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GSKILL RIPJAWS X CL7 problems with P8P67 pro rev.3 - Page 2

post #11 of 31
Quote:
Originally Posted by pioneerisloud;14244605 
I personally have just used Auto timings for all my timings, except the 5 main ones. Never had an issue with an Asus board and auto sub timings personally. So I'm not 110% sure that setting TREF and TRC and all that manually will help a whole lot.

really? i couldn't get my oc stable without changing the auto timings... btw tRFC is huge in performance increase in some areas.

Looks at this, it's really interesting... tons of benches
http://www.xtremesystems.org/forums/showthread.php?263183-Memory-Timing-Benchmark-(CL-tRCD-tRP-tRAS-CR-tRC-tRFC-tREF)

EDIT: TRC is also one of the biggest timings for stability... it has to be tRAS+tRP or higher (or else it won't boot), i personally add 4, so (tRAS+tRP+4)= tRC

EDIT: when you leave it on auto, the mobo (atleast mine) will not adjust the other timings accordingly. Even if it does... making a slight change could be the difference between booting and not booting. OP do you know how to get to your advance timings?
Edited by badatgames18 - 7/17/11 at 5:10am
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post #12 of 31
Quote:
Originally Posted by kazama;14244678 
all the memories are the same 7 8 7 24 1.5v
,
which are the correct volts for run all the memories 9 9 9 28 ( bios detect like that)?

im on 2600k doing oc to 4.5, all auto, except vcore manually to 1.33, vdrm 350.I passed ibt, and linx using 4096 but using all the memory system reset.

if i cant run it 24/7 at 787 timmings at least i want run totally stables with 999 and my oc.

is better for the oc 2 modules of 4 instead of use 4 modules?

So if you force it to use all the memory, it won't pass stable? Sounds like you've got a bad kit in there then to me. At least one stick sounds faulty. And that would certainly explain why it doesn't play nicely.
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post #13 of 31
Felt kinda fishy myself when I first bought it, some random brand comes out of nowhere and produces a seemingly perfect kit @ a low price.

I use the ram & it's impossible to meet those stock voltages & timings. It's only possible to be put at the claimed "1600MHz, 7-8-24-T2, 1.5v" if I use just ONE stick.

However I disregarded the issue & overclocked the ram instead, now at 1866MHz, 8-8-9-24-T2, 1.65v with 4 sticks.

*Happens on all versions of BIOS. The ram simply isn't a "genuine" cas7.
    
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post #14 of 31
As I already said, you will almost always have to purchase a pack of quad channel memory in order for it to run at the specified timings/volts. What the OP described is exactly what usually happens if you try to use 2x packs of dual channel memory. The timings will increase at the specified voltage.

For example, this pack of dual channel G Skill runs at 6CL for dual channel but at 9CL for 4 dimms. (Check the reviews)

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231444
Quote:
Pros: bought a second kit of this memory. When running with 4 x 2gb sticks you will need to tweak your settings. Right now Im running 4 x 2gb @ 2133MHz 8-10-8-28 2n VDRAM 1.62 V. High quality memory, I recommend.


Cons: CAS 6 with 4 dimms is probably not going to happen, but G.Skill only guarantees these work with 2 dimms, fyi.


But here is a quad channel kit which I bought that guarantees the timings/volts for 4 dimms:

http://www.gskill.com/products.php?index=348&c1=&c2=&search=UmlwSmF3cw==


Note: these are only the guaranteed timings/volts. Naturally you can modify the timings/volts manually. But you may not be able to get it as fast as you expected from 2 dimms.
post #15 of 31
Quote:
Originally Posted by Phantom_Dave;14244711 
As I already said, you will almost always have to purchase a pack of quad channel memory in order for it to run at the specified timings/volts. What the OP described is exactly what usually happens if you try to use 2x packs of dual channel memory. The timings will increase at the specified voltage.

For example, this pack of dual channel G Skill runs at 6CL for dual channel but at 9CL for 4 dimms. (Check the reviews)

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231444

But here is a quad channel kit which I bought that guarantees the timings/volts for 4 dimms:

http://www.gskill.com/products.php?index=348&c1=&c2=&search=UmlwSmF3cw==

Note: these are only the guaranteed timings/volts. Naturally you can modify the timings/volts manually. But you may not be able to get it as fast as you expected from 2 dimms.


