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Thuban OC Settings - LLC Vs CPU Current Capacity - Advise? (For 24/7 OC)

post #1 of 5
Thread Starter 
Hi all been happy running my Thuban (1045T) at 4.0Ghz 1.380vcore for around half a year now, but idle temperatures and constant 1.380 has been bothering me. I know it isn't high, but the lower the better.

I have been wondering if anyone can clear up something for me, or even tried it out.

My general setting is
1.375vcore
LLC: High (50%)
CPU/NB 2672mhz @ 1.150v

Can anyone explain the CPU current capacity etc on the ASUS boards? I am running a stress test now (hasn't been going long, that's why I am writing quick before it caps out tongue.gif) but I have it now at 1.320vcore (I would laugh if this turns out stable) with CPU current capacity at 140%. Usually at 4.0Ghz it would freeze instantly, so basically, what will this do for an OC rather than traditional up the vcore and up the LLC to compensate.

At the moment it isn't even throttling.

Would a higher CPU current capacity be damaging, or will it help reduce my vcore?

I heard it's something to do with the amount of current each core can use or something, better or worse for overclocking basically? Thanks all smile.gif

M5A97 PRO
Silver Arrow
8GB Corsair XMS 1600Mhz
PHII X6 1045T


EDIT: I just manually quite prime for now, because I have some important files open I wouldn't like to lose tongue.gif will try this out again very soon to see what kind of results I can get from it.
Edited by mikeo01 - 5/14/13 at 12:06pm
post #2 of 5
1.375v is really nice. hope it is stable for you.
"CPU Current Capability is the total power current available to the CPU cores"
Quote:
CPU Current Capability
This Item provides wider total power range for overclocking. A higher value brings a wider total power range and extends the overclocking frequency range simultaneously

100% = CPU maker spec [stock]

AMD Bulldozer and Piledriver Overclocking Guide - Asus Motherboard
http://www.overclock.net/t/1348623/amd-bulldozer-and-piledriver-overclocking-guide-asus-motherboard

[under] DIGI+ Power Control & CPU Configuration
Quote:
CPU Current Capability - Sets the Maximum Current Support. Recommended 130% for 143A
CPU/NB Current Capability - Sets the Maximum Current Support. Recommended 130%
Note: Raising the Maximum Current Support does not make the CPU draw more Current. It just allows it to scale properly with voltage, to prevent Overvolting. Watts = Volts x Amps

Wiki: The AM3+ Socket offers improved power regulation and power quality specifications, including an increased maximum current support of 145 A versus 110 A.



[VDDA is the same as intel PLL]
VDDA 2.50v - you can try 2.6-2.7v in between each vcore bump.


for 24/7 I keep my cpu current capacity at 120%
You might want to bump up your CPU-NB to at 2800-3000.
It give a nice increase in performance. CPU-NB up to 1.35v is safe for 24/7 oc.
AK 1045
(14 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Phenom II X6 1045T 95W TDP GABYTE GA-MA790X-UD4P AM3/AM2+ AMD 790X+SB750 1... MSI Radeon 5850 PowerColor Radeon 5850 
RAMHard DriveHard DriveCooling
Crucial Ballistix Tracer (D9GMH) PC2-6400 800MH... OCZ Agility 3 120GB RAID-0 Samsung Spinpoint F3 HD103SJ 200GB Scythe Mugen 2 with dual Scythe SFF21F Fans (Pu... 
MonitorPowerCaseMouse
ASUS VW266H Black 25.5" 2ms(GTG) 1920x1200 Corsair 750TX 750W  CM HAF932 Logitech G5 
AudioAudio
ASUS XONAR DG with Heaphone amp > Sennheiser HD... 2x100 watt Class D amp 2x100 watt > Miller & Kr... 
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AK 1045
(14 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Phenom II X6 1045T 95W TDP GABYTE GA-MA790X-UD4P AM3/AM2+ AMD 790X+SB750 1... MSI Radeon 5850 PowerColor Radeon 5850 
RAMHard DriveHard DriveCooling
Crucial Ballistix Tracer (D9GMH) PC2-6400 800MH... OCZ Agility 3 120GB RAID-0 Samsung Spinpoint F3 HD103SJ 200GB Scythe Mugen 2 with dual Scythe SFF21F Fans (Pu... 
MonitorPowerCaseMouse
ASUS VW266H Black 25.5" 2ms(GTG) 1920x1200 Corsair 750TX 750W  CM HAF932 Logitech G5 
AudioAudio
ASUS XONAR DG with Heaphone amp > Sennheiser HD... 2x100 watt Class D amp 2x100 watt > Miller & Kr... 
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post #3 of 5
Thread Starter 
Hi thanks for the post smile.gif

