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post #11 of 13
Err... what did you mean about DFIs being picky on PSUs?? I was thinking of getting a DFI as well.. Please explain it to a hardeware semi-n00b.... heh...
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post #12 of 13
Thread Starter 
Quote:
Originally Posted by MadCatMk2 View Post
Err... what did you mean about DFIs being picky on PSUs?? I was thinking of getting a DFI as well.. Please explain it to a hardeware semi-n00b.... heh...
The thing was that some DFI mobos might not mix well with certain PSUs. You can check the link above and the DFI street to see a larga number of PSU that have been testing and are working with the DFIs.
Centurion
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Centurion
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post #13 of 13
Thread Starter 
Hello again.

Last night I finaly managed to tweak a little my new rig and here's what I found: without many problems I managed to OC to 300HTT on stock multi!!!

But here's how it went:

At the begining I lowered the ram speed to 533, as the corsair value mems seem to work better with low freq and tight timings.
Lowered the HT multi to 3x just to be sure it's not gonna get in my way.

After 10 minutes I achieved 250 HTT I didn't rush it or anything, but from my previous OCs I "felt" it's stable enough to jump from 200 to 220, 235 and 250. Lowered the DDR speed to 400 (sync with the CPU) and I tightened the timings to 2T- 3-3-3-9 @2.0V This was already DDR500

I tested with OCCT and it was rock stable. The CPU @stock voltage 1.35V C'n'Q disabled was after 30mn of burning @ 38-39°

Oh well, moving on, I tried 260, then 270. Here was the first catch. I had to pump up some Vcore up to 1.4V to stabilize it above this freq. I ran occt for stability and 3Dmark 2003, 3Dmark 2005 and Aquamark3. Results:
Stock (HTT200):
  • 3Dmark 2003 - 8400
  • 3Dmark 2005 - 3700
  • AM3 - 47000
OC without Vcore increase (HTT 270):
  • 3Dmark 2003 - 8855
  • 3Dmark 2005 - 3863
  • AM3 - 54000
With the Vcore @ 1.4 I went up to 280, 290 and 300 totally stable. Benches:
  • 3Dmark 2003 - 9002
  • 3Dmark 2005 - 3883
  • AM3 - 57725
Throughout my OCing experiments the CPU temp remained under 40°C with the case temp ranging between 26-28°C. The chipset temp was quite high - 60°C, but it remained constant while OCing. The +12V rail stayed constant @12.02V and the +5V @5.02V measured with a multimeter.

Without any apparent reason the mobo lost stability beyond 300HTT. I haven't had the time to work it through, maybe today. Do you have any idea why?
300HTT settings: CPU@8x300=2400MHz, DDR@600 2T 5-5-5-15 @2.0V, chip voltage 1.4V, HT voltage 1.2V, HT multi 3x

I really didn't have the time to play around with the mem settings, but hey, I have it running since only yesterday.

I'll write a review on this mobo, up until now it's been great and I advice it to anyone that wants to OC and AM2 CPU but doesn't want/have to pay the marketing money for the 590SLI
Centurion
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 940 @3.3GHz 1.25V Gigabyte 790X-DS4 XFX 5850 8GB OCZ DDR2-800 
Hard DriveCoolingOSMonitor
Corsair Force 3 TRUE Win 7 Pro x64 ACER 23" TN  
PowerCase
400W Silverstone Strider Antec P182 
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Centurion
(14 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 940 @3.3GHz 1.25V Gigabyte 790X-DS4 XFX 5850 8GB OCZ DDR2-800 
Hard DriveCoolingOSMonitor
Corsair Force 3 TRUE Win 7 Pro x64 ACER 23" TN  
PowerCase
400W Silverstone Strider Antec P182 
  hide details  
Reply
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