4GHz i7 920 D0, but only on 19x

paradisiac said:
no not yet :( its still on x6.0 as when i go up to x8.0 it becomes unstable, so not sure if there is another setting that needs tweaking with it?
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the_electrician said:
have been reading on other forums the uncore freq should be x2ram freq + 2 for greater stability
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so .. let me get this straight.. shall I put my ram multiplier to 6 x and set the timings or leave them on auto .. and then do the oc of the cpu with vcore at 1.30000 and then work my way down only on the vcore whils leaving the QPI/VTT coltage 1.295v, IOH Core 1.16V, DRAM Voltage 1.640v?

say I got it to load to windows at 1.30000 do I do prime 95 or drop and then keep dropping the vcore or do i do prime 95 for an hour on every time I drop the vcore? thanks
 
mkohman said:
so .. let me get this straight.. shall I put my ram multiplier to 6 x and set the timings or leave them on auto .. and then do the oc of the cpu with vcore at 1.30000 and then work my way down only on the vcore whils leaving the QPI/VTT coltage 1.295v, IOH Core 1.16V, DRAM Voltage 1.640v?
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the best thing with ram is to go in low to make sure it doesnt effect the stability, trying to go too high will compromise an accurate stability test.

mkohman said:
say I got it to load to windows at 1.30000 do I do prime 95 or drop and then keep dropping the vcore or do i do prime 95 for an hour on every time I drop the vcore? thanks
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i normally start at 1.3v and load into windows, do a 30-45min OCCT test, then lower it again, do another 30-45min test with OCCT until i hit unstability. then i go back to my last stable setting and do an 8hour OCCT test, if that fails then up it a bit more until i do get an 8hour OCCT without errors. then i normally spend an hour or 2 playing some games and doing a bit of video work to make sure its stable doing what i do, then maybe a 3dmark 06 and vantage test. once all those are done then im pretty sure its stable so i either leave it, or go for more, although 4GHz is as high as i will try. once you are happy its stable, then start doing some ram settings, remembering before booting into windows do the memtest86+ scans, as i have in the past corrupt windows by trying to boot with an unstable oc.
 
hmmm .. well I am even more confused now lol .. so I when I first start out shall I have my vdimm volts still as high as 1.64? or lower and also at what stage do I boot the memtest86+ scans? after every tweak?
 
mkohman said:
hmmm .. well I am even more confused now lol .. so I when I first start out shall I have my vdimm volts still as high as 1.64? or lower and also at what stage do I boot the memtest86+ scans? after every tweak?
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well ram is a personal thing, if you are unsure, set the ram up as the sticker states, then do a memtest86+ if that passes ok, do your cpu overclock and run memtest86+ again, if it still passes, then thats it, no more memtest86+ scans. if it fails, then lower the ram settings until it passes memtest86+. personally i prefer to get the cpu sorted first as the max oc will effect the ram possibilites.
 
paradisiac said:
hmmm might give that a go tomorrow then. i only have the options of x6.0, x8.0, x10.0.....
so with my 19x211 setup, i only have a choice of 1266, 1688 or 2110MHz
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did you update your bios to the latest FE release?
As i found the latest version allowed me to lower my vcore and qpi to get a stable overclock that wasnt achievable on the previos bios.
 
The settings I used for 4ghz stable on the UD5. Using an appropriate unclock multiplier helps considerably, with ram at x8 I found x16 to be best, with ram at x6, I think x15 works out better. Certainly it's worth varying this value between (ram multi x2) and a few integers higher to see what works for you.

Stable settings
4ghz with 6gb of 1600mhz ram
Code: 
200x20, turbo off, HT on
6gb v3.2 @ 1600c8
vcore 1.3
qpi 1.295
vdimm 1.64
Code: 
[u]Advanced cpu features[/u]
[b]Clock ratio 20[/b]
Turbo disabled
Cores enabled all
Multi-threading enabled
Enhanced halt (C1E) disabled
C3/C6/C7 state support disabled
CPU thermal monitor enabled
CPU eist function disabled
Virtualization tech enabled
Bi-directional prochot enabled

QPI link speed x36
Uncore frequency x16
Isochronous support enabled

[u]Advanced clock control[/u]
[b]BCLK 200[/b]
PCIe 100
CIA2 disabled
CPU clock drive 700mV
PCIe clock drive 700mV
CPU clock skew 0ps
IOH clock skew 0ps

