Gigabyte EX58-UD5/Extreme Discussion Thread

[DavyBoy]

Brad, some people say that raising PCIe clock can help with higher clocks, I set my PCIe clock to 102MHz, I have managed to get my chip to 4.6GHz with 220Bclk, haven't tried for anything higher, but these boards tend to have a Bclk wall of 222MHz unless you hardmod them..

If you are handy with a soldering iron, you could PM hicookie and ask him for the hardmod instructions.

[Brad8988]

Nah i would be more than happy with 220BLCK. Just need to figure out whats holding my back and will be away

[DavyBoy]

Do you have CPU clock drive set to 800mV and PCIe clock drive to 900mV?

[Hornet331]

Well it slightly disturbs me while sleeping, since the light goes thru my upper case ventilation and reflects blue light on the wall. Not a big deal though.

Duno if i remember it correctly, but i think you can disable it via the DESA tool.

[DavyBoy]

I was wondering if anyone here is running 4.2GHz 24/7 on their UD5's?

If so, could you please share your BIOS settings with me, as I am trying to get mine stable at 4.2GHz but it keeps BSOD'ing on my a$$...

I currently have Vtt set to 1.415v, and Vcore @ 1.315v (in CPUZ), but with LLC disabled, so it drops down to 1.264v under load.

I really don't want to push Vtt much further, as I already feel 1.415v is a lot.

But I want to get this stable!!!

[Brad8988]

Im running 4.2Ghz 24/7 on air. I expect you may need more vcore unless you have a decent chip.

4.2Ghz 920 D0 LinX stable 1600Mhz.

CPU Clock Ratio [20x]

Advanced CPU Features [Press Enter]:
CPU Clock Ratio [20x]
Intel(R) Turbo Boost Tech [Enabled]
CPU Cores Enabled [All]
CPU Multi Threading [Enabled]
CPU Enhanced Halt (C1E) [Enabled]
C3/C6/C7 State Support [Disabled]
CPU Thermal Monitor [Enabled]
CPU EIST Function [Enabled]
Virtualization Technology [Disabled]
Bi-Directional PROCHOT [Disabled]

Uncore & QPI Features [Press Enter]:
QPI Link Speed [x36]
Uncore Frequency [x19]
Isonchronous Frequency [Enabled]

Advanced Clock Control [Press Enter]:
standard clock control
Base Clock (BCLK) Control [Enabled]
BCLK Frequency (MHz) [200]
PCI Express Frequency (MHz) [AUTO]
C.I.A.2 [Disabled]

advanced clock control
CPU Clock Drive [ 800mV]
PCI Express Clock Drive [ 900mV]
CPU Clock Skew [ 100ps]
IOH Clock Skew [ 0ps]

Performance Enhance [Turbo]
Extreme Memory Profile (X.M.P.) [Disabled]
System Memory Multiplier (SPD) [x8]
DRAM Timing Selectable (sPD) [Manual]

Channel A

CAS Latency Time 8 [9]
tRCD 8 [9]
tRP 8 [9]
tRAS 20 [24]

Channel B

CAS Latency Time 8 [9]
tRCD 8 [9]
tRP 8 [9]
tRAS 20 [24]

Channel C

CAS Latency Time 8 [9]
tRCD 8 [9]
tRP 8 [9]
tRAS 20 [24]


Advanced Voltage Control [Press Enter]:
Load Line Calibration [Enabled]  
CPU Vcore 1.15v [1.28750v]
QPI/VTT Voltage 1.150v [1.320v]   
CPU PLL 1.800v [1.840v]

MCH

PCIE 1.500v [1.540v]
QPI PLL 1.100v [1.140v]
IOH Core 1.100v [1.200v]
ICH I/O 1.500v [AUTO]
ICH Core 1.1v [1.200v]

DRAM

DRAM Voltage 1.500v [1.660v]
DRAM Termination 0.750v [AUTO]
Ch-A Data VRef. 0.750v [AUTO]
Ch-B Data VRef. 0.750v [AUTO]
Ch-C Data VRef. 0.750v [AUTO]
Ch-A Address VRef. 0.750v [AUTO]
Ch-B Address VRef. 0.750v [AUTO]
Ch-C Address VRef. 0.750v [AUTO]

[DavyBoy]

Cheers mate, gonna give this a blast now.

Which BIOS you on?

I'm using F9e here.

Also, what does that CPU Clock Skew do?

[rge]

I was wondering if anyone here is running 4.2GHz 24/7 on their UD5's?

