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Cant get past 4.5 Ghz watercooled?

post #1 of 7
Thread Starter 
hey guys so i was trying ytesterday to overclock my cpu all day! and it would not budge stable after 4.5 ghz maybe i think i was doing somethign wrong ... heres what i did

for 4.8ghz i set the vcore fo the cpu @ 1.47500 (+0.100v on my 990FXA-UD3) nothing (i didnt wanna go 'higher' in voltage risking higher temps)
llc = high
disabeld all the cool and quiet c1e c6 and ect turbo disabled.

i noticed somethign weird, when ir an programs like IBT my cpu speed goes up and down from 4.5Ghz to 2.9Ghz and back up again changes multi from 22 to 14.5 also im watercooled with pushpull rs240, right now im sitting at 4.4ghz with 1.375v which i dont mind i just wanted to push it a lil just for fun am i forgetting to do something else? i prefer to o/c with just multi instead of fsb
post #2 of 7
Hi.
Did you set the power options in Windows to Best performance?
   
Frappenstein
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Frappenstein
(12 items)
 
CPUMotherboardGraphicsRAM
Phenom ii x4 965 BE GA-MA-790FXT-UD5P Sapphire R9 290 Tri-x OC Kingston Value RAM 
RAMHard DriveHard DriveOptical Drive
Kingston Value RAM Seagate Barracuda (Died) WD Caviar Black Sony DVD/RW 
Optical DriveCoolingOSMonitor
Sony DVD/RW Xigmatec Aegir SD128264 Win 7 Home Premium 64 bit LG 2443T 
PowerCase
ThermalTake Toughpower 800 (Non modular) ThermalTake Eureka 
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Pentium 4 1.7Ghz Northwood Gigabyte GA-8ITX Creative GeForce3 Ti 500 Some generic Samsung 512Mb 
Hard DriveOptical DriveCoolingOS
Hitachi 80 Gb Plextor CD-DVD RW  What was that again? Windows 98 SE  
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15'' CRT Broken Yes,it has. Fridge 
MouseMouse PadAudio
In the lab for exeriments  To disect the mouse Audigy 3 
CPUMotherboardGraphicsRAM
5930k ASUS Rampage V Extreme Sapphire R9 290 Ripjaws V 2400MHz  
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Intel 750 Series 400GB WD Caviar Black 1 Tb H-100i Win 7 64 bit Ultimate 
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post #3 of 7
Thread Starter 
that i did not do tongue.gif but what about the overclockng
post #4 of 7
It looks like you're on the right track. I would go into the BIOS and give the PLL a boost. Try 2.6volts for now. What does your voltage go to under load? I've found that ultra high is the best llc setting.
The Beast
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post #5 of 7
Core frequency fluctuation may be due to APM (Application Power Management) in BIOS which is enabled by default, Have you tried stress testing after disabling it ?
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post #6 of 7
Like they said, turn off APM too. Turn off everything in the BIOS that looks like it saves money or electricity basically. Set windows to high performance mode.

If your still throttling under load, its a known issue with the UD3, especially revision 3.0.

Have a look at the last 10 pages or so of this thread: 990FXA Owners Thread

Most of the time, if all the settings are correct and your still throttling, its because the VRM's are overheating.
    
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post #7 of 7
Quote:
Originally Posted by Baskt_Case View Post

Like they said, turn off APM too. Turn off everything in the BIOS that looks like it saves money or electricity basically. Set windows to high performance mode.

If your still throttling under load, its a known issue with the UD3, especially revision 3.0.

Have a look at the last 10 pages or so of this thread: 990FXA Owners Thread

Most of the time, if all the settings are correct and your still throttling, its because the VRM's are overheating.

Indeed my UD3 was a POS... I had a ram cooler over my vrms just to keep it running... at a wimpy 3.8 on a 960T...
able to oc it 4.6 with the additional 2 cores unlocked on my extreme 4..
I ended up getting a refund and buying the extreme 4 after it was still happening after an RMA(new board)
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New(old) build
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Fedora KDE for everything else.  Yamakasi catleap q270 Gamdias hermes ultimate  EVGA G2 750 
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