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Computer won't start up

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January 23, 2009 12:47:28 AM

Hi everyone. My desktop sometimes will not start up... when you hit the power switch, it powers on / fans start spinning / etc. but the monitor gets no signal, and the keyboard / mouse don't turn on. It seems to happen completely randomly, and other times it starts up without any problems. It's been suggested to me that maybe my RAM or Graphics Card aren't seated right, but I've pulled them, put it back together, and everything's tight. Has anyone else ever had a problem like this? Is there anything I can do or check to figure out what the problem is? Thanks!
My System (if it helps):
ASUS RAMPAGE FORMULA LGA 775 Intel X48 ATX Intel Motherboard
Intel Core 2 Quad Q9550 Yorkfield 2.83GHz 12MB L2 Cache LGA 775 95W Quad-Core Processor
EVGA 512-P3-N873-AR GeForce 9800 GTX+ 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card
G.SKILL 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory (4 Gigs total)
Seagate Barracuda 7200.10 ST3250410AS 250GB 7200 RPM 16MB Cache SATA 3.0Gb/s Hard Drive
Running Windows XP

More about : computer start

January 24, 2009 7:35:54 PM

I am having the same issue with the same memory on a Gigabyte GA-EP45-UD3R with an Intel Core 2 Duo E8400 Wolfdale.

The computer will boot and run stably with both sticks of memory in separate channels (single-channel) but I cannot get it to boot with a dual-channel configuration.

Anyone with any advice?
January 24, 2009 8:15:49 PM

solarweasel said:
I am having the same issue with the same memory on a Gigabyte GA-EP45-UD3R with an Intel Core 2 Duo E8400 Wolfdale.

The computer will boot and run stably with both sticks of memory in separate channels (single-channel) but I cannot get it to boot with a dual-channel configuration.

Anyone with any advice?



Hmmmm... maybe its just that brand name of Ram then. I have Ram in all 4 slots on my board, and it seems kind of random... sometimes it boots up, sometimes it doesn't. What's weird is one time when I booted after having the problem, it gave me the error as it was starting up, "Overclocking failed", which is weird because I hadn't fiddled with any of the Bios settings or attempted to OC at all.
January 24, 2009 8:28:45 PM

Upon further tinkering I have found the system WILL run stably in dual-channel when the memory frequency is decreased to 800MHz from 1066MHz.

Since the GSkill memory desires a 2.0-2.1V operating voltage, I had to manually up that value from the mobo default of 1.8V.

Elsewhere someone had suggested increasing the MCH voltage. What would this achieve?
!