If so, could you please share your BIOS settings with me, as I am trying to get mine stable at 4.2GHz but it keeps BSOD'ing on my a$$...

I currently have Vtt set to 1.415v, and Vcore @ 1.315v (in CPUZ), but with LLC disabled, so it drops down to 1.264v under load.

I really don't want to push Vtt much further, as I already feel 1.415v is a lot.

But I want to get this stable!!!

In addition to raising vcore, you might want to try lower qpi/vtt, unless you have 12 gb ram, in which case it may need to be that high. Once you get above what you need you are just adding heat and may make it less stable.

I am running 4.4 at 1.34 vcore load (1.38 bios with LLC ON and probably ~1.43 or so if had LLC off). And qpi/vtt at 1.34. dram 1.64v, rest settings dont matter on mine.

[Brad8988]

Cheers mate, gonna give this a blast now.

Which BIOS you on?

I'm using F9e here.

Also, what does that CPU Clock Skew do?

F9e here too.

[DavyBoy]

OK, I have went back to F7, as I couldn't even get my 4GHz o/c stable with F9e.

I can do 200x20 with 1.248v (CPUZ in the BIOS it's at 1.2814v or something like that)under load and Vtt at 1.335v, this is with LLC disabled btw.

But I just can't seem to get 4.2GHz stable at all, I will just have to keep tweaking I guess, as it isn't really worth me asking you guys what your BIOS settings are, because your settings aren't going to work for my chip at the end of the day.

It is really annoying, because before I tried F9e my 4.2GHz o/c was LinX stable (20 passes using all available RAM) and it was only Prime95 Blend Test I was having issues with, but I forgot to save the profile, and I can't for the life of me remember which voltages I was using.

Can anyone explain to me what that CPU Clock Skew does please?

[Zoran2]

Hello all,
First off I am not expert in overclocking so I would like that you guys check are my settings (voltages) safe for 24/7 usage.
My i7 920 is overclocked to 3,6 GHz+ TURBO BOOST and I don't want to go higher. Memory is Kingston 3x2 GB kit, 1866 MHZ. It needs 1.65 V to work at that speed. I set CPU clock ratio to 20x, and BCLK to 180. QPI Clock Ratio is x 36 so I get 6,48GHz QPI speed. I set CPU Vcore to 1.27500V in bios, QPI/Vtt Voltage to 1.335V. IOH core is at 1.120V, DRAM Voltage is 1.660V so that BIOS see 1.650V. CPU PLL is 1.840V, ICH Core is at 1.140V.
I have finished LinX 0.6.3. times x50 with maximum memory usage with no errors, maximum teperature reported with real temp is 80C.
I am interested are my settings safe for usage and is there something else i need to do, lower Voltages , atc...
Im am very grateful in advance for your responses, and sorry for my english

[DavyBoy]

Hello all,
First off I am not expert in overclocking so I would like that you guys check are my settings (voltages) safe for 24/7 usage.
My i7 920 is overclocked to 3,6 GHz+ TURBO BOOST and I don't want to go higher. Memory is Kingston 3x2 GB kit, 1866 MHZ. It needs 1.65 V to work at that speed. I set CPU clock ratio to 20x, and BCLK to 180. QPI Clock Ratio is x 36 so I get 6,48GHz QPI speed. I set CPU Vcore to 1.27500V in bios, QPI/Vtt Voltage to 1.335V. IOH core is at 1.120V, DRAM Voltage is 1.660V so that BIOS see 1.650V. CPU PLL is 1.840V, ICH Core is at 1.140V.
I have finished LinX 0.6.3. times x50 with maximum memory usage with no errors, maximum teperature reported with real temp is 80C.
I am interested are my settings safe for usage and is there something else i need to do, lower Voltages , atc...
Im am very grateful in advance for your responses, and sorry for my english

Hi there,

Are you using a D0 or C0 i920?

If you have D0 I would say that your Vcore is a little on the high side for 3.8GHz.

Although no 2 chips are the same, I can do 3.8GHz stable with only 1.200v Vcore, 1.225v QPI/Vtt, and the rest on stock.

I could probably get the Vcore lower tbh, but I never bothered playing with the BIOS settings at 3.8GHz as I wanted to get 4GHz stable.

I can do 4GHz with 1.248v Vcore and 1.255v QPI.

You should try lowering your Vcore to 1.2500v and then test with LinX or Prime95 to see if you can get it stable with less voltage.

The voltages you are using are perfectly fine for 24/7 usage, but like I said, you could propably get them lower with a bit of tweaking.

