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Gigabyte EP45-UD3 Series Owners Guide - Page 2024

post #20231 of 21186
Is it ok to enable Extreme Memory Profile? Does it provide a performance increase? after enabling that it shows me 1600 next to the memory settings instead of the usual 1333.

over here i mean-
Memory Frequency (Mhz) 1333 [ 1600]

after enabling it, it shows me
Memory Frequency (Mhz) 1600 [ 1600 ]
Edited by chip94 - 7/31/11 at 6:25am
:D
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:D
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post #20232 of 21186
Quote:
Originally Posted by NoGuru View Post
I don't follow the new hardware all that much but they are saying that Ivy will have almost 50% increase over the 990X in speeds. Now if that is true, I will pick one up if the price is right.
The quad-channel DDR3 has my interest piqued!
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post #20233 of 21186
Quote:
Originally Posted by alancsalt View Post
Oh there Mayan(t) be anything happening......
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post #20234 of 21186
I am very exited that Ivy will be on Socket 1155 first.
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post #20235 of 21186
Anybody still rocking this board?
I'm having some issues trying to go higher on my OC.
Im currently at 500Mhz FSB x 8.5= 4.25Ghz with:
CPU vcore: 1.328v under load
CPU term: 1.46v
CPU ref: synced with term
CPU PLL: 1.65v
CPU skew: 50ps
MCH skew: 100ps
MCH vcore: 1.4v
RAM: 2.1v under load

I'm trying to hit 4.33Ghz (510Mhz FSB) but it seems that it really doesn't like it .

Went from 1.375v vcore to 1.4v vcore in bios, coupled with 1.52v CPU term, 1.69v PLL and 1.44v MCH and it worked for a couple of minutes under p95 but it froze and had to hard reset from PSU.
Anything lower on the CPU term voltage and it'll fail even faster.
Tried MCH voltage at 1.48v ... didn't help. vcore doesn't seem to be the problem because when it fails it fails because of CPU term (it seems)

SO, what I'm gonna try next time when I go for 4.33Ghz, is up the CPU term to 1.56v and CPU vcore a couple of steps just to rule it out.

Any 775 veterans that know what I'm talking about here can give me some insight on their OC experience with this setup?
1.56v seems a little high for CPU term.
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post #20236 of 21186
Quote:
I am very exited that Ivy will be on Socket 1155 first.
Same, and hopefully the initial Extreme chips wont be too much wallet rape.
   
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post #20237 of 21186
Quote:
Anybody still rocking this board?
I'm having some issues trying to go higher on my OC.
Im currently at 500Mhz FSB x 8.5= 4.25Ghz with:
CPU vcore: 1.328v under load
CPU term: 1.46v
CPU ref: synced with term
CPU PLL: 1.65v
CPU skew: 50ps
MCH skew: 100ps
MCH vcore: 1.4v
RAM: 2.1v under load

I'm trying to hit 4.33Ghz (510Mhz FSB) but it seems that it really doesn't like it .

Went from 1.375v vcore to 1.4v vcore in bios, coupled with 1.52v CPU term, 1.69v PLL and 1.44v MCH and it worked for a couple of minutes under p95 but it froze and had to hard reset from PSU.
Anything lower on the CPU term voltage and it'll fail even faster.
Tried MCH voltage at 1.48v ... didn't help. vcore doesn't seem to be the problem because when it fails it fails because of CPU term (it seems)

SO, what I'm gonna try next time when I go for 4.33Ghz, is up the CPU term to 1.56v and CPU vcore a couple of steps just to rule it out.

Any 775 veterans that know what I'm talking about here can give me some insight on their OC experience with this setup?
1.56v seems a little high for CPU term.
Will you do us a favor and fill out this form;

http://www.overclock.net/attachments....-template.xls

It will make helping you easier.
   
