Gigabyte EX58-UD5/Extreme Discussion Thread

[DGill]

My system is Ex58-UD5 with 920 and Seasonic M12D using bios F4r because it has been working well with mild overclock - 19 x 166 - (on air so limited by CPU temperature) and don't want to risk changing to newer bios.

However, normally I always log off Vista then turn off power supply then turn off at wall socket.

Yesterday, I just shut down Vista but left power supply on. After about 8 hours, when pressing the power on button at the front of the PC the bios went into some sort of recovery mode with a message that there was a fault with overclock settings.

I've reloaded my settings and all is working again - anyone seen this before? is it bad news to leave to motherboard powered up? or is there a better bios than the F4r?

[Godmyster]

Ive been asking for about 6 or 7 posts also what is the best bios around for the UD5 atm but looks like nobody is actually reading or my posts arent getting posted...

[Jonny Manc]

Ive been asking for about 6 or 7 posts also what is the best bios around for the UD5 atm but looks like nobody is actually reading or my posts arent getting posted...

Many users are using different BIOS' cos they work for them......its a matter of reading through a few pages to gage user opinion then choose a BIOS.

I have mentioned in my recent posts that I am on f8b and it works fine, though I dont use RAID or AHCI, so I cant comment on those features.

Hope this helps

[DavyBoy]

Can't anyone help me with my previous post?????

[Lsdmeasap]

Can't anyone help me with my previous post?????

Sorry, editing. I see you found a template

Are you setting those subtimings yourself, or is that what you see for auto? I ask because what you see in the BIOS is not what is actually applied most often.

I do suggest you disable XMP, since you are setting your own multiplier and or QPI/VTT, so no need for XMP anyway. It only can cause issues, especially if you set anything else manually, and or especially if the XMP Settings are not good enough (QPI to much/too little, ect) for your CPU

Yes, Round Trip Latency should vary from channel to channel, normally it is like this
Channel 1 = x
Channel 2 = x+2
Channel 3 = x+4 (but channel 3 can sometimes be x+5 as well)

Following that you should be able to manually set things.

Keep these notes in mind from my template:

tRC ........................................ (Should be = tRAS + tRP or above for stability)

tWTR ...................................... (Must be Write to Read Delay/Same Rank - (tWL + 4)

tWL ........................................ (tWTP Must = tWR + tWL + 4)(tWL Must be CAS Latency -1)

I think you may need more tFAW but maybe not with those sticks, often close to tRC is better. Since you are running 1333 sticks now, you should be able to use less QPI/Vtt as well, depending on the BIOS you are using and all other memory settings used

[dinos22]

i would be very surprised if your board boots with the RTL settings you suggested

[DavyBoy]

Hi guys,

Thanks for the replies..

I have actually tried to disable XMP profile, but nothing seems to work...

Also about the sub timings, I have tried leaving them on auto, and then I also tried manually setting them to the values that it shows when XMP is enabled, and I also tried to loosen them up as well, but nothing works...

Even with both sets of RAM the system willnot stay stable.. I can get it to run fine 1 day, then I fire up my machine the following day with the EXACT same BIOS settings, and it will fail IBT or Prime95 after 10 minutes...

I really don't understand why this is happening, I have tried just about everything possible, and nothing seems to work...

It is highly frustrating, especially when I come on here and read about all you guys hitting 4+GHz with very similar systems to me, yet I cannot get my rig to stay stable @ stock settings!!!

I RMA'd the processor, and the mobo, and the techs who tested them said that they were fine... Although they weren't thoroughly tested, the CPU ran small FFT's for 3 hours, and also 32bit Linpack in OCCT for 3 hours, and the mobo was tested with Prime95 Blend Test overnight...

But like I said, there have been several occasions that I have managed to get it to run P95 Blend overnight, and successfully run 20 passes of IBT with max stress...

And also the whole deal I had with the first DIMM channel dying on me (this was the reason I RMA'd the board) and then when the techs at Scan tested it, it picked up all of their RAM, but when the board got returned to me, I reset the CMOS, and installed my hardware, booted it up and it was still only seeing 2 out of 3 sticks of RAM... so I removed my Dominator 1600MHz RAM, and installed my XMS3 3GB set, and gave the stick in the first white slot a gentle wiggle from side to side, and then fired up my system, and all 3 sticks were recognized!!!

This to me sounds as though the mobo is flaky... But the problems are so intermittent that when the techs tested the board for the short period of time they had it, they never managed to pick up on these issues that I experience...

I thought that I had it stable with my 1333MHz RAM, but again, I fired up the rig the following day, and all of the crashes came back...

I am getting another UD5 hopefully by the end of this week, so I will have another mobo to test my gear on... fingers crossed all of these problems disappear with the new mobo, then that will confirm that my current board is the cause of my problems...


I forgot to list my full system specs..

CPU: D0 i920

MOBO: EX58 UD5

RAM: 6GB Corsair Dominators, and 3GB Corsair XMS3

GFX: Asus GTX280

PSU: Be Quiet! Dark Power Pro 850w

HDD: 3 x SAMSUNG SATAII

ODD: 1 x DVD ReWriter

CASE: Silverstone TJ10-WMV nVidia Edition

And I use F7 BIOS, but have also tested F5, F6, and the latest beta BIOS (F8b??)

I have tested the system with 3 different GFX cards, 2 different PSU's, and 2 sets of RAM, and every single configuration gives the exact same results...

F7 BIOS seems to be the best BIOS for me, as every other one I have tried has crashed more frequently...

@Dinos22, what do you mean you doubt that my board would boot with the RTL settings I mentioned????

[DavyBoy]

Sorry, editing. I see you found a template

Are you setting those subtimings yourself, or is that what you see for auto? I ask because what you see in the BIOS is not what is actually applied most often.

I do suggest you disable XMP, since you are setting your own multiplier and or QPI/VTT, so no need for XMP anyway. It only can cause issues, especially if you set anything else manually, and or especially if the XMP Settings are not good enough (QPI to much/too little, ect) for your CPU

Yes, Round Trip Latency should vary from channel to channel, normally it is like this
Channel 1 = x
Channel 2 = x+2
Channel 3 = x+4 (but channel 3 can sometimes be x+5 as well)

Following that you should be able to manually set things.

Keep these notes in mind from my template:

tRC ........................................ (Should be = tRAS + tRP or above for stability)

tWTR ...................................... (Must be Write to Read Delay/Same Rank - (tWL + 4)

tWL ........................................ (tWTP Must = tWR + tWL + 4)(tWL Must be CAS Latency -1)

I think you may need more tFAW but maybe not with those sticks, often close to tRC is better. Since you are running 1333 sticks now, you should be able to use less QPI/Vtt as well, depending on the BIOS you are using and all other memory settings used

This is the post I was referring to,,,


::edit:

Well, I just tested what Lsd said above about RTL, and what do you know, my system has now posted with the full 6GB!!

I don't understand this, it used to recognize all 6GB before by leaving the RAM timings on Auto and XMP enabled.. so why would it now need me to manually set RTL???

I am now going to try some stress testing with the RAM at 1600MHz and CPU @ 4GHz to see if it is stable or not...