Or you could even leave them where they are, but just bump your Bclk up to 191 which will give you a 4GHz o/c instead of 3.8GHz, I know you said you didn't want to go any higher, but if your chip can do it, then it would be worth it imo...

[cardnut99668]

cardnut9968, which version of CPUZ are you using?

When your system is POST'ing, how much RAM does it say is installed?

Press tab on the Gigabyte splash screen to see the POST details.

Also, if you go into task manager, then on the performance tab, how much does it say for the total physical memory installed?

I had an issue a while back where my system was only seeing 4GB of RAM instead of 6GB, both the Windows Basic Info and CPUZ said that I had 6GB, but when I checked the BIOS, POST info, and Performance tab in Task Manager, they all reported only 4GB...

If you update to the very latest version of CPUZ (1.52.2) it will tell you if your system is only seeing 4GB..

I updated to the latest CPU-Z and I still have the same issue. Both the post and task manager see 6gb, but I still can't see the spd tab in slot 5. All the sticks are clean in memtest too. I guess this weekend I'll try swapping the slots of two of them and see if I encounter the same issue.

[DavyBoy]

Hmmm, I don't know what would be causing this mate..

However, if your system is passing memtest, and all 6GB is being seen in Task Manager, then this must only be an issue with CPUz, so it isn't really anything to worry about.

Which RAM are you using again?

[GBinFukdOver]

i7 940 2.93@4.4Ghz,Corsair Dominator 6Gb 1866@2100Mhz 9-9-9-24 c2,Gigabyte GA-EX58 Extreme, 2x WD Raptor Raid 0, GTX 280 SLI Core 602@650,Shader,1296@1401,Mem 2214@2360, Thermaltake 1200w PSU,Vista x64, Heavily Modified Tj06 case. Waterblocks EK LT CPU, EK NB,SB and Mosfets, 18W Laing + Res,240 Stealth Rad = CPU, 120 Stealth = Chipset. 8hr Prime Stable, CPU 210BCLK 21x Multi No HT,VCore 1.42,IOH 1.3, DDR 1.65,QPI 1.595 A little high i no but stable and cool, CPU Temps 24oC idle, Prime Max 41oC,Cores Mx 71oC. Most Stable and best board ive had or ever worked on and thats a lot of X58's he he WELL DONE GIGABYTE. I no ppl will comment that these voltages are to high but its been fine for 3mths now 24/7 usage and well if the chip does die happens gives me an excuse to get another to the misses. All of the above was f7 bios its now on beta f9d and to be honest wat cpu temps wer the problem i wasnt experiencing any and this bios is exactly the same no diff in settings watsoever

[Zoran2]

Hi there,

Are you using a D0 or C0 i920?

If you have D0 I would say that your Vcore is a little on the high side for 3.8GHz.

Although no 2 chips are the same, I can do 3.8GHz stable with only 1.200v Vcore, 1.225v QPI/Vtt, and the rest on stock.

I could probably get the Vcore lower tbh, but I never bothered playing with the BIOS settings at 3.8GHz as I wanted to get 4GHz stable.

I can do 4GHz with 1.248v Vcore and 1.255v QPI.

You should try lowering your Vcore to 1.2500v and then test with LinX or Prime95 to see if you can get it stable with less voltage.

The voltages you are using are perfectly fine for 24/7 usage, but like I said, you could propably get them lower with a bit of tweaking.

Or you could even leave them where they are, but just bump your Bclk up to 191 which will give you a 4GHz o/c instead of 3.8GHz, I know you said you didn't want to go any higher, but if your chip can do it, then it would be worth it imo...

Hey m8, thx for your answer.
My CPU is D0.
I llowerd Vcore to 1.2500v in bios and test it and it is stable. I think that i need to have QPI/Vtt Voltage at 1.335V because if I set it lower my machine won't boot. Are my other voltages ok, i raised them just by +1 in bios? And I really don't need more to overclock, im am satisfied with this. I managed to get 4,2 GHz with high voltages just for test..

