Corsair Vengeance Low Profile DDR3-1600... does not overclock at all!!

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O

OJ77

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Dec 1, 2011
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Hey guys,

just put together my new system two days ago and started tweaking it. Started off with my 2500k and is now at 4.6GHz with voltages at 1.288V under load (offset mode) (is that good? lol)

Then moved on to my RAM, which is a Corsair Vengeance Low Profile DDR3-1600 rated at 1.5V 9 9 9 24 timings. This RAM doesnt overclock AT ALL or I'm doing something terribly wrong... I've tried 1866 at up to 11-11-11-27 and 1.7 V and it still wouldn''t POST.... tried also lowering the timings at 1.7V is POSTS but fails memtest at ddr3 1600.... unbelievable..... do other vengeance owners experience this? it is so weird because I read the reviews online and they seemed like they were good overclockers specially with these funky sinks and whatnot...

System Specs:

i5 2500K @ 4.6GHz @ 1.288v with H100 cooler
ASUS P8Z68 V-Pro GEN3
XFX 6950 1GB
Corsair Vengeance Low Profile DDR3-1600
1TB WD green
HAF-X with all red led fans
HX 1050 PSU
 
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A

amirp

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Im pretty sure your overclock is good, it's better than mine at least , im at 1.36 volts for 4.5ghz...

don't raise your ram voltage that high bro.... the tiny benefits aren't worth the risks!

Ram overclocking does not provide any tangible performance increase.....unless you know for a fact the program you want to use requires faster ram... in that case you would have bought faster ram.

If you still want to ... do not raise ram voltage above 1.65 volts, Ideally you should stick with the default 1.5v though.
 
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O

OJ77

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I know the performance increase in minimal, but it's just the overclocker in me that does not want to shut up lol...

It still would not hurt to overclock it, which again brings me back to my main point: am I doing something wrong here or have I missed something? Because this corsair memory is supposed to be a decent overclocker at the very least yet it's acting like any cheap generic memory that will not respond to anything but its rated specs...

And about the voltage yea I'm not gonna exceed 1.65 at all, I was just trying to test what it takes to run it at 1866. Right now it's back to stock settings. I hope people who own the same corsair kits share their experiences..
 
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jsc

jsc

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Jul 14, 2004
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Yes, I know the feeling. I also once was young. But after a while, you learn that some things are just not a productive use of time. Overclocking RAM in a Core2 or i5/i7 system is one of them. :)

About whether you are doing something wrong, without looking at all of your settings, I don't know.
----------
Overclocking since 1978 - Z80 (TRS-80) from 1.77 MHz to 2.01 MHz
 
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S

Serveurperso

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English is not my native language.

I have a 2600K manualy set to 100 * 40 and 100 * 45 @ 1.33V with load line calibration to extreme. Mobo Asus P8Z68 deluxe gen 3.

I use exactly this corsair vengence low profile (black modules) 1600mhz ram 9 9 9 24 timings / 1.5V. 4Go * four sticks = 16Go.

I get few (but not on all pass) memtest86+ v4.20 errors at 1600MHz and XMP/Stock manualy set timings and voltage !!!

At 1333Mhz -> no errors, never. It's very CRAP for 1600MHz Corsair memory !!!!!!!!!!!!!!!!

I must make some test @ 1.65 V and VCCIO = 1.2V


Pascal

 
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pcSWAG

pcSWAG

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Jun 19, 2012
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Hi evan,

I OC'ed mine to 1866 using 10 10 9 24 2T @ 1.65 v no errors on a gigabyte 990fxa ud3 with an fx 8120 OC'ed @ 4.4 ghz
my ram is not the low profile.

good luck

mike
 
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H

HMS-ratters

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Oct 24, 2013
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Hi there,

I have that ram but non lp(shouldn't make a difference) and found that if your north bridge is past it's stock frequency your memory will not overclock and fail even below stock, if you've altered your fsb try lowering the NB multiplier
 
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R

rotarydude

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Jan 21, 2014
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I am using 16gb (4x4gb) Vengeance Low Profile kit (as indicated in OP)

My timing is as follow for 1950mhz (I couldn't get 2000mhz stabilize even with very very wide timing) over 48 hours memtest+ and prime95

9-10-9-28-2T @ 1.5v w/ Asus P7P55D-E Pro

PS: I have been running these timing since 2011.
 
