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Old 04-17-09   #531 (permalink)
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Quote:
Originally Posted by Josh81 View Post
I'm having problems..

Whenever I do BLEND in prime95 i get a rounding error nearly instantly (like 2 seconds in)

i have run small fft for 6 hours successfully and i just turned it off after that..

what does a rounding error mean? someone told me it might be because my ram is overclocked to get 1:1? my ram voltage is 2.1
failing large ffts mostly you need to bump your MCH core
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Q9550 @ 4.03GHz [475x8.5] 1.23v		 Motherboard
Gigabyte UD3R		 Memory
4GB Mushkin XP2 8500 		Graphics Card
HD4890
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Old 04-17-09   #532 (permalink)
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Originally Posted by aquax View Post
failing large ffts mostly you need to bump your MCH core
ah, mine is only at 1.26 atm
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Old 04-17-09   #533 (permalink)
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bump it to 1.30v, don't use less than 1.30v man for 4ghz
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Q9550 @ 4.03GHz [475x8.5] 1.23v		 Motherboard
Gigabyte UD3R		 Memory
4GB Mushkin XP2 8500 		Graphics Card
HD4890
Hard Drive
WD 640GB		 Power Supply
HX620		 Case
Chieftec Mesh Series
CPU cooling
TRUE120		 OS
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Old 04-17-09   #534 (permalink)
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Quote:
Originally Posted by aquax View Post
bump it to 1.30v, don't use less than 1.30v man for 4ghz
thanks that did it


you're running 4.0 @ 1.264 GHZ?


i got a rounding error when I tried that voltage, i'm going to try it again right now though


edit

WTH : >_>

I turn the voltage from 1.3 to 1.297 and now the voltage is 1.23 in cpu-z, it should be 1.264

Edit 2 : 1.216 in prime95...what i think LLC turned itself off or something

amazingly prime95 is still running, if i can get it stable at 1.21 load i'm gonna **** my pants
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System: Main
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Q9550@ 4.0		 Motherboard
GIGABYTE EP45-UD3R		 Memory
4 GB G. Skill @ 940 		Graphics Card
XFX 4890
Hard Drive
1 TB WD Black		 Sound Card
Asus Xonar DX & ATH-AD700		 Power Supply
600W OCZ		 Case
Antec 900
CPU cooling
Xigmatek S1283		 GPU cooling
Scythe Musashi		 OS
Vista 64 Bit		 Monitor
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Last edited by Josh81 : 04-17-09 at 08:19 PM
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Old 04-17-09   #535 (permalink)
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Quote:
Originally Posted by Josh81 View Post
thanks that did it


you're running 4.0 @ 1.264 GHZ?


i got a rounding error when I tried that voltage, i'm going to try it again right now though


edit

WTH : >_>

I turn the voltage from 1.3 to 1.297 and now the voltage is 1.23 in cpu-z, it should be 1.264
yes, my bios set to 1.300v, CPU-Z reads 1.264v
__________________
System: My System
CPU
Q9550 @ 4.03GHz [475x8.5] 1.23v		 Motherboard
Gigabyte UD3R		 Memory
4GB Mushkin XP2 8500 		Graphics Card
HD4890
Hard Drive
WD 640GB		 Power Supply
HX620		 Case
Chieftec Mesh Series
CPU cooling
TRUE120		 OS
Vista Ultimate X64
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Old 04-17-09   #536 (permalink)
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Quote:
Originally Posted by aquax View Post
yes, my bios set to 1.300v, CPU-Z reads 1.264v
im running prime95 right now @ 1.216 V, and it's still going..lets hope its stable rofl

dropped my load temps 4 degrees too
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Q9550@ 4.0		 Motherboard
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4 GB G. Skill @ 940 		Graphics Card
XFX 4890
Hard Drive
1 TB WD Black		 Sound Card
Asus Xonar DX & ATH-AD700		 Power Supply
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Xigmatek S1283		 GPU cooling
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Old 04-17-09   #537 (permalink)
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that's really nice, keep it going
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Gigabyte UD3R		 Memory
4GB Mushkin XP2 8500 		Graphics Card
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WD 640GB		 Power Supply
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Old 04-17-09   #538 (permalink)
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why you don't run LinX to catch system stability faster, better than waiting 6 hours to check if your OC is stable or not?
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CPU
Q9550 @ 4.03GHz [475x8.5] 1.23v		 Motherboard
Gigabyte UD3R		 Memory
4GB Mushkin XP2 8500 		Graphics Card
HD4890
Hard Drive
WD 640GB		 Power Supply
HX620		 Case
Chieftec Mesh Series
CPU cooling
TRUE120		 OS
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Old 04-17-09   #539 (permalink)
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Quote:
Originally Posted by aquax View Post
why you don't run LinX to catch system stability faster, better than waiting 6 hours to check if your OC is stable or not?
i've never tried linx,i'll download it now

how many runs?
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4 GB G. Skill @ 940 		Graphics Card
XFX 4890
Hard Drive
1 TB WD Black		 Sound Card
Asus Xonar DX & ATH-AD700		 Power Supply
600W OCZ		 Case
Antec 900
CPU cooling
Xigmatek S1283		 GPU cooling
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Old 04-17-09   #540 (permalink)
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25 runs is enough to make sure you CPU is getting enough vcore. Also make sure to check "Max" so the program use all available free ram
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System: My System
CPU
Q9550 @ 4.03GHz [475x8.5] 1.23v		 Motherboard
Gigabyte UD3R		 Memory
4GB Mushkin XP2 8500 		Graphics Card
HD4890
Hard Drive
WD 640GB		 Power Supply
HX620		 Case
Chieftec Mesh Series
CPU cooling
TRUE120		 OS
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