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No signal to monitor? New PSU?

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  • Power Supplies
  • Monitors
  • Components
  • Product
Last response: in Components
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November 28, 2011 11:48:33 PM

Well I recently built my first computer, and when I tried starting it, everything powered up, EXCEPT the monitor. When I rearranged my RAM sticks, it worked, HOWEVER it did not show all 8gb of RAM. It only showed 4GB, but I think its because it said "Single channel memory mode"

Is it because my power supply wasn't good? I think everything else drew too much power away from the RAM.

This is my setup:

AMD Phenom II x4 965 Black Edition
Radeon HD 6850
ASRock 970 extreme3 mobo
2x4 (8gb) Corsair Vengeance RAM
TWO 160 GB Hard drives
1 normal DVD/RW thing

And my previous power supply was...this:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...


I think the amps or whatever wasn't enough to power everything, so I went ahead and bought this:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...


People on this forum told me it should be enough to power my card, but will it fix my no signal to monitor as well? D: Or more specifically, the single channel memory mode? Will it turn it into dual, so that my computer will recognize all 8GB? Yes my sticks were pushed in all the way, and yes I checked CPUID or whatever, it still said single and 4GB.

I also went ahead and ordered new RAM, one that was on my motherboards compatibility list.

Should all that fix my problem? D:

I just wanna make sure before I get all excited then depressed after finding out it didn't work. D:

Again, the not enough power to power dual channel memory mode is just my theory, I don't know if thats the problem or anything lol.

More about : signal monitor psu

a b ) Power supply
a b C Monitor
November 29, 2011 12:29:46 AM

Install your memory into slots A2 and B2. They must be identical memory modules to activate dual channel mode. If you wish to add more memory you can two more identical (to the ones you have) in slots a1 and b1 and maintain dual channel mode.

This is covered on page 17 of your motherboard manual.


The power supply wont fix your video issue unless your current one is broken somehow. Are you sure you connected the PCIe power cables to the video card?
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November 29, 2011 12:44:32 AM

popatim said:
Install your memory into slots A2 and B2. They must be identical memory modules to activate dual channel mode. If you wish to add more memory you can two more identical (to the ones you have) in slots a1 and b1 and maintain dual channel mode.

This is covered on page 17 of your motherboard manual.


The power supply wont fix your video issue unless your current one is broken somehow. Are you sure you connected the PCIe power cables to the video card?


I put them in every combination possible, and they only work when its in A2 and B2, and it still won't do dual channel mode. Are you sure the PSU wont fix anything? Cause the amps on the one I tried it with were very low.

And like before, its not a video card issue, the card works when the RAM's are in slots A2 and B2 or A1 and B1, but it still shows single channel mode.
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