Nov 26, 2005
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Hi, I just got done putting together my new 24/7 machine. I am having memory errors, (BSOD) reboots. After I did the OS install, I put the timings to the stated advertised latencies, 4.4.4.12 then that's when the problems started happening. I set things back to auto which gives 5.5.5.18 I'm trying to figure out whats going on here. Here is a link of the SPD, which i'm trying to get some info about, thanks ahead of time.

http://i3.photobucket.com/albums/y88/529th/spd.jpg
 

Cutthroat

Golden Member
Apr 13, 2002
1,104
0
0
Try manually setting your vDIMM to 2.0v and 4-4-4-12. If you're running them at DDR2-800 or above you might need a bump to the northbridge or MCH voltage.
 
Nov 26, 2005
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Its funny. Either its hiding from me, or my bios doesn't have the option for it. I've seen it on my quad machine but not on this one. Running latest bios, 1013
 

DSF

Diamond Member
Oct 6, 2007
4,902
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Sometimes those settings need to be unlocked. Look in your motherboard manual, or perhaps online.
 

n7

Elite Member
Jan 4, 2004
21,281
4
81
How do you know your BSODs aren't from your E8400 being undervolted?

:confused:

Please tell me you've run Memtest86+, with the CPU at stock vcore.

Anyway, you're saying you don't have these options?!

DRAM Frequency
DRAM Timing Control
North Bridge Voltage

And make sure Row Refresh Cycle Time is nice & loose (50+)

I seriously don't know how these options are impossible to find...

Start @ 5-5-5 with all voltages set correctly, then test with Memtest (test 5 is good for quick testing) as you tighten timings.

So try 5-5-5, if that's stable try, 5-5-4, then 5-4-4, then 4-4-4.

/i really need to do up a RAM OCing guide for n00bies don't i...
 
Nov 26, 2005
15,197
403
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Originally posted by: n7
How do you know your BSODs aren't from your E8400 being undervolted?

:confused:

Please tell me you've run Memtest86+, with the CPU at stock vcore.

Anyway, you're saying you don't have these options?!

DRAM Frequency
DRAM Timing Control
North Bridge Voltage

And make sure Row Refresh Cycle Time is nice & loose (50+)

I seriously don't know how these options are impossible to find...

Start @ 5-5-5 with all voltages set correctly, then test with Memtest (test 5 is good for quick testing) as you tighten timings.

So try 5-5-5, if that's stable try, 5-5-4, then 5-4-4, then 4-4-4.

/i really need to do up a RAM OCing guide for n00bies don't i...

I had to open up a setting to manual to see a few of the bios options. I now see the DRAM voltage and i've set that to 2.0v but its still at 2T Setting things to manual also opened the option for vcore voltage option as for the others:

DRAM Frequency is at: 800
Timing control is on manual and at: 4.4.4.12 2T
North Bridge Voltage is on: Auto

Really all i was asking about was the SPD and what EPP meant on that photo :)

Thanks, I'll try the memtest.

-529th

EDIT: i never under-volted the vcore and here is a SS the cpu under load:
http://i3.photobucket.com/albu...529th/e8400voltage.jpg

EDIT2: Funny thing about Memtest86 is i ran it for 4hrs one day testing the old DDR3 1333 and it tested out fine. Used Memtest also and it tested fine beyond 100%. Then, the OCCT RAM test, it failed. Do you think the OCCT RAM could be pushing the puter too much?
 

n7

Elite Member
Jan 4, 2004
21,281
4
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Sorry, was going based on your signature.
Why does it say 0.968v?

I wouldn't leave NB voltage auto, or anything important voltage on auto for that matter, as that will tend to result in either too higher or too low.
It doesn't mean it stays at defaults, it means the mobo adjust it as it fancies, which isn't ideal.

As for why OCCT would fail but not Memtest?

There's at least two possibilites.
-unstable NB
-unstable CPU

I prefer to use HCI Memtest myself for testing RAM, since it stresses the NB as well.
Memtest doesn't stress the NB much.
 
Nov 26, 2005
15,197
403
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Originally posted by: n7
Sorry, was going based on your signature.
Why does it say 0.968v?

I wouldn't leave NB voltage auto, or anything important voltage on auto for that matter, as that will tend to result in either too higher or too low.
It doesn't mean it stays at defaults, it means the mobo adjust it as it fancies, which isn't ideal.

As for why OCCT would fail but not Memtest?

There's at least two possibilites.
-unstable NB
-unstable CPU

I prefer to use HCI Memtest myself for testing RAM, since it stresses the NB as well.
Memtest doesn't stress the NB much.

For some reason, the voltage lowers with that speed step thing when at 2Ghz and thats ~ what i get, it rarely breaches 1.0xxv

The OCCT failure was on my old system, sry btw. Haven't tried it yet on this e8400

I have the DRAM set to 2.0v which advertising indicates as stock, but I'm not sure about the cpu or northbridge... hmmm