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yanis31

yanis31

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my 2x4gb 1866mhz 9-10-9-27 vengeance low profile red runs just fine @ 2000mhz on same timings... i put it to 1.55volts but maybe it can do stock voltage as well - haven't actually tested yet
Gigabyte GA-970A-UD3P / FX-6350
 
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G

Georg Rauh

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Old thread..but nevertheless: I am pretty sure the LP Dimms are the exact same as the normal, higher ones. It's the same timings, except the heatspreader is smaller. My Corsair Vengeance 1600 CL9 which is rated at XMP 1600 (800mhz) overclocks decently. It goes up to DDR-2000 at 10-11-10 which is not too bad. With those modules, you do NOT, EVER, raise the voltage above 1.5V, even when you overclock them. You already made a mistake supplying way too much voltage so I can well assume you also made some other mistakes with timings. IMHO, those kits should hit DDR-2000.
 
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yanis31

yanis31

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tell me more - i have never heard of such a thing...
im also going for 1.55-ish volts since i overclock my fx-6core (currently 8 core) and its advised for a bit more stability...
 
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Y

Yescob

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Jun 4, 2016
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Got my 2x8 corsair vengeance LP from stock 1600mhz to 2133 mhz stable 11-13-13-35 , auto/default volt. According to aida64's memory read benchmark they beat 2133 DDR4 by 800 MB/s. They also rank top 2 in aidas mem latency test on the charts, 56.9 ns compared to 6700k's DDR4 at 60.4 ns.

 
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CLS-PC INTERESTS

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@Yescob Thanks for posting! Question: What motherboard and CPU do you have? I'm using the MSI 970 Gaming with an AMD FX 8350 8 core, with a small overclock at 4.2 Ghz, but my RAM is at stock speed. My GPU is an Nvidia EVGA 1070 overclocked to 2050 Mhz. I basically want to overclock my RAM to 2133. Just wondering if I should even bother because RAM timings are more difficult, so I don't play with that. The other hardware is easier to overclock. Any suggestions? Thanks.
 
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Yescob

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Asus z97-p mobo, a 4790k at 4.8ghz with a gtx 970 SSC at 1500mhz is what i have. For gaming purposes you barely get a boost really with 2133mhz ddr3. You really shouldnt mess with the voltages much either, it either overclocks well or fails at everything above 1600mhz.

I would save up and get a new skylake setup if i were you, z170 mobo, 6600k/6700k with some ddr4's with low timings at 2133mhz or 2400mhz :D

You already got a badass GPU so save up and upgrade instead of potentially destroying your ddr3 sticks for the small gain (very small gain game wise)
 
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G

Georg Rauh

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Apr 6, 2015
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Just a minor correction to the above, the DIMMs are "almost" the same as the "non LP" version, except that the TRFC timing (which you need to set in BIOS) is higher than that of the "non LP version" (the longer ones) dimms. I mixed 2x of the normal sticks with 2x of the LP dimms on my Z87 board, so in BIOS I had to increase tRFC, I set it to 260 to get the 4 dimms to work together. Possible it works wirth a trfc less than 260.

My timings:
CAS Latency (CL) 10T
RAS To CAS Delay (tRCD) 11T
RAS Precharge (tRP) 10T
RAS Active Time (tRAS) 32T
Row Refresh Cycle Time (tRFC) 260T
Command Rate (CR) 1T
RAS To RAS Delay (tRRD) 8T
 
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