ocz4000vx wont do 400ddr 2-2-2-8 @ 3.2v?

[Phoenix87]

Just got my new sticks of OCZ 4000VX EL and having problems with it. Im trying to do DDR 400 with 2-2-2-8 @ 3.2v but windows locks up before it finishes loading. Tried so many different settings but still get lock ups.

Ive also tried running at the rated timings of DDR500 with 2-2-2-8 @ 3.2v but instead of windows locking up it resets right before it gets to the loading screen. Although I know the official specs require 3.3v for DDR500 with 2-2-2-8 but ive read of many people able to do it with just 3.2v.

Anyone have any advice for me to get this memory to run right?

[Jcollins82]

Are only adjusting those settings? Or are you changing other RAM settings as well?

[Phoenix87]

Just those.

Ive expeiremented further and can boot up into windows with just a single stick of ram @ DDR400 with 2-2-2-8 @ 3.2v. If I try and do DDR500 windows just stays at the loading screen.

[crimedog]

if the single sticks will do it and the gig won't than you're doing something wrong in bios

[Phoenix87]

Now I can boot up with DDR400 with 2-2-2-8-T2 @ 3.2v. If I try T1 windows give me the blue screen right as Im logging in.

[Phoenix87]

This is getting frustratting. Ive tried to many options yet I cant get it even close to rated timings.

[crimedog]

rma it

[RJARRRPCGP]

Maybe you're case cooling isn't sufficient. I remembered getting lock-up crashes with just a minor RAM OC and the symptom seemed to go away after blowing AC air into the case!

[Phoenix87]

I highly doubt its heat since my case has good cooling.

This memory must just be bad. Anything other than DDR400 2.5-3-3-7 and it crashes hard. Nothing else works no matter what voltage I apply.

edit; I found something while looking threw CPU-Z about my memory. It is identified as "OCZ5001024DCGEVX-L" while the part number listed on the box is "OCZ5001024ELDCGEVX-L". Maybe this is what is causing my problems?

[Otter]

This is kindof obvious, but it hasn't been mentioned yet. Did you try a lower CPU multiplier? Another obvious one, just to be sure: did you lower your HTT bus multiplier so the bus wouldn't go over 1000?

edit; I found something while looking threw CPU-Z about my memory. It is identified as "OCZ5001024DCGEVX-L" while the part number listed on the box is "OCZ5001024ELDCGEVX-L". Maybe this is what is causing my problems?
Yeah, that does look like you got RAM from the vanilla bin when you paid for Enhanced Latency. PM SteveOCZ, he should be able to tell you for sure.

[SteveOCZ]

Yeah, that does look like you got RAM from the vanilla bin when you paid for Enhanced Latency. PM SteveOCZ, he should be able to tell you for sure.

We don't sell VX memory that is not EL so what ever the ID string on the memory says is unimportant.

@Phoenix87

First off can you clear your CMOS using the jumper on the motherboard. Then lower your CPU speed to close to stock and then test your memory again at stock speeds. Make sure you have the memory in slots 1+2 or 1+3 and not 2+3 as that will not work.

Once you've set those timings get memtest onto a CD and test out the set at DDR500 2-2-2-10-1T timings and 3.2V (you may need to figure out a way to set 3.4V in the bios since the board does sag at least 0.3-0.5V from what you set in the bios). If you get errors at this speed try testing each stick on it's own.

Can you let me know which PSU, video card and CPU cooling you've got? Also if you haven't already flash to the newest bios

Let me know where this gets you

[fldrice]

I heard the new DFI NF3 Ultra-D has some issues with memory settings, so you might want to look into a beta bios update.

[Otter]

You might ask over on dfi-street.com too. Someone over there might know about one of the more obscure settings, like drive strength, that will help you get the most out of your RAM on that board.

[Phoenix87]

We don't sell VX memory that is not EL so what ever the ID string on the memory says is unimportant.

@Phoenix87

First off can you clear your CMOS using the jumper on the motherboard. Then lower your CPU speed to close to stock and then test your memory again at stock speeds. Make sure you have the memory in slots 1+2 or 1+3 and not 2+3 as that will not work.

Once you've set those timings get memtest onto a CD and test out the set at DDR500 2-2-2-10-1T timings and 3.2V (you may need to figure out a way to set 3.4V in the bios since the board does sag at least 0.3-0.5V from what you set in the bios). If you get errors at this speed try testing each stick on it's own.

Can you let me know which PSU, video card and CPU cooling you've got? Also if you haven't already flash to the newest bios

Let me know where this gets you

Just got run memtest with your suggested settings but it wont pass. At 40% on test 5 I get thousands and thousands of errors. Ive tried different slots and just one stick at a time and still get errors. Even using automatic timings at 250mhz I still got thousands of errors on test five. The best I can manage is 225mhz @ 2.5-3-3-8 1T. Ive tried updating the bios to 628 but windows wont load so I had to go back to 602.

My PSU is a aspire 500watt. For CPU cooling im using the stock 3200 heatsink and same for video card(although its a massive heatsink).

[SteveOCZ]

Hmm this is strange. Can you give these bios settings a try. Start at 200FSB and work your way up.

Dram Frequency Set(Mhz)= 200(Mhz)(1/01)
Command Per Clock(CPC)= Enable(1T),
Cas Latency Control(tCL)= 2
RAS# to CAS# delay(tRCD)= 2
Min RAS# active timing(tRAS)=10
Row Precharge timing(tRP)= 2
Row Cycle Time(tRC)= 7
Row Refresh cyc time(tRFC)= 16
Row to Row Delay(tRRD)=03
Write Recovery Time(tWR)= 3
Write to read Delay(tWTR)= 1
Read to Write delay(tRTW)=3
Refresh Period(tREF)= 3072
Write CAS# Latency(tWCL)= 1

DQS skew Contro= Increase Skew
DQS Skew Value= 43
DRAM Drive Strength= Level 2
Max Asynce lantency=7ns
Read Preamble time=5ns
Idle Cycle Limit= 256 (if I remember correctly)
Dynamic Counter= disable
R/W Queue Bypass=8x
Bypass Max= 07x
32 byte Granulation=Disable(8burst)

[Phoenix87]

Just got done trying your suggested settings and still get errors(about 5700) at 40% on the 5th test. I lowered the voltage to 3.0v and still got around 5800 errors. I tried 250mhz but wouldnt but couldnt get past the cpu/memory/HD info screen(never been able to with 2 sticks @ 250mhz) but was able to with only a single stick. With only 1 stick going it still produced errors(this time 20,000+) at 40% on test 5.

[Goatman]

try it in a mate's PC. If that doesn't work, i suggest you RMA your ram. :shrug:

[SteveOCZ]

Phoenix87 check your PM's

Thanks