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LGA2011 - SERVER
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(1) Neutron GTX 240GB LSI M5015 w/ BBU (8) Force GT 120GB - Raid 5 WH14NS40 
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MonitorKeyboardPowerCase
(3) ASUS PB236Q Roccat Isku FX Antec HCP 1200 800D 
MouseMouse PadAudioAudio
Roccat Kone XTD Propus 380 (2) KRK Rokit 8 G2 (2) KRK Rokit 5 G2 
Audio
KRK Rokit 10S 
CPUMotherboardGraphicsRAM
Pentium D GA-8i945GMF EVGA GTX 580 SC OCZ Reaper - rev. 2 
Hard DriveOptical DriveCoolingOS
Western Digital 1TB 2.5" LG DVD-R Corsair H100i 7 Ultimate 
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Custom Mod Corsair C70 Army Green Roccat Lua Mionix Propus 380 
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Sound Blaster ZxR 
CPUMotherboardGraphicsRAM
3930K : L241C090 RIV Gene (2) EVGA GTX 580 (4) BLT2KIT4G3D1869DT2TXRG (Red LED) 
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post #20238 of 21186
Thread Starter 
Quote:
Originally Posted by Cryptedvick View Post
Anybody still rocking this board?
I'm having some issues trying to go higher on my OC.
Im currently at 500Mhz FSB x 8.5= 4.25Ghz with:
CPU vcore: 1.328v under load
CPU term: 1.46v
CPU ref: synced with term
CPU PLL: 1.65v
CPU skew: 50ps
MCH skew: 100ps
MCH vcore: 1.4v
RAM: 2.1v under load

I'm trying to hit 4.33Ghz (510Mhz FSB) but it seems that it really doesn't like it .

Went from 1.375v vcore to 1.4v vcore in bios, coupled with 1.52v CPU term, 1.69v PLL and 1.44v MCH and it worked for a couple of minutes under p95 but it froze and had to hard reset from PSU.
Anything lower on the CPU term voltage and it'll fail even faster.
Tried MCH voltage at 1.48v ... didn't help. vcore doesn't seem to be the problem because when it fails it fails because of CPU term (it seems)

SO, what I'm gonna try next time when I go for 4.33Ghz, is up the CPU term to 1.56v and CPU vcore a couple of steps just to rule it out.

Any 775 veterans that know what I'm talking about here can give me some insight on their OC experience with this setup?
1.56v seems a little high for CPU term.
It sounds like you have done your testing right already. I'm willing to bet it's heat that's holding you back at this point (even with the Ultra Kaze's).

Only combinations to really fine tune is Skews and Ref's. There is a magnitude of combo's to go through.
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post #20239 of 21186
Quote:
Originally Posted by chip94 View Post
Is it ok to enable Extreme Memory Profile? Does it provide a performance increase? after enabling that it shows me 1600 next to the memory settings instead of the usual 1333.

over here i mean-
Memory Frequency (Mhz) 1333 [ 1600]

after enabling it, it shows me
Memory Frequency (Mhz) 1600 [ 1600 ]
Yes i would enable it.
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post #20240 of 21186
Quote:
Originally Posted by NoGuru View Post
It sounds like you have done your testing right already. I'm willing to bet it's heat that's holding you back at this point (even with the Ultra Kaze's).

Only combinations to really fine tune is Skews and Ref's. There is a magnitude of combo's to go through.
Sorry I forgot to mention.
Today was a colder day so I was able to get decent temps when stress testing (~65c in prime blend and 72c small ffts). Heat wasn't an issue as far as P95 went .

About skews, I have no idea how to even start with those. I just read that if I have over 480Mhz FSB I should bump CPU skew to 50 and MCH skew to 100 (Think I've read it in this thread somewhere).

Fiddling with CPU term voltage got me stable at 500Mhz/4.25Ghz so far and as soon as I went from 1.48v (already an increase from 1.46 that I'm using for sig oc) to 1.52v on it I could do a couple of mins of blend test. (which is the one that mostly failed when I was IBT and small fft stable).
However, I've always kept ref voltage synced with termination voltage. Thats how its supposed to be AFAIK.
Should I independently increase ref voltage and try keeping CPU term voltage as low as possible? Because I already am pretty high on the term voltage and it still froze. (1.52v for 510Mhz FSB)
Its kind of weird that it needs such a huge bump for only 10Mhz.
What kind of skew settings should I try?
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