[GBinFukdOver]

i7 940 2.93@4.4Ghz,Corsair Dominator 6Gb 1866@2100Mhz 9-9-9-24 c2,Gigabyte GA-EX58 Extreme, 2x WD Raptor Raid 0, GTX 280 SLI Core 602@650,Shader,1296@1401,Mem 2214@2360, Thermaltake 1200w PSU,Vista x64, Heavily Modified Tj06 case. Waterblocks EK LT CPU, EK NB,SB and Mosfets, 18W Laing + Res,240 Stealth Rad = CPU, 120 Stealth = Chipset. 8hr Prime Stable, CPU 210BCLK 21x Multi No HT,VCore 1.42,IOH 1.3, DDR 1.65,QPI 1.595 A little high i no but stable and cool, CPU Temps 24oC idle, Prime Max 41oC,Cores Mx 71oC. Most Stable and best board ive had or ever worked on and thats a lot of X58's he he WELL DONE GIGABYTE. I no ppl will comment that these voltages are to high but its been fine for 3mths now 24/7 usage and well if the chip does die happens gives me an excuse to get another to the misses. All of the above was f7 bios its now on beta f9d and to be honest wat cpu temps wer the problem i wasnt experiencing any and this bios is exactly the same no diff in settings watsoever

I see that a lot of ppl have got some nice overclocks with a lot lower voltages i no the DO steping is a lot better for voltages. Im not to happy with my qpi as it is a little high although the corsair dominater profile sets it to 1.615 so i shouldnt think itd be much of an issue only time will tell i suppose. And it will not boot at any lower qpi with the ram so high either but hell its fast. I dont suppose any1 nos of any failures yet at these voltages?

[jcool]

Guys,

need some help here. Long story short, I need a proper subtiming template to get 12GB Samsung HCF0 to run at 1900Mhz 9-9-9-24 on a EX58-Extreme (using F9d or F9e or whatever the latest bios on the GB hp is as of today). With subtimings on auto it only sees 6GB at POST regardless of VTT and Vdimm (I have tried anthing between 1,35-1,5V VTT and 1,6-1,8V Vdimm). At 1,5V VTT it doesn't even post.

Note that I have a 48h prime/LinX stable setting with 191x21, 10x dram, the w3520@1,175V and 6GB HCF0@1,68V 1900 C9-9-9-24 1T.

After messing with the subtimings at random I got it to show 8GB at post, but no more. Reducing BCLK to 180 (=1800Mhz ram) I see the full 12GB.

However this is a special review system, and it needs to run 12GB at exactly that setting, 190x21 with 10x dram divider and 12GB. I don't really understand the subtiming correlations and did I mention I HATE SUBTIMINGS

Any help appreciated.

[DavyBoy]

All of the above was f7 bios its now on beta f9d and to be honest wat cpu temps wer the problem i wasnt experiencing any and this bios is exactly the same no diff in settings watsoever

No difference between F7 and F9d??

There are lots of differences in these BIOS'es, there are more settings in the Advanced RAM timings section of this BIOS, I personally hated F9d, I tried it a few days ago, and I couldn't even get 4GHz stable without using really high Vcore and Vtt, so I went back to F7 again, and things are perfect, stable at 4.2GHz now.

[RCG_Bex]

Loving my UD4P - still using the BIOS it came with F4/6?

i7 920 D0 - 20x205 with TB ON - 1.264v after v-droop (~1.29v real)



~Bex

[radaja]

looks like the UD4P might be a good choice too.
ive been debating on what i should get.maybe
ill try the UD4P?

[Shocky]

Hi guys, My motherboard seems to require an unusually high QPI/Vtt to reach 191, in fact it needs 1.450V just for 191*21, tried lowering memory and multipler but it's just unstable whenever I lower the QPI/VTT at 191, and any higher it just bluescreens even with 1.450V QPI/VTT.

What other settings can I raise to help increase BCLK or have I just got a crap board?

[DavyBoy]

Nice o/c Bex, what you using for cooling, you have really good temps.

You on water?

Hi guys, My motherboard seems to require an unusually high QPI/Vtt to reach 191, in fact it needs 1.450V just for 191*21, tried lowering memory and multipler but it's just unstable whenever I lower the QPI/VTT at 191, and any higher it just bluescreens even with 1.450V QPI/VTT.

What other settings can I raise to help increase BCLK or have I just got a crap board?

That does seem really high QPI voltage mate, though I wouldn't say it's the mobos fault, you probably have a poor chip..

What do you have Vcore set to?

Do you have CPU Clock drive set to 900mV and PCIe clock drive set to 800mV?

[Shocky]

My vcore is set to 1.312, are you saying then vtt varies depending on the cpu not the motherboard... Interesting. will have to check bios for other settings, but there set to whatever the f9d bios has as default i believe.

[DavyBoy]

Yes QPI/Vtt is dependant on the chip and not the mobo, it is responsible for providing voltage to the processors IMC and the uncore, so obviously it is going to be CPU dependant.