G.SKILL Ripjaws 8GB F3-12800CL7D-8GBRH 1600 7-8-7-24 1.6 (2 x 4GB)

[chew*]

chew, i like it.. you tweak mem timings directly on windows?

No I tweak via bios, tweaking in windows is asking for a trashed OS, tweaking in bios and then running memtest before booting saves OS's from getting trashed, cpu twkr is just to show i'm not slacking stuff to get artificial speed


Problem booting over 1800 with 8 gig on this duallie IMC, will try out a thuban later.



But can it run crysis? I dunno, 3 hour prime stable with tight timings is a cinch though undervolted............

[youngpro]

These ripjaws are an interesting kit, as I work in the IT industry and use dedicated machines for virtualized server testing, i can really see a great use for these... 4GB sticks are have a bit of performance behind them and i don't have to trade in my left arm in exchange for..






TEST PLATFORM

• Gigabyte P55A-UD7
• Intel Lynnfield 870
• Gigabyte 6850
• Corsair AX1200
• Corsair Force 40GB

Just to start with i took a look at what these are capable of at some stock settings with some low voltages as the low voltage kits seem to be popular with systems builders.. stock settings are no problems at a low1.4v





BANDWIDTH COMPARSON @ STABLE SETTINGS

Now it is often looked upon badly at loosening off TRCD much past 8/9 but with a kit like this I think clocks like 9-10-9-24 makes sense. This kit is going to benefit from some extra bandwidth and most real world applications only care about bandwidth and not tight primaries or subs. Lets look at some bandwidth comparison with this kit. This kit is P55 and AMD targeted, so on the Lynnfield side of things it would be nice if we could raise out BCLK a bit at 2:10 to get that uncore up a fraction.

16437 MB/s read @ 1700 MHz 8-9-8-24 1T, 1.5v





18362 MB/s read @ 1900 MHz 8-9-8-24 2T, 1.5v






19885 MB/s read @ 2100 MHz 9-10-8-24 2T, 1.5v







RECOMMENDED STABLE SETTINGS

This is the settings I like on the Intel platform, I would run this in my 24/7 rig.

2000 9-10-9-24 2T 1.5 vdimm, You might find some kits will do 2050 or 2100 easily. My kit will LINX also at 2050 but then I need to use higher VTT, so I will choose 2000 9-10-9-24.






Even after LinX for an hour with these sticks at 1.6 volts they don't get much above 30 degrees celcius in a room of 23 degrees celcius.




It is worth noting this kit performs much better 2T, the bandwidth loss is minimal but the gains in MHz are high. Once going past about 900 MHz dropping from 1T to 2T will really let these sticks open up and show what they are made of.

[hiwa]

back from 2 days event
well i am testing 9-10-9 too

[hiwa]

OK

2050 9-10-9-24 1.50 LinX 20 minutes Stable




EVEREST RUN good enough



let's run 2100 Everest same Vdimm

[hiwa]

2100 9-10-9-24 1.50 HyperPi



and here we go @2160 9-10-9 1.65 32m Stable



setup pic with new Dimastech ROG edition

[Sam_oslo]

Repost. Posted this on UD7-tread too.

Finally got my G.SKILL Trident (3x4GB) 1600MHz 7-8-7-24-2N 1.65V (F3-12800CL7T-12GBTDD), it's not exactly the same as these 2x4GB kit.

Just a few quick tests on UD7 to get a feeling of it before putting it on SR-2.

It is running pretty smooth at rated speed with 1N on UD7. Not too bad a for a 3x4GB kit

3x4GB @1600MHz 7-8-7-24 1N 1.65v



It won't boot @1760MHz CL7, but is doing pretty good with CL8.
3x4GB @1760MHz 8-9-8-24 1N 1.65v


I'll be happy if it can do the same on SR-2 too.

[hiwa]

nice memories man, i am sure they can run same in dual channel

[Sam_oslo]

Repost. I posted this on SR-2 thread too. Yeah, It's a good one.

Just got those G.SKILL Trident (3x4GB) 1600MHz 7-8-7-24-2N 1.65V (F3-12800CL7T-12GBTDD) on CPU#1, and used my good old 3x2GB Corsair XMS3 1600 7-7-7-20 on CPU#0 on SR-2.
I didn't try to optimize it, because system is tied to November-challenge. Just booted up with these settings and it passed HyperPI32M
I'm really happy with this setting for now, and it is playing really nice on SR-2, better than on UD7 (I didn't test throughly on UD7 tho).

18GB @1600Mhz 7-8-7-24 1T, 1.65v - HyperPi32M stable

[Kentaro]

Interesting. Finally I'm getting mine within these few days. Can't wait to test it. Dont know how they perfrom on AMD!

