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Thread: Fickle re start behaviour on GA-EP45 UD3R




  1. #1
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    Default Fickle re start behaviour on GA-EP45 UD3R

    Hi,
    Thanks for the useful forums. I learned how to test my PSU tonight.

    Anyways I have the GA-EP45-UD3R rev 1.1 bios F12 board with the following:
    q6600 @ 2.4ghz never oc'd
    4 x 1 gb memory sticks DDR2-6400 Samsung and some other brand.
    Nvidia 8800GTX 768mb,
    Enermax Liberty 550watt PSU.
    1 x Seagate 640gb HDD
    system normally runs 24/7

    Here is the problem: System is running fine. System gets shutdown/powered off. Then when I try to restart 30 seconds later it is completely dead. No lights on mb. Nothing, no fan twitches etc. I then remove a few USB cables and it sometimes starts. Sometimes I remove all the USB and ethernet cables and still no luck. I then open case and short out power switch pins on mb. Sometimes it starts other times it doesnt. When I remove the board from case it starts every time. My wife doesnt like using her computer with no case... then there is her cats... a caseless system is just not an option. LOL There is no extra standoffs under the mb etc. Nothing to short out the mb. I checked the power supply by jumping the "power on" lead to ground and it started every time. I have reset bios, removed cmos battery, tested with one stick of ram. I have done all the suggested troubleshooting ad nauseum and still no solution. It's my first Gigabyte build so any advice would be appreciated. My previous 20 builds were Asus boards with no issues and this one has me scratching my head. Hopefully someone can end this frustration??

  2. #2
    kick's Avatar
    kick is offline Senior Member
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    Default Re: Fickle re start behaviour on GA-EP45 UD3R

    Load and save optimised defaults.

    1.
    mixed memory is never ideal:
    Even when running at rated speeds the minor timings will probably be a compromise.
    Give it 1.9-2.0v in bios.
    2.
    Allways runs and restarts out of the case>>>.
    If that is 100% definite and you have all the components connected:
    There are like 3 possibilities.

    a.Connections in and out of the case are slightly different,make sure they are all vertical(cables not bent to the side or stretched etc).
    Wiring up a psu so the fan spins or so it powers up a 12v fan doesnt tell you its working properly and distributing the voltages evenly under load.
    You need a meter for that or occt testing to ensure voltages are within limits.

    b.There may still be a short with case flxing, or connections may move slightly.Place a sheet of v thin cardboard behind the mbrd (with suitable cutouts for the standoffs).
    Tighten things up and use as normal. If the problem persists check the cardboard if u take the mbrd out again, make sure there are no indentations from solder points etc.

    c.Temperature: Mbrd and components out of the case are going to remain cooler than inside.
    Since you arent overclocking this shouldnt be a problem,but perhaps the "mixed memory" becomes quite warm from residual heat from cpu ,mch etc, when the fans turn off.
    So when you turn the pc back on again the components are warmer than they would be in normal operation.
    Give the memory a little voltage boost as above.Perhaps even a little mch voltage boost.
    Also make sure filtration is working well. Cat hairs would provide heat insulation or mess up fan spin up times if they got in there.
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

  3. #3
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    Default Re: Fickle re start behaviour on GA-EP45 UD3R

    Hi Kick,

    Thanks for taking time to reply.
    1. I am trying to fix this restart issue before I go and shell out for 4 x 2gb sticks of G-Skill memory. The system does run fine once it starts up and has never blue screened.

    2a The 24 pin power and the 4 pin power both attach to motherboard vertically so there is no side loads. I know the power supply could have other issues but I was wanting to see if it was giving the MB any power at all. When system is off there is no lit LED's or other indications of power to the MB. In Speedtest 4.41 the voltages are as follows:
    vcore1 = 1.14
    vcore2 = 1.90
    +3.3v = 3.34
    +5v = 5.11
    +12 = 0.38v This doesn't make sense. Can a system even run this way??? I am going to get my multimeter and doublecheck it this morning.
    -12v = -16.72
    -5v = -8.43
    5v = 5.16
    Vbat = 3.2

    2b. THe case is a Thermaltake Scorpio and is very solid feeling. I have never felt it flexing when I was handling it. I like your idea about the cardboard. I have looked on the back of the mb for solder points with issues but did not see any problems.

    2c. The case has 2 fans pulling air in from front and then 1 fan exhausting out the back. Temps from Speedtest 4.41 are:
    GPU = 64c
    Temp1 = 44c
    Temp2 = 25c
    Core0 = 23c
    Core1 = 22c
    Core2 =21c
    Core3 = 21c

    Ambient room temp is 18c. I routinely clean all fans, heat sinks and psu with compressed oxygen. I have not seen any cat hair in computer at this point. The problem was happening before we got the cats so they are out of the equation.

  4. #4
    Chike is offline Senior Member
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    Default Re: Fickle re start behaviour on GA-EP45 UD3R

    vcore2 is ram voltage.
    maybe there is some short from the side of the case around the I/O panel?

  5. #5
    kick's Avatar
    kick is offline Senior Member
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    Default Re: Fickle re start behaviour on GA-EP45 UD3R

    On my hdd boot up I use speedfan 4.41(too lazy to get the new one)

    When I use the ssd i have 4.42 they both read 12v incorrectly.
    I get the correct values under load from either everest or whatever its called now, or OCCT.
    OCCT will give you all the voltages correctly (at least on my board) and if you do a say 20 min cpu test it will give you graphical representations of voltages under load + noise and ripple.
    I wouldnt use the occt psu test unless you really want to burn your pc hard.