[u]Ram[/u]
Performance enhance standard
XMP profile1
System memory multiplier 8
DRAM timing auto (8-8-8-24-2)

[u]Advanced voltage control[/u]
Load-line calibration disabled
CPU vcore 1.3
QPI/VTT voltage 1.295
CPU PLL 1.8
PCIe 1.5
QPI pll 1.1
IOH core 1.1
ICH I/O 1.5
ICH core 1.1
DRAM voltage 1.64
DRAM termination/vrefs auto


4.4ghz settings, 15 passes ibt stable.
Code: 
210x21, turbo on, HT on
12gb v3.2+v2.1 @ 1200c8
vcore 1.4375
qpi 1.375
vdimm 1.70
Code: 
[u]Advanced cpu features[/u]
[b]Clock ratio 20[/b]
Turbo enabled
Cores enabled all
Multi-threading enabled
Enhanced halt (C1E) disabled
C3/C6/C7 state support disabled
CPU thermal monitor disabled
CPU eist function disabled
Virtualization tech enabled
Bi-directional prochot enabled

QPI link speed x36
Uncore frequency x16
Isochronous support enabled

[u]Advanced clock control[/u]
[b]BCLK 210[/b]
PCIe 102
CIA2 disabled
CPU clock drive 800mV
PCIe clock drive 800mV
CPU clock skew 0ps
IOH clock skew 0ps

[u]Ram[/u]
Performance enhance standard
XMP off
System memory multiplier 6
DRAM timing (8-8-8-24-2)
tRFC set to 100 on each channel

[u]Advanced voltage control[/u]
Load-line calibration disabled
CPU vcore 1.4375
QPI/VTT voltage 1.375
CPU PLL 1.7
PCIe 1.5
QPI pll 1.1
IOH core 1.14
ICH I/O 1.5
ICH core 1.1
DRAM voltage 1.70
DRAM termination/vrefs auto

I'll try for 4.4 completely stable when my board gets back from rma.
 
jon, this is only the second time ive read/seen the gigabyte x58 settings, as you know im an asus user, the gigabyte bios seems a bit cluttered, maybe its just that im so used to asus, but it seems the asus bios is better layed out. But the gigabyte is still a very good clocking board, just that it seems a bit strange to me menu/setting wise.
 
JonJ678 said:
The settings I used for 4ghz stable on the UD5. Using an appropriate unclock multiplier helps considerably, with ram at x8 I found x16 to be best, with ram at x6, I think x15 works out better. Certainly it's worth varying this value between (ram multi x2) and a few integers higher to see what works for you.



I'll try for 4.4 completely stable when my board gets back from rma.
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Sorry to hear about the board mate, hope you get it sorted quickly:)
 
I initially disliked the Gigabyte bios, having come from Asus, but it's grown on me. There's a page with basic settings on, bsck, vcore, qpi voltage etc. I suspect most people never tread beyond this.

It then contains a number of sub headings. such as Advanced voltage control with a ludicrous number of settings. If it was all on one page it would be bewildering, but as it stands basic overclocking is done on the main page, and if you want to tweak a given area, e.g. ram, there's another page dedicated to it. Since you don't often tweak more than one sub menu at a time it's more convenient than it looks, and since there is duplication (e.g. vcore shows up on the first page and under advanced voltage control) you don't have to hop back and forth if extensively changing a subsection.

It looks very different to Asus, but I wouldn't like to say which layout I prefer now.

Cheers man. I'm glad it's going to Gigabyte and not to Asus, though apprehensive as it's my first rma to them. Hopefully I'll be able to report back that it went well.
 
Aye, had a look at another guys setings on the x58ud5, interesting reading, as ive never used a gigabyte board. Multipliers for ram, uncore etc are dealt with differently compared to the asus boards, im sure as you know from the p45 p5q's, memory speeds on the asus boards are simply displayed as speeds you can pick on the drop down menu. Hope you get your board back soon mate, my gtx 280 rma has turned ino a bloody disaster, got my 8800gt in, not a bad wee card but it lacks the muscle of the gtx 280, limited by the 512mb of ram on it.
 
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