Somewhat weird problem, regarding resetting PC (involves RAM)

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nefschy

Honorable
Apr 20, 2013
3
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10,510
Hello all, I've got a really weird problem.

I've got:

- i7 920 @3.0Ghz (C0/C1) (stable, ran Intel Burn on very high 10x) Max temp 74°C

-12GB Adata RAM

(3 x 2GB 1600G Gaming series, 2 x 2GB XMP1.2 Gaming Series 1600G, and 1x 2GB XMP 1.2 2000G Gaming Series) All are 9-9-9-24 @800Mhz, except the 2000g where it is 9-9-9-24 @1000Mhz.

- Gigabyte GA-EX58-UD4
- ATI RADEON 4890HD 1GB GDDR5

So about the problem.

Well the first thing is that sometimes my w7 64bit, reads only 10GB of ram, sometimes 12GB, sup with that?. I did mem test, prime95, intel burn on very high, no errors were found. I used 1 ram at a time to see if it windows will boot, and it boots. Oh yeah and cpu-z and speccy say that I got 12GB's of RAM.

The second thing is if I restart my PC my motherboard restarts itself for 3 times, then loads default settings in BIOS (lowering my ram speed, CL, basically all is on auto. BUT! if I shut down my PC or if I disconnect the power cord from the PSU. And turn it back on, it loads everything normally o_O.

This must be silly right? :D

Thank you all for your answers, good day!
 
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geofelt

geofelt

Titan
Oct 9, 2006
54,291
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Some motherboards are sensitive to mismatched ram.
And, you have a mismatch in spades.
Ram is sold in kits for a reason.
Ram from the same vendor and part number can be made up of differing manufacturing components over time.
Some motherboards can be very sensitive to this.
That is why ram vendors will not support ram that is not bought in one kit.
Although, I think the problem has lessened with the newer Intel chipsets. Still,
it is safer to get what you need in one kit.

I might suggest you buy a single kit(3 x 4gb) of compatible ram.
The ram vendor web site will have a configurator to verify that any ram is compatible with your motherboard.

But, to try to fix the problem, try increasing the ram voltage a bit. All sticks must run at the same voltage, and it is harder to control 6 sticks vs. 3.
The initial delay is the motherboard trying to find a ram setting that works.
 
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inzone

inzone

Champion
Mar 12, 2011
14,971
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I noticed that you do have a 6gb kit of 1600mhz ram (3 x 2GB 1600G Gaming series) and what you can try is this. Remove all the ram and in the three slots that are designated for running three sticks of ram , put in that kit of matching ram sticks and run your computer.
Then try some games to see how it does. For one thing you don't need or will you use 12gb of ram for gaming and to show you what I mean open the resource manager and click on the memory to show what the computer is using real time as you game. You will find that the memory usage is at about 5gb, so even if you had 12gb in there your only using 5gb of it.

To get things smoothed out if you want to go with 12gb then buy another 6gb kit to match the kit you have.
 
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nefschy

Honorable
Apr 20, 2013
3
0
10,510
I've updated my BIOS and it's all good in some way.

It only works with 3x 2GB 1600G, and 1x 2GB 1600G XMP1.2, if I put 1 more 1600G XMP1.2 and 2000G XMP 1.2, I get blue screen, in mid of w7 start.

Guess I'll stick with 8GB of RAM.

@inzone I need RAM because I play Lineage 2, and I'm running 6 clients, and each one uses around 800MB XD

Thank you both for help!
 
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