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Unstable after upgrading RAM

post #1 of 16
Thread Starter 
I installed some brand new RAM into my computer last night (4x4GB in sig) and something is now unstable. I booted up after installing and reset my CMOS through the BIOS and then preceded into Windows. I ran prime95 Blend test and after 4 minutes I got an error. My first thought was the RAM was bad so last night I ran Memtest for 10 hours and it didn't report any errors.

Any advice on what I should check next?
338
post #2 of 16
Did you only have two sticks in before? Many times an OC will not be stable when you move to four sticks of memory since there is more stress on the memory controller. I got lucky with my current system. This is the first one that I've been able to run the same OC with four sticks as I can with two.

You could try upping your VTT voltage a hair and see if it helps.
Edited by Vagrant Storm - 11/18/11 at 8:41am
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post #3 of 16
Thread Starter 
Quote:
Originally Posted by Vagrant Storm View Post

Did you only have two sticks in before? Many times an OC will not be stable when you move to four sticks of memory since there is more stress on the memory controller. I got lucky with my current system. This is the first one that I've been able to run the same OC with four sticks as I can with two.
You could try upping your VTT voltage a hair and see if it helps.

Yea only 2 sticks before, 2x2GB. I have no OC this is with default BIOS, stock clocks. I don't have VTT voltage in my BIOS unless it is labeled something else.
Edited by Moheevi_chess - 11/18/11 at 8:47am
post #4 of 16
Quote:
Originally Posted by Vagrant Storm View Post

Did you only have two sticks in before? Many times an OC will not be stable when you move to four sticks of memory since there is more stress on the memory controller. I got lucky with my current system. This is the first one that I've been able to run the same OC with four sticks as I can with two.
You could try upping your VTT voltage a hair and see if it helps.

^ this
yea , you should always re-evaluate your overclocks whenever you installs system hardware...i would go and reset timings back to stock.
and im assuming that the ram in your sig is the one your talking about,
go into BIOS and force 1600MHZ speeds but reset FSB back down to 200 so that it doesn't try to increase the mem speed.

don't forget, if you increase your FSB to OC your processor, it hits your RAM as well...i recommend just using multi for that chip....much smoother clocking
(i dont know if you have it OCed - sorry if i assumed this but i can't make out the stats in your pic)
post #5 of 16
Oh no OC?

I think I'd still try giving the VTT voltage a kiss. Motherboards don't always set everything to what it should be. My current board will auto-set the memory voltage to 1.5 when it should be 1.6 for example (though I run it at 1.5 anyway...since it works.)

Try running two sticks but test different combinations of which slots you use. Don't worry about dual channel and such for testing purposes. I've seen a few mother boards that would give problems no matter what if there was a stick of memory in a certain slot.
Edited by Vagrant Storm - 11/18/11 at 8:51am
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post #6 of 16
Thread Starter 
Quote:
Originally Posted by Hazzeedayz View Post

^ this
yea , you should always re-evaluate your overclocks whenever you installs system hardware...i would go and reset timings back to stock.
and im assuming that the ram in your sig is the one your talking about,
go into BIOS and force 1600MHZ speeds but reset FSB back down to 200 so that it doesn't try to increase the mem speed.
don't forget, if you increase your FSB to OC your processor, it hits your RAM as well...i recommend just using multi for that chip....much smoother clocking
(i dont know if you have it OCed - sorry if i assumed this but i can't make out the stats in your pic)

Not OCed and sorry the picture was resized by OCN. OP states that I reset the BIOS to default, only changes I went in and made were setting the timings to 9-9-9-24.
Quote:
Originally Posted by Vagrant Storm View Post

Oh no OC?
I think I'd still try giving the VTT voltage a kiss. Motherboards don't always set everything to what it should be. My current board will auto-set the memory voltage to 1.5 when it should be 1.6 for example
Try running two sticks but test different combinations of which slots you use. Don't worry about dual channel and such for testing purposes. I've seen a few mother boards that would give problems no matter what if there was a stick of memory in a certain slot.

I'll give this a try! Although I can't find VTT voltage in my BIOS, could it be listed as something else?

Edit: I forgot to mention that I set my DRAM voltage to 1.65
Edited by Moheevi_chess - 11/18/11 at 9:06am
post #7 of 16
VTT could be labeld as QPI voltage or perhaps uncore voltage. I really wish this was a universal thing.
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post #8 of 16
your BUS is running at 202
bring it down to 200, that should fix your issue
either that or force mem speeds to 1600MHz or lower (dunno what specs are for your RAM)

the voltage increase would prolly help as well but it shouldn't be necessary (but yea, then again your right, BIOS doesn't always set correct stuff)
post #9 of 16
Thread Starter 
Quote:
Originally Posted by Vagrant Storm View Post

VTT could be labeld as QPI voltage or perhaps uncore voltage. I really wish this was a universal thing.

449
Quote:
Originally Posted by Hazzeedayz View Post

your BUS is running at 202
bring it down to 200, that should fix your issue
either that or force mem speeds to 1600MHz or lower (dunno what specs are for your RAM)
the voltage increase would prolly help as well but it shouldn't be necessary (but yea, then again your right, BIOS doesn't always set correct stuff)

My BUS is at 200 not sure why it fluctuates while in Windows 7, also have memory set to 1600 as you can see in the image.
post #10 of 16
I am thinking it is the CPU/NB voltage.

Looked around a bit...it looks like 1.25-1.35v is a common overclocking setting and 1.2v is stock.
Edited by Vagrant Storm - 11/18/11 at 9:39am
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My System
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RAMHard DriveOptical DriveOS
4x4GB G.Skill Ripjaws bunch of 'em Blu-Ray For movies Windows 8.1 
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