Mushkin Readline (4x2gb) + AMD = FTW!

**rav3n72** · 22-10-2010, 11:06 AM

Hi Guys,

The Mushkin Redlines uses binned (afaik) PSC IC's in the modules, which works extremely good with AMD. I choose 8Gb (4x2gb) because prophecy sells these modules at a amazing price.

As most of you know if you add more memory modules it put stress on the IMC and memory modules and thus you need to relax the memory timing and/or the command rate to 2T.

I installed the modules and configured the rated timings in the bios and woot they boot up at the timings only rated for two modules.

I will do some tuning and overclocking of these modules during the weekend and post it here.

**Jude** · 22-10-2010, 11:21 AM

Hi Raven, thanks for the feedback, glad it works for you

Oj · 22-10-2010, 11:27 AM

They are binned, I told you

**rav3n72** · 22-10-2010, 12:03 PM

Thanks Oj. I get better timings with four of these than two dominator gt's.

I will do some overclocking over the weekend and see what I can get out of them. Like you said, CL5 doesn't do any good so I am shooting for 1700-1800 CL6.

**VPII** · 22-10-2010, 12:39 PM

Thanks Raven. It's a pitty the TRCD sits at 8. Try 7 and see if it will works.

**rav3n72** · 22-10-2010, 12:48 PM

Originally Posted by VPII

Thanks Raven. It's a pitty the TRCD sits at 8. Try 7 and see if it will works.

I just tried the stock settings for now, but 99% the tRCD @ 7 will work.

**VPII** · 22-10-2010, 12:54 PM

GIve it a shot, it should give a another bump in performance with AMD.

Oj · 22-10-2010, 01:39 PM

1600 6-7-6 should be no problem, C6 at 1800MHz might be pushing it though. You're probably going to end up with 6-9-6 or similar.

**rav3n72** · 22-10-2010, 03:35 PM

sorry guys. no tRCD 7 with 4 sticks. 6-8-6-18 is the best @ 1600, but I am slowly push up and am now at 1700 6-8-6-18 with 4 sticks.

Oj · 22-10-2010, 03:40 PM

What voltage did you try?

**rav3n72** · 22-10-2010, 04:26 PM

mem @ 1.65V; cpu-nb 2700mhz @1.2V; nb @ 1.2v

some guys (googled) say that psc doesn't like high voltage and that those modules like lower voltage eg: 1.62V. doesn't make sense to me.

I can boot @ 6-7-6-18, but windows bsod while loading, have't google the bsod error yet.

Oj · 22-10-2010, 04:47 PM

Your BSOD will be RAM related. You're putting more stress on your IMC by running tighter timings, and the voltage there is already quite low. Try 1.35v and see what happens. Yes, PSC is low voltage RAM, but I'd try up to 1.72v or so anyway as no two ICs will behave in the exact same manner. What doesn't make sense to you? Perhaps I can clear it up for you.

NB voltage does less than nothing for you.

**rav3n72** · 22-10-2010, 06:09 PM

What doesn't make sense was the guy that says less voltage would make the modules more stable. I heard putting the nb on 1.2v give more stability. I will try increasing the imc, but it adds a top of heat on the cpu, so I am trying to find a nice overclock on relative low voltage, but 1.35v won't be that bad (will try tomorrow). I tried 1.5V when pushed for 3400 cpu-nb on a H70 and it was totally bad news (added around 10C to the cpu load).

Oj · 22-10-2010, 06:34 PM

Hahaha yeah those H50s don't handle load too well. Some sticks don't respond well to voltage, it's always been that way:

DDR400: JEDEC stock 2.5v
TCCD, old, best around 3v, new scaled to around 3.4v and died
BH-5, best around 3.6v, scaled all the way to 4v without ill effect

DDR2: JEDEC stock 1.8v
PSC, best around 2v, scaled to around 2.2v and then died with more
D9DQT, etc (Fatbodies), ran very well at 2.7v stable, scaled to 3.375v
D9GMH, D9KHX, scaled very well to 2.4v for daily usage and died with more, 2.7ish v for benching, scaled to 3.375v (I got DDR1200 3-3-3 that way)

DDR3: JEDEC stock 1.5v
Hypers, best around 1.73v which hurts them on Intel but not AMD, scales nicely to under 1.8v, more kills them quickly
D9JNL, D9GTS, D9GTS, scales to about 2.15v for 24/7 without ill effect, scales to 2.4v for benching, degrades after that. Been running ~2v for a year now with up to 2.55v when pushing hard

CPUs
Phenom 2, stock around 1.4v, scales on air/water 24/7 to around 1.6v, tops out around 1.85v on LN2 and scales no further
Core i5, stock ?, don't want to try 1.6v 24/7 unless you want a dead chip, scales to 2v+ on LN2 followed by death

Some components just like voltage, others don't. Try playing around with your NB voltage and tell me how much of a difference it makes

**rav3n72** · 24-10-2010, 08:26 AM

tRCD 7 = fail; no matter what I try.

This is my 24/7 speed that I kept it at over the weekend.

One interesting thing is that with the dominators I need 1.45V for 3000mhz cpu-nb and with the redlines only 1.2v!!!

I am satisfied with the results and can now start overclocking the cpu. (The memory and cpu-nb can still go higher, but it good enough for gaming) If I am bored I will oc some more, but I bought Medal of Honor yesterday and start playing online :P

@Oj:
1. I know you said the cpu-nb must be at least 2x the memory speed, but 1600 6-8-6-18 was faster that 1333 5-7-5-18 for me. Maybe it has to do with the fact that is no cl5 registers in the imc as you told me.
2. Running the HT-L = NB-F is faster on the memory, but reduce 3d performance ??confused?? I'll do some more testing on this, maybe is was something else.