[hiwa]

Wow 18gb at nice frequency, tight timings and low voltage, great stuff sam

Kentaro check first post for updates chew already test them on amd waiting for ur results man.

[Kentaro]

Got mine today. The kit is coming with black PCB and looks good. Something wrong with my image. More photos will come later


test with 1600 CL7 rated speed



1800 8-9-8


More test for +2000MHz will come. Hope my kit can rock as you guys'

[hiwa]

Got mine today. The kit is coming with black PCB and looks good. Something wrong with my image. More photos will come later


More test for +2000MHz will come. Hope my kit can rock as you guys'

set higher tRAS and 2T for +2000

[TinTin]

Here is my Ripjaws 8G....

The package:


Warranty Card and the rams:


The Specification: DDR3 1600 CL7-8-7-24 @ 1.6V


8-layers PCB:


Test Platform:



CPU: Intel i7 870
RAM: Gskill DDR3 1600 CL7-8-7-24 1.6V RIPJAWS 4Gx2
Display: Colorful iGame GTX460
MB: Asus P7P55D-LE BIOS 1808
PSU: Antec TPQ1200 OC Edition
SSD: AData S596

1.5V should be fine to running the specification:

DDR3 1600
DDR3 1600 CL7-8-7-24 @ 1.5V, LinX 5 rounds passed


The Everest Bandwidth: 17440MB/s, latency: 39.1ns


Okay, DDR3 2000+ should be my target, so let's go......

How about DDR3 2000 @ CL9
DDR3 2000
DDR3 2000 CL9-10-9-24 @ 1.6V, LinX 5rounds running......


passed...., I think 1.5V should work, but burning LinX 8G spends a lot of time, so I didn't try 1.5V again!!!


The Everest Bandwith: 18460MB/s, Latency: 38.4ns


Okay, let go higher to max-out the clock:

DDR3 2065

DDR3 2065 CL9-10-9-24 @ 1.6V LinX 5 rounds passed:


A bit higher DDR3 2082.8 CL9-10-9-24 LinX.....failed in the 4th round LinX...., but not bad for a 4GX2 kit


thx for reading..........

Next Test will be G.Skill DDR3 1600 CL7 low voltage 1.35V ECO @ DDR3 2400

[vern]

Here is my Ripjaws 8G....

The package:

Without difficulty to overclocking to DDR3 2000
Very nice

[TinTin]

Without difficulty to overclocking to DDR3 2000
Very nice

Vern, welcome to XS

[vern]

Vern, welcome to XS

HIHI
nice to meet you
The RAM have many overclock potential , but need a strong person to play out it

[hiwa]

ye they can do 2250 9-11-9 with 1.65 and pass everest and 2m with +18.5k read

[chew*]

Ok so I put a little more time in on these sticks.

Found the sweet spot for higher than 1800mhz clocks even without the need for thuban however still not really seeing any point of running them much above 1700 tight on AMD.

First lets look at everest comparisons.

I tried what PRO did with intel and applied it to AMD. As you can see we take a preety significant hit here using 2T command rate on AMD.

2T


1T


Now 963 8-9-8 is acchieved by lowering from 90ns to 110ns on these sticks, versus command rate on intel.



As we can see here it is actually performance related beneficial since at 90ns we can only do 1800 which ends up being slower performance wise in 32m even though everest shows that they trade blows 32m paints the real picture being over 10 secs slower at comparable clocks.





After extensive testing however I find no need or benefit on AMD as of yet to running high and loose other than maybe it gives you a more optimal cpu/nb configuration.

Also might add slacking to 110ns when running Cl7 on AMD offers no gains clock wise over 90ns.





Last but not least some prime at high speeds.

[PcCI2iminal]

mine is here,just a little run at stock speeds

[Afrokalle]

Arrived





Still waiting for i7 875 so started testing with 670 (so crappy IMC )

1700MHz 7-8-7-24 @ 1.65v:





Great memory for daily use and running even fine with the 670 IMC....

I will change to x64 OS and full memory load as soon as my Chip arrives...

[hiwa]

2200 9-11-9 1.59 32m and everest

[SeLecT]

Here are mine - but i have no motherboard to test them. Only the Zotac H55 ITX and a MSI Eclipse Plus.

[hiwa]

Back to Cl7

1720 7-8-7 1.60 32 passed




First page updated with all guys tests

[SeLecT]

Here are my short test on the MSI Eclpise Plus with a Core i7 965 C1. DDR3-2000Mhz won't work, because of the crappy CPU.

But this setting is nice too!

915MHz CL 8-9-8-24 1T @ 1,55V

[SeLecT]

I pushed the CPU with more QPI Voltage and you see - 1000MHz.

945MHz CL 8-9-8-24 1T @ 1,55V





1005MHz CL 9-10-9-27 1T @ 1,6V