Gigabyte B75M-D3H issues

[enterprise-psi]

I recently bought Intel CPU Core i3-3250, Gigabyte B75M-D3H and 1 Crucial Ram DDR3 4GB Dimm 1600MHz Ballistix Sport XT for an HTPC.

I used my old Corsair 500w PSU and an WD 1TB Green.

So i assembled it, and it posts fine. I configure the bios, and then restart to install windows. But it keeps resetting.
While it loads the files from the usb drive where the windows iso is, it restarts.
If i remove the hard disk, and select to boot from the flash drive it restarts.
If i boot to hiren's boot cd, it will load the main menu, and if i select mini xp it restarts! If i do various memtest , it does many pass with no problems.
it has the latest bios f15 from gigabyte. i did a reset with removing the battery but the problem persists.
attempting to run video and cpu stress test from hirens boot cd, makes it restart!

on a separate note, it has also broken my hdd, making it display raw partition, i am attempting to fix it now with testdisk.

is the motherboard fubar? thanks in advance 😀

 

[Cristi72]

Hello,

It could be a bad motherboard, it could also be the PSU, if Corsair CX (how old is it?). Go into BIOS and check the CPU temperature, CPU voltage and +12V voltage. Are you running a discrete GPU or the integrated one?

 

[enterprise-psi]

The psu is the vx550w

here are the temps and volts

and yes i am using the integrated gpu of the i3

 

[Cristi72]

The psu is the vx550w

here are the temps and volts

and yes i am using the integrated gpu of the i3

The Corsair VX-series is an entry-level Corsair PSU (they are discontinued now and replaced with the CX-series) and do not have good reliability tracking.
In BIOS, the voltages seem to be OK, but I suggest you to try another PSU (you cannot check the voltages under load, as you cannot go into Windows and install a monitoring program, such HWMonitor). If you have a digital multimeter, you can measure the +12V voltage during startup (if it drops under +12V, the PSU must be changed; your system consumes less than 150W under full load, so no drop under +12V can be tolerated).

 

[enterprise-psi]

But that psu worked fine on the previous system , could it be that the new mobo draws more power?

I do have a digital multimeter, but i am not sure where to plug it in on the mobo

 

[Cristi72]

But that psu worked fine on the previous system , could it be that the new mobo draws more power?

I do have a digital multimeter, but i am not sure where to plug it in on the mobo

I really hope your PSU is not over 8 years old, as an P4 system suggests...

You can measure +12V from one of the Molex plugs, the black lead connected to one of the black wire and the red lead connected to the yellow wire:
http://en.wikipedia.org/wiki/Molex#mediaviewer/File:Molex_female_connector.jpg

 

[enterprise-psi]

No , i dont remember when , but it can't be more then 5 years old. So i measure it and i am getting 11.99V. After the first boot loop it gets 12.00V and stays there. Tomorrow i wil use the psu of my main computer. If the problem persist i should replace the motherboard right?

 

[Cristi72]

No , i dont remember when , but it can't be more then 5 years old. So i measure it and i am getting 11.99V. After the first boot loop it gets 12.00V and stays there. Tomorrow i wil use the psu of my main computer. If the problem persist i should replace the motherboard right?

Yes, if the problem persists with the other PSU, the motherboard is to blame.

One more thing: the RAM uses the XMP profile in BIOS? Check if the frequency/timings/voltage from specs matches the values from BIOS: DDR3-1600MHz, CL9 (9-9-9-24), 1,5V.

 

[enterprise-psi]

Yeah it uses the XMP




I do not think it's the ram as i did a 4 hour memory test, from hiren.
But while im swapping psus, ill test with another ram too.

 

[enterprise-psi]

you were right about insisting on the PSU. When i plugged the other one it works fine. I entered mini xp from hiren's boot cd, then did some fprime and memory tests , not a problem.

Looks like i need a new psu. Thank you very much for the help!