Gigabyte EP45T-UD3P random freeze

[Thebunny]

Hi,
I just bought a new system and it is killing me ever since.
The PC is Freezing randomly. No blue screen and no pattern( like only in games or in certain applications). Sometimes it freezes with a strange sound in the speakers or with no power to my usb mouse. It can run for a whole day or it can freeze 10 times in one hour.

I tried the PSU on another PC it is ok
I tested the ram (8 hours memtest) ok
I tried to change the Videocard... same freezes
I tested the HDD with Wd diagnostics and other software... ok

The only weird thing that can be mentioned is the +12v. In ET6 and in BIOS it appears correctly. In everest, PC wizzard and Speedfan does not go past 2v

Please help me because i am out of ideas and it's such an annoing problem from a new system

My specs:
Mainboard : Gigabyte EP45T-UD3P
Chipset : Intel P45
Processor : Intel Core 2 Duo E8500 @ 3166 MHz
Physical Memory : 4096 MB (2 x 2048 DDR3-SDRAM )
Video Card : Gainward ATI Radeon HD 4850 1GB Golden Sample
Hard Disk : WDC (640 GB)
PSU: CorsairTX 650 W

Thx in advance

[VorLonUK]

Re: Gigabyte EP45T-UD3P random freeze

What are you running your DDR3 at, voltage and frequency wise?

What OS are you using?

[Thebunny]

Re: Gigabyte EP45T-UD3P random freeze

hy

My DDR3 is running at 667Mhz at 1.5v i think
I am using Windows XP pro.

But I hope i'm having some breakthrough here. I just realized that i have a memory that is not supported by the motherboard. at least that is what i understand...
my memory
http://www.ec.kingston.com/ecom/co [...] K2/4G&id=2

My motherboard
http://www.gigabyte.com.tw/Product [...] uctID=2936

The motherboard supported memory list:
http://www.gigabyte.com.tw/FileLis [...] t-ud3p.pdf

Is it possible that the system freezes can ocurr if my motherboard does not support the memory?

Thx in advance.

[VorLonUK]

Re: Gigabyte EP45T-UD3P random freeze

Often, memory isn't listed on the manufacturers QVL list. However that probably says more towards they didn't get a chance to test it with other brands, rather than your memory being unsuitable.

In most cases, more fine adjustment in the bios is required for some memory products.

For starters,
I suggest you run at least 1 pass of memtest Memtest86+ - Advanced Memory Diagnostic Tool
Download the zipped up ISO file, unzip and burn the Image to a CDr/w etc. Make sure your Cd/dvd drive is the first bootable device in the bios

[bizland]

Re: Gigabyte EP45T-UD3P random freeze

Bunny I wish I saw your post before I would have just made my new one here. I crash with the same board also. When I was running Rivatuner and graphics my Local Video Memory and Video Memory, my 512 card was asking for 720mb!

Run rivatuner in the background monitoring your Video Memory and Local Video memory. :D! Please, you are the only other post i've found with this board

Only crashes on certain games but I get patterns and skewd textures

[Comers]

Re: Gigabyte EP45T-UD3P random freeze

Thebunny,
I've exactly the same CPU and RAM and got the same random freezes.
It is NOT even overclocked.
My graphics - Gainward 8800GT later changed to XFX 9600GT (no stability with both)
HDD Samsung 160GB + 400GB both in simple IDE mode, 1 SATA Optiarc 7200S DVD burner plus 1 IDE Plextor PX-708A DVD burner.
Looks like our GA-EP45T-UD3P board is very unpopular. I've got it RMAed but it was
returned back as being ok. None of the BIOSes from v.F2 to v.F6 works with the default settings (Optimized of Fail-Safe). I've set performace level to Standard, PCI-e frequency to 100MHz. MCH voltage to 1.2 - 1.3V, DDR voltage to 1.5V but no stability. In fact I was able to stabilize it somehow with the above settings for 2 weeks but the problem came back to bite me :(
Memtest (latest) never failed and Prime95 (latest) was ok running for 5-6 hours!
Isn't it funny. So I thought the PSU is failing (CoolerMaster RealPower 850W) but
was tested OK on another PC. Got rid of the UPS just in case - no luck.
Naturally I went after the DDR3 (Kingston ValueRAM KVR1333N3D9 2x2GB 1333MHz
9-9-9-24 1.5V - manufactured by Elpida).
Looks like the BIOS picks up all timings right on auto - they're exactly as per specs.
BUT the voltage is always set to 1.76V (so reported in BIOS PC Health and in Everest 5.00). Any attemt to manually set it to 1.5V is simply ignored in the BIOS.
I mean it retains the setting DDR Core Voltage = 1.5V but gives 1.76V nevertheless.
This RAM is supposed to run at 1.5V only!
And yes I've flashed many times using QFlash with clearing DMI data, loading Optimized defaults + save and rebooted before first boot to Windows XP SP3.
Because I'm nowhere near stability with this board and RAM the only last thing to do is to ask: HTF to make DDR core voltage 1.5V to stick?

[Comers]

Re: Gigabyte EP45T-UD3P random freeze

Sorry forgot to mention my CPU is Intel Core 2 Quad Q9550 rev.E0 @ 2.83MHz
and it's working fine on another system.