    Temp1 is the system sensor temp readout
    Temp 2 is the main cpu temp sensor readout.
    You can rename those if you wish.

    There is no direct reading nb or sb temp(I use proprietary temp probes for those + an aftermarket nb cooler ,xigmatech porter)

    system temp of 44 seems a little high on a standard clock machine,then again the temp sensor is somewhere close to your gx card so could be picking heat up from there.

    At present Im not running my rig as I have it in my sig.
    Im underclocking compared to what I usually use but thats for 8Gb and the ssd makes things so much faster.

    If there is no short on the l/O as suggested by chilke.

    Do memory test passes at full operating temperature using memtest.
    If the memory passes ok with no errors and the problem is still there.
    Bump your memory voltage in bios up to 2.0V and your mch voltage up to 1.24V

    Yes they are voltages in excess of what you would normally need ,but if it cures the reboot problem(if high residual internal temps are the cause) the voltages arent like dangerous.

    For example Im at present running 2x2gb gskill 6400 memory jn slots 1+3 and 2x2gb of samsung 5300 memory in slots 2+4
    all 4 sticks are at ddr2 800mhz at 5-5-5-15 timings.
    The gskills on their own could run 4-4-4-12 at 1.90v ,but if i just had those in Id be running them at over 900mhz anyway.

    The point is to run the mixed memory at 800mhz i need 2.16v in bios(2.0D multiplier pl 9),its overkill for the gskills but the samsung 667mhz stuff needs it and its totally stable.
    Nb there are articles out there showing the samsung memory clocking to 800-820mhz but beyond that it doesnt work.
    2.16 v in itself isnt bad for ddr2 memory either if you need it,above 2.2 is where memory life may be reduced.
    Im not sure what your mixed memory is but the 2.0v could be just what you need if there is a slight heat problem.

    for interest at 400 cpu ref (1600 fsb) cpu =3.2ghz cpu v=1.30
    cpu temp at idle 27c cores 0 and 1 31C.Cores 2 and 3 have stuck sensors,wont go below 40C, they will go higher tho.
    System temp idle 30C
    sb temp=31C(sensor)
    nb/mch temp=28C (sensor)fan 2200rpm
    gskill stick 1=32C sensor)
    gskill stick 2=35C (sensor)
    gx card vrm temps=35C {sensor)
    gpu temp=27C
    intake fan (gentle typhoon) 1600rpm
    exhaust fan (akasa 120 low noise)1400 rpm
    pci slot fan ,unknown but regulated at about 75%
    cpu fan 1150 at idle, goes to max of 2100 approx.


    nb on shelling out on 8gb of gskill ddr2 memory,I cant bring myself to buy 2 2x2 gb sticks of it cos its so expensive now compared to what it was and the newer intel cpus/mbrds all seem to be going for ddr3 whether its used in triple channel or not.
    Last edited by kick; 01-14-2011 at 02:18 AM.
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

  6. #6
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    Default Re: Fickle re start behaviour on GA-EP45 UD3R

    I removed Speedtest and installed OCCT. The 12v voltage now reads in the right range. I ran lintest for 6minutes. none of the voltages fluctuated more than a couple hundredths of a volt and ripple was .06. The cpu temps went up to 45c for 2 cores and 50c for the other 2 cores. System temp remained the same at 44c so I think that it is heating from the gpu.

    I had already removed the back panel shield as I thought it might be grounding the mb. Yesterday when I was trying to get system started I was repeatedly pressing power button on case while simultaneously removing USB cables. I had removed most of the USB cables when it decided to suddenly start. Has been running steady ever since.

  7. #7
    profJim's Avatar
    profJim is offline Chief Munchkin + moderator
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    Default Re: Fickle re start behaviour on GA-EP45 UD3R

    Glad to hear that you seem to have solved the problem.
    What were the various usb cables connected to?
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  8. #8
    rbmorse is offline Junior Member
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    Default Re: Fickle re start behaviour on GA-EP45 UD3R

    Sometimes the switch in the case goes bad.

    It's a simple spst momentary contact switch, if you can reach the header pins on the motherboard where the power switch connects you can remove the berg connector that goes to the switch and momentarily short the contacts with a small screw driver or something similar. Otherwise, you can disconnect the power switch from the motherboard header and connect the reset switch to the power switch header and use that to see if the machine's behavior changes.

  9. #9
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Fickle re start behaviour on GA-EP45 UD3R

    So did you narrow it down to one of the USB Cables?

    Be sure when you are connecting USB Cables that you plug them into USB and not firewire :)

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    Default Re: Fickle re start behaviour on GA-EP45 UD3R

    I dont think the problem is solved yet as I have not tried to shut it down and start it. The wife has a bunch of work to do so she wants it to stay running until she is done. It runs fine once running, although it did do a sudden crash yesterday. Not even a blue screen, just went into post and restarted. Its the first time that has happened.

    It has done this start up problem since the first day. The first thing I did in troubleshooting is to jump the MB header power switch pins.

    USB cables are connected to:
    Logitech MX510 mouse
    Wacom Bamboo Tablet
    USB hub
    HP Laserjet 1022
    Primera LX400 Label Printer
    Datacolor Syder3Elite
    Canon EOS 5 Mk 2 - not connected for start up.

    I will check the USB cables and see if there is any cuts or slices.

    The computer beeps at me every time I plug in a USB cable.

    I try not to let the smoke out of the computer if I can. ;^)

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