p55M-UD2 spontaneous reboots

[SRed]

[shiarua]

Re: p55M-UD2 spontaneous reboots

id have to say its memory. try setting the memory manually at factory specs and see if that does anything. or you might just try upping the dram voltage to stabilize

[vincentmoy]

Re: p55M-UD2 spontaneous reboots

Have you tried running memtest to see if there are memory problems?

[SRed]

Re: p55M-UD2 spontaneous reboots

Yes, 20 passes and the new ram also checks out ok. I've verified the ram is on the recommended list from gigabyte as well, so it should work. The system is locking up exactly as it did before, even the keyboard lights are nonresponsive. I'm now suspicious of the motherboard.

[wazza300]

Re: p55M-UD2 spontaneous reboots

what qpi voltages are you using? auto will always overvolt so set it manually,with random reboots like your describing it sounds like a ram issue to me

[SRed]

Re: p55M-UD2 spontaneous reboots

@wazza, which voltages do you recommend? I have a feeling this may be voltage/motherboard related, as the keyboard and other USB devices become non responsive.

[wazza300]

Re: p55M-UD2 spontaneous reboots

@wazza, which voltages do you recommend? I have a feeling this may be voltage/motherboard related, as the keyboard and other USB devices become non responsive.

what are they at the moment? cpu,qpi and ram?

[SRed]

Re: p55M-UD2 spontaneous reboots

I looked up the information you recommended, but it was bizarre, the pc was stable for three days when I booted the machine without the usb mouse and keyboard plugged in to different hubs. Weird. I came back to find the pc crashed again.

All of these values are motherboard set automatically optimized defaults, my proc was an OEM and came with no instructions for voltage or anything so I left them alone. Maybe thats the problem then?

QPI Link 4.8ghz
CPU CLOCK 800mv
Pci Express clock 800 mv


Load-line Set AUTO
QPI Volt/VTT 1.100V
CPU VCore 1.3125V
PCH Core 1.050V
CPU PLL 1.800V

DVID Auto / +0.0000V

Do any of these values seem wrong for an i5-750? I have a secondary machine I can post from if you have any recommendations for me to tinker with. Thank you again, wazzaa

[wazza300]

Re: p55M-UD2 spontaneous reboots

I looked up the information you recommended, but it was bizarre, the pc was stable for three days when I booted the machine without the usb mouse and keyboard plugged in to different hubs. Weird. I came back to find the pc crashed again.

All of these values are motherboard set automatically optimized defaults, my proc was an OEM and came with no instructions for voltage or anything so I left them alone. Maybe thats the problem then?

QPI Link 4.8ghz
CPU CLOCK 800mv
Pci Express clock 800 mv


Load-line Set AUTO
QPI Volt/VTT 1.100V
CPU VCore 1.3125V
PCH Core 1.050V
CPU PLL 1.800V

DVID Auto / +0.0000V

Do any of these values seem wrong for an i5-750? I have a secondary machine I can post from if you have any recommendations for me to tinker with. Thank you again, wazzaa

your cpu voltage is a bit high for stock clocks,you could try the normal setting,also what bios are you using as the newer bios's will fix problems with usb keyboards and mice...and i would update the chipset drivers too from gigabyte website

[SRed]

Re: p55M-UD2 spontaneous reboots

I thank you so much for your help with everything Wazza. Could you direct me to some further information where I might be able to answer my questions? Intel's site is either feast-or-famine with information. I"m looking for known good configs for an i5 750 and the gigabyte P55M-UD2 motherboard.

Do you know what voltages would be normal for the i5 cpu? You said mine was a bit high.

Thanks again!

[wazza300]

Re: p55M-UD2 spontaneous reboots

I thank you so much for your help with everything Wazza. Could you direct me to some further information where I might be able to answer my questions? Intel's site is either feast-or-famine with information. I"m looking for known good configs for an i5 750 and the gigabyte P55M-UD2 motherboard.

Do you know what voltages would be normal for the i5 cpu? You said mine was a bit high.

Thanks again!

well im no expert with the p55 boards but there all pretty much the same config,by normal i meant theres a marked "normal" setting for your cpu voltage in the bios,set it to that as the auto setting will always overvolt,and you can set yourram voltage to what ever its rated at usually 1.5v-1.66v in the bios....is qpi on auto voltages? regarding your problems its usually ram timings or not enuff qpi voltage that causes random lock ups like your describing

[SRed]

Re: p55M-UD2 spontaneous reboots

You're right, there were auto and normal settings for most voltages. Why even make auto then if its going to cause potential instability?

I set it all on normal, so far so good! I'll let you know if this fixes things.