Mine is 2 dual packs, and it works just fine. My last rig ran the same (Kingston Hyper X DDR2). And my rig before that was also 2 dual packs. I've NEVER bought a quad pack, simply because 2 dual packs is cheaper.

Not saying you're wrong, but I've NEVER experienced this problem, unless the memory itself was faulty.

If he's indeed, failing stress tests then its either a vcore issue or bad RAM. He said that it fails when running full system memory, which leads me to believe its a bad stick or two of RAM in there.
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post #16 of 31
Quote:
Originally Posted by pioneerisloud;14244725 
Mine is 2 dual packs, and it works just fine. My last rig ran the same (Kingston Hyper X DDR2). And my rig before that was also 2 dual packs. I've NEVER bought a quad pack, simply because 2 dual packs is cheaper.

Not saying you're wrong, but I've NEVER experienced this problem, unless the memory itself was faulty.

If he's indeed, failing stress tests then its either a vcore issue or bad RAM. He said that it fails when running full system memory, which leads me to believe its a bad stick or two of RAM in there.

It's not always the case that the timings will change when using 2x dual channel. But often they will. I don't know why, I only know it does. Maybe higher quality (more expensive) ram is less likely to have issues with 4 dimms? IDK. But what the OP describes is what I've read in many reviews (namely from G Skill).
post #17 of 31
Quote:
Originally Posted by Phantom_Dave;14244748 
It's not always the case that the timings will change when using 2x dual channel. But often they will. I don't know why, I only know it does. Maybe higher quality (more expensive) ram is less likely to have issues with 4 dimms? IDK. But what the OP describes is what I've read in many reviews (namely from G Skill).

Hmmm......

Here's what I've ran in 2 dual packs
4x1GB of Corsair XMS DDR400, 2.5-3-3-6 (ran stable at DDR580, 2.5-3-3-6-2T)
4x2GB Kingston HyperX DDR2-800, 5-5-5-18 (ran stable at DDR2-1100, 5-5-5-15-2T)
4x2GB GSkill Ripjaw X DDR3-1600, 9-9-9-24 (runs stable at DDR3-2133, 9-11-9-28-2T, and my sig speeds).

You could be onto something though. I can test it once my 16GB of Ripjaw X CL8 DDR3-1600 comes in next week. This would especially make sense, since this is my first set of GSkill RAM, and my first set of DDR3, and it just happens to be the budget junk RAM.
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post #18 of 31
Quote:
Originally Posted by pioneerisloud;14244835 
Hmmm......

Here's what I've ran in 2 dual packs
4x1GB of Corsair XMS DDR400, 2.5-3-3-6 (ran stable at DDR580, 2.5-3-3-6-2T)
4x2GB Kingston HyperX DDR2-800, 5-5-5-18 (ran stable at DDR2-1100, 5-5-5-15-2T)
4x2GB GSkill Ripjaw X DDR3-1600, 9-9-9-24 (runs stable at DDR3-2133, 9-11-9-28-2T, and my sig speeds).

You could be onto something though. I can test it once my 16GB of Ripjaw X CL8 DDR3-1600 comes in next week. This would especially make sense, since this is my first set of GSkill RAM, and my first set of DDR3, and it just happens to be the budget junk RAM.

I don't doubt that you have ran what you have said. I do know that the only difference between between dual, tri, and quad channel memory is that the manufacturer grouped up ram that they tested and confirmed to run at the timings/volts they state on the package for the enclosed dimms.

It could be possible that you happened to get the exact same ram that would have been grouped into a quad pack and the OP got ram that would not have been grouped into a quad pack. There is no difference in the ram since the mobo determines dual, tri, and quad channel, not the ram (you probably already knew this).

Other than that, IDK. I only know what I've read in G Skill reviews. I was looking for G Skill exclusively so I haven't read reviews on other brands of ram lately. In any case, I feel this is information which should be shared.
post #19 of 31
I just think its an interesting find honestly. Not saying you're wrong either.

I do intend to test this theory out once my 16GB comes in though. wink.gif
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post #20 of 31
Thread Starter 
Seems then that using two kits memories becomes CL9?

I will try at home 9-9-9-24-2
dram voltage 1.6
vccio 1.10

I will do the linx (all memory) test again.

If crashed again maybe i have to up more the vcore? actually is at 1.33 in bios, rest fo values in auto.

Will be the vcore be less if i change the memories for a kit 4gbx2? i begin to think that more dimms more vcore needed.
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