[Comers]

Re: Gigabyte EP45T-UD3P random freeze

Thebunny,
Did you check your DDR core voltage? Maybe I've found the culprit after all.
Looks like the newest BIOS F6 downloaded from here AND NOT F6A downloaded from GB's site has addressed the issue. Now 1.5V holds steady. I've immediately noticed some stability improvement and will do long Prime95 run. That DDR3 overvoltage to 1.76V probably was ok for PC under stress testing, but introduced instability in idle!
Thinking of that - almost all the time these freezes occur while I'm not doing anything on the PC. That could explain why memtest & prime95 do not fail !!!
Furthermore I've seen video encoder frozen right on between encoding passes and that's the time when the load drops and then boom - freeze.

[Lsdmeasap]

Re: Gigabyte EP45T-UD3P random freeze

Any luck yet TheBunny?

If not, please give me your exact full settings, and a link to your memory, so I can see if anything looks out of the ordinary

This is Just a template I use to ask people their settings, pay no attention to the numbers in it, replace with yours

[b][u]MB Intelligent Tweaker(M.I.T.)[/u][/b]
Robust Graphics Booster ...............: Auto or Fast
CPU Clock Ratio ..........................: 
Fine CPU Clock Ratio.....................:.0
CPU Frequency ...........................: 


[b][u]Clock Chip Control [/u][/b]
[b][u]Standard Clock Control[/u][/b]
CPU Host Clock Control..................: [Enabled] 
CPU Host Frequency (Mhz) ............: Mhz
[B]PCI Express Frequency (Mhz) .........:Set to 100[/B]

C.I.A.2 .................................:[Disabled]


[b][u]Advanced Clock Control [Press Enter][/u][/b]
CPU Clock Drive...........................: <<< 800
PCI Express Clock Drive.................: <<< 900
CPU Clock Skew (ps)....................: <<< 
MCH Clock Skew (ps)...................: <<< 


[b][u]DRAM Performance Control[/u][/b][u][/u]
[B]Performance Enhance...................: [STANDARD][/B]
Extreme Memory Profile (X.M.P.).....: Disabled
(G)MCH Frequency Latch...............: [Auto]
System Memory Multiplier ..............: 
Memory Frequency (Mhz) ..............: 
DRAM Timing Selectable ................: [Manual]

[b]Standard Timing Control[/b]
CAS Latency Time........................
tRCD .........................................
tRP'...........................................
tRAS..........................................

Set all Suggested below to highest Values first.  Then later you can lower, one at a time, testing as you go

[b][u]Advanced Timing Control[/u][/b]
tRRD...........................................
tWTR..........................................
tWR............................................
tRFC...........................................
tRTP...........................................
Command Rate (CMD) ....................:2

[u][b]Driving Strength Profiles[/b][/u][b][/b]
Driving Strength ............................

[b]Channel A[/b]
Static tRead Value.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH
 tRD Phase0 Adjustment...................:Auto <<< Leave for all below as well
tRD Phase1 Adjustment...................:Auto
 tRD Phase2 Adjustment .................:Auto
 tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto 
Twr2wr(Different Rank)...................:Auto 
Twr2rd(Different Rank)...................:Auto 
Trd2wr(Same/Diff Rank)..................:Auto 
Dimm1 Clock Skew Control...............:Auto  ps
Dimm2 Clock Skew Control...............:Auto  ps

[b]Channel B[/b]
Static tRead Value.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH
 tRD Phase0 Adjustment...................:Auto <<< Leave for all below as well
tRD Phase1 Adjustment...................:Auto
 tRD Phase2 Adjustment .................:Auto
 tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto 
Twr2wr(Different Rank)...................:Auto 
Twr2rd(Different Rank)...................:Auto 
Trd2wr(Same/Diff Rank)..................:Auto 
Dimm1 Clock Skew Control...............:Auto  ps
Dimm2 Clock Skew Control...............:Auto  ps

[b][U]Motherboard Voltage Control[/U][/b][U][/U]
Voltage Type.………... Manual
[b]CPU[/b]
CPU Vcore….……….........................:Auto if not overclocking, if you are overclocking please do find and set your own voltages

CPU Termination…..... 1.200V*.......: << If overclocking Please set to stock, Auto overvolts this way to much.  Optimal range for overclock would be 1.2-1.5 depending on Vcore, try to keep at least .1 under vcore.  Auto is fine if not overclocking

CPU PLL…………………....1.500V*.......: << If overclocking Please set to stock, Auto overvolts this way to much.  Optimal range for overclock would be 1.5-1.65.  Auto is fine if not overclocking

CPU Referen.…………....0.755V*.......: <<< .64% Of Vtt (Termination above) Auto Will set this correctly 

CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above) Auto Will set this correctly 

[b]MCH/ICH[/b]
MCH Core…………….....1.100V...........: << 
MCH Reference….…….0.800V...........; <<< Leave
MCH/DRAM Ref.…......0.900V...........: <<< Leave
ICH I/O……………….....1.550V............: <<< Leave
ICH Core…………...……1.100V............: <<< Leave

[b]DRAM[/b]
DRAM Voltage ……....1.800V............: 
DRAM Termination .…0.900V............: <<< Leave
Channel A Reference 0.900V............: <<< Leave
Channel B Reference 0.900V............: <<< Leave

[b][U]Advanced Settings[/U][/b][U][/U]
Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Enabled]
CPU Enhanced Halt (C1E)................: [Disabled]
C2/C2E State Support....................: [Disabled]
x C4/C4E State Support..................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.........................: [Disabled]
Virtualization Technology................: [Disabled] Enabled if you use Vmware/Virtual PC

[b][U]Integrated Peripherals[/U][/b][U][/U]
Legacy USB Storage Detect ..............[Disabled] *Note* Must be enabled to flash from USB