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Thread ID: 80057 2007-06-10 00:50:00 Motherboard Fans stop after post checks Rayman (12367) Press F1
Post ID Timestamp Content User
557767 2007-06-10 00:50:00 Hello,

Now and then The CPU Fan and the Chipset fan stop spinning after the system does it's post checks on the motherboard and sound a long beep from the pc speaker. It seems to do it if I leave my computer off for more than two hours. When I power it up for the second time the screen stays blank untill I reboot it again. It seems to clear when I go in the bios and save on exit. The bios clock is always correct. Yesterday I got some strange voltage readings- ATX+5.0v = 3.81V and the Chip+1.5v = 2.01V. But they seem to be correct now. The power suppy I've got is a Liberty 500watt which is only a week old.

If any one knows what might be going on please let me know as I don't know what to try next.

Any help would be great.

Thanks
Rayman (12367)
557768 2007-06-10 01:11:00 And your motherboard is??? :rolleyes:

Look at the BIOS beep codes for the motherboard, that will tell you why it is beeping
The_End_Of_Reality (334)
557769 2007-06-10 01:53:00 HI,

My motherboard is a Infinity INF NF SLI-M2,
The motherboard book says a single long beep means it's a DRAM error?
But sometimes it does it after the bios post checks.
Do you think it could be the ram??
I've got two 1GB DDR 622 Dual Channel ram cards. I've changed slots and checked to make sure they are in correctly.
Rayman (12367)
557770 2007-06-10 01:56:00 Have a single stick of ram in and see if you can mimic the errors again (try both).
Also try a memtest86+ with both sticks in and leave it going for a few hours.

EDIT: Oh and some motherboards require the sticks to be in a certain slot for booting. Or maybe that is only DFI motherboards :D
trinsic (6945)
557771 2007-06-10 02:24:00 Then run Memtest and see if that picks up any faults. Leave it running overnight.

trinsic, I have a DFI NF4 SLI-DR and that has no issues with RAM... they are an amazing brand so don't knock what you don't know ;)
The_End_Of_Reality (334)
557772 2007-06-10 06:55:00 Hello,

Now and then The CPU Fan and the Chipset fan stop spinning after the system does it's post checks on the motherboard and sound a long beep from the pc speaker.


I'd be seriously worried about that.
It could fry them.

Check the PSU and if thats OK RMA the motherboard.
pctek (84)
557773 2007-06-10 08:07:00 Check the PSU and if thats OK RMA the motherboard.

What's the best way to check the psu?
What do you mean by RMA the motherboard?:confused:
Rayman (12367)
557774 2007-06-10 11:00:00 I have just finished running the memtest86+ program for about two hours and it picked up no errors in the ram. So I don't really know what's causing the problem. Rayman (12367)
557775 2007-06-10 20:11:00 Just because you ran it for a measly 2 hours does not mean that there is no RAM error... I have seen PCs run fine for 5+ hours on Memtest... then they started to error out... so leave it running as long as you can (over night as I said before will be good) The_End_Of_Reality (334)
557776 2007-06-10 22:21:00 What's the best way to check the psu?
What do you mean by RMA the motherboard?:confused:

By installing another known working one.

Return Materials Authorisation. Return the board for replacement or repair.

I doubt its the RAM.
pctek (84)
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