The description about the current capacity really helped, I guess having it higher will definitely help my overclock.

My CPU/NB is 1.150v at 2600mhz. I will see if I can increase that.


Right now (been testing for around 40 minutes) here are my settings:

296 HTT (3999Mhz)
792Mhz DRAM
2672Mhz CPU/NB @ 1.150v

CPU vcore 1.320 (this is under load) with LLC turned to ultra high, CPU current capacity 130%.


Will wait and see, if 1.320v turns out stable that is unbelievable.

EDIT: 1.320v unstable, 1.332v been running for about an hour now.
Edited by mikeo01 - 5/15/13 at 12:08pm
post #4 of 5
even your 1.380v sounds good to me.
what was you stock vcore (VID)

my 95W 1045t has a VID 1.250v
AK 1045
(14 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Phenom II X6 1045T 95W TDP GABYTE GA-MA790X-UD4P AM3/AM2+ AMD 790X+SB750 1... MSI Radeon 5850 PowerColor Radeon 5850 
RAMHard DriveHard DriveCooling
Crucial Ballistix Tracer (D9GMH) PC2-6400 800MH... OCZ Agility 3 120GB RAID-0 Samsung Spinpoint F3 HD103SJ 200GB Scythe Mugen 2 with dual Scythe SFF21F Fans (Pu... 
MonitorPowerCaseMouse
ASUS VW266H Black 25.5" 2ms(GTG) 1920x1200 Corsair 750TX 750W  CM HAF932 Logitech G5 
AudioAudio
ASUS XONAR DG with Heaphone amp > Sennheiser HD... 2x100 watt Class D amp 2x100 watt > Miller & Kr... 
  hide details  
Reply
AK 1045
(14 items)
 
  
CPUMotherboardGraphicsGraphics
AMD Phenom II X6 1045T 95W TDP GABYTE GA-MA790X-UD4P AM3/AM2+ AMD 790X+SB750 1... MSI Radeon 5850 PowerColor Radeon 5850 
RAMHard DriveHard DriveCooling
Crucial Ballistix Tracer (D9GMH) PC2-6400 800MH... OCZ Agility 3 120GB RAID-0 Samsung Spinpoint F3 HD103SJ 200GB Scythe Mugen 2 with dual Scythe SFF21F Fans (Pu... 
MonitorPowerCaseMouse
ASUS VW266H Black 25.5" 2ms(GTG) 1920x1200 Corsair 750TX 750W  CM HAF932 Logitech G5 
AudioAudio
ASUS XONAR DG with Heaphone amp > Sennheiser HD... 2x100 watt Class D amp 2x100 watt > Miller & Kr... 
  hide details  
Reply
post #5 of 5
Thread Starter 
1.380 isn't bad but temperature at idle is worrying.

1.332 seems like a sweet point at the moment for my 4.0Ghz OC, CPU current capacity really did help.


EDIT:
My stock VID is 1.2-1.224 load
1.248-1.284

That's with turbo enabled that's why it flucuates so much
Edited by mikeo01 - 5/15/13 at 12:57pm
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