet...I am pretty convinced that it's still ram related...
Most all Brisbanes will hit 3G's easily with the right ram or tweaking...Honestly I am just not smart enough without spending a couple hours to days using memtest on #5 and testing each and every setting to see which one will give me a little bit more...
This is my 1st AM2 box and it's been quite fun...
definately doesnt clock as easy as my DFI sli-dr board...but then again I used a modded bios that relaxed all the ram timings in the right place (bios made by OCZ workers) it was awesome...I hit 3G's in less than 4 hours then all I had to do was run Orthos 10hrs...
Just the little tweaking I did to the ram let me hit 265x10.5 for over 12hrs of Orthos...
at 250x10.5 @ 1.3v temps never hit higher than 31c during a 12 hour run of Orthos....
at 265x10.5 @ 1.325v temps were usually around 29c but I seen very quick spikes up to 36c
Funnyperson1, Dr_Bowtie, thanks for your comments and insight to my questions.
For anyone interested, here are the results of my attempt at the vdimm mod.
First of all everything went smoothly enough, it is very simple after all. I tried 4 different resistors, and checked the bios with each one to find the voltage. here are the results by resistance.
5.6k ohm = 1.98v
4.7k ohm = 2.00v
3.9k ohm = 2.02v
3.3k ohm = 2.05v
I would have tried a 3k ohm resistor as the vdimm mod guide recommended, but the Radio Shacks I went to didn't carry them. According to that guide, a 3k ohm resistor would have gotten about 2.4 volts, but I only have 2.05 at 3.3k ohms. Must be some differences between the rev 1.xx that was used in that guide, and my rev 1.3.
For everyone that has gotten a successful overclock of more than, say, 2400mhz. I'm currently running a Thermaltake 430 watt model. What worries me is that is only has a 1 12v rail capable of 18 amps. I'm running 1 DVDRW, 3 seagate sata drives, firewire pci card and 2 additional case fans.
-------------------- 3600 Brisbane @ 2914 (9.5 x 306) Biostar Tforce 550SE Wintec Ampx DDR2-800 @ 833 (5,5,5,16) Asus Radeon 1600 Pro (passive cooling) Zalman 9500 Posts: 41 | From: US | Registered: Mar 2007
Sounds a little lite. 24-26 Amps or higher would be better. But, that said, if your not having any problems, your probably OK. The problems would manifest themselves in cold boot issues and start up type of problems. Also random shutdowns can happen to a under powered system...
-------------------- Too Many Computers,... Too Little Time ..... Com'on ???..! Posts: 27985 | From: Fire Island, NY | Registered: Feb 2003
I have the OEM version of it (the Enhance 5150GH) and I am very happy with it. Its quiet, efficient (80%+), and it delivers every single Watt out of the 500 its rated for (Two 18A 12V rails for a total of 36A).
There is nothing that you could put in the TForce550 that would stretch this power supply. Really it would only struggle if you wanted to have 8800s in SLI, but then again there aren't really any sub $100 PSUs that could handle that load reliably.
Thats the first pic of a TForce550 I have seen with the VCore mosfet sink in place. If thats yours it can't hurt to have them there. If yours doesn't have them, I wouldn't sweat it too much, the VCore mosfets on these TForce550 boards don't really get warm enough to require heatsinks.
So has anyone come to any sort of conclusion about using multipliers in the bios? Is there a bios that will allow this or are we S.O.L. I've tried 2 different bios versions, the RH 207 being the current one, and neither has allowed changing the multipliers.
I've heard of some with different boards using the X2 3600 being able to change the multis, but I don't recall hearing of anyone being able to do this with the T550 board.
If I am wrong and someone out there has been successful using the multis on this board, please correct me. Thanks.
BTW, For anyone curious, the final stable, everyday settings I've come up with for this setup are:
300HTT x3 (1800 Mhz) 9.5 multi (auto) = 2.85Ghz CPU speed DDR815 4 4 4 10 2T (memclk 533 in bios = divider of 7) Vcore @1.35 volts vdimm @2.1 volts (Vdimm mod didn't get me any more volts) all other voltages on auto
Memtest, and 10 hours Orthos stable
Nothing new here I know, but still I'd call it another success story for this board/chip combo