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E6300 Unstable Using Wusy's Guide/ No heat problems

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September 14, 2006 12:16:28 AM

So Ive followed Wusy's guide to a tee and I cant get my E6300 to run stable.

Specs:
E6300
2GB OCZ Gold OCZ2P800R21G
Gigabyte P965DS-3
Thermaltake 500W PS

I performed SuperPI, dual Prime95 and memtest86 at stock levels, all of which ran fine.

Then I crank up the voltages and the FSB (and everything else in the guide) and the BIOS will post but then most stability tests fail.

When I calculate SuperPI to 1MB, its fine; to 4MB it has a rounding error.

Temperatures on the core are at 30C and I'm assuming on the northbridge (cant tell what sensor its reading) is 39C. Never fluctuating more than a few degrees.

What should I do?
September 14, 2006 1:19:06 AM

don't do everything at once. its bad for your comp. change settings 1 or 2 at a time and reboot. there is the odd chance that you got the worst allendale in the world lol
September 14, 2006 2:05:17 AM

How dependant is SuperPI and Prime95 on the ram being used?

I tried running Prime95 on the torture test that has very limited RAM testing and it passes. It fails other P95 tests and SuperPI at 4MB.

Like I said, it passes memtest86...

Basically it fails on everything because of rounding...

Also, anytime I change the FSB, my voltage reading in cpu-z jumps! From <1.3 to 1.42!
Related resources
September 14, 2006 6:51:56 PM

Quote:
How dependant is SuperPI and Prime95 on the ram being used?

I tried running Prime95 on the torture test that has very limited RAM testing and it passes. It fails other P95 tests and SuperPI at 4MB.

Like I said, it passes memtest86...

Basically it fails on everything because of rounding...

Also, anytime I change the FSB, my voltage reading in cpu-z jumps! From <1.3 to 1.42!


This would from the F4 or above bios. Set the voltage manually to solve this problem. Sounds like memory not able to run at full speed or NB problem.

Don't follow the guide. Try dropping the Vdimm to +0.2. put MCH back to default. Put FSB, PCI-E back to default. Try booting up at 300mhz first. only up the voltages when you need them, extra voltage=more heat and shorter lifespan.

Wusy's guide would work if every board was an exact replica of each other. Unfortunately, that is not the case.
September 14, 2006 9:54:22 PM

Yeah, I figured that wusy's just wasnt going to work perfectly with this so I set it back to last know good settings...

last configuration that works is as follows:

320 fsb
+0.3 VDIMM
*all inhibiting settings disabled*
PCI FSB locked at 100

Everything else has been kept normal or in auto mode. This setting was able to run dual prime95 stable in small FFT, large FFT and Blend.

Anything else will results in a fail in the Blend torture mode. Does this mean that its my memory thats failing? Timings are relatively conservative at 5-5-5-15 when its rated at 4-4-4-15 at 800. Will memtest86 be able to show problems with my memory? I've already made several successful passes though...

Should I RMA the memory?
September 14, 2006 11:49:19 PM

Done.

Im still having trouble breakin the 325fsb barrier...

Settings are as folllows:

FSB322
Vcore: 1.375
Manual Memory timing 4 4 4 15
VDIMM +.3V
Auto PCIe

I've gotten a lot of help from OCnewb and we were talking about memory timing. I understood that tighter timings will hurt stability is that correct? OCnewb, however, has had luck with tighter timings... can anyone confirm which is correct?
September 15, 2006 12:57:57 AM

Ill do that. Did you mean 4-5-4-15 timing? My DRAM is rated 44415 for 800Mhz.
September 15, 2006 1:43:12 AM

what version of bios are you running?

I was completely stuck at 325 stable on F4 final but I got F5 final right now and i was running all last night at 340 but I don't have much time right now to test it much yet till the weekend.

try to put Vdimm to +0.2, a higher vdimm can actually hurt stability from my experience.

I have also noticed a slight correlation in people using OCZ memory and the DS3, I remember someone posting a topic and other people had similar problems in XS.

Don't take my comments as concrete "you have to do" type of thing. Everyone runs their own settings. I've seen people running 400mhz on stock voltages except for ram. Luck of the draw on the components.

BTW when you use cpuz 1.36 what is rev on mobo? Just curios.

EDIT: i'd drop teh Vcore back to 1.35 or something, if you can run small FFT then it is not the CPU's fault.
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September 15, 2006 2:07:50 AM

Are those temps idle or load? Also how far can you overclock with no increase in voltages? When you work that out, up one voltage at a time, and if it still fails, drop it to default and up a different one; that way you can work out what is needing more power. Just dont overdo it, small increases can have big impacts, especially with vcore.
September 15, 2006 2:36:56 AM

changing the bios (knock on wood) has seemed to cure the problem..temporarily at least. Not sure why this small update would break the barrier.

trickst4r, i too hit a wall at 325 and right now it is stable at 333 for the first time.

I initially put the Vcore at 1.35 and right now it doesnt need to be moved. I figure it will give me some head room for a while.Temperatures are not a problem, even at load they dont exceed 44C, im currently using a zalman 9500.

i will, but hopefully not, be back with questions and full summary of results.
September 15, 2006 2:53:32 AM

i'll tell you how the F5 helps or not help me out after I take some time with it this weekend.

The F5 bios had something to do with 667 ram and my instinct would be that for some reason OCZ memory had problems that was fixed with that bios but I can't confirm that F5 did solve anythign just yet.
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September 15, 2006 4:46:44 AM

Quote:
I initially put the Vcore at 1.35 and right now it doesnt need to be moved. I figure it will give me some head room for a while.Temperatures are not a problem, even at load they dont exceed 44C, im currently using a zalman 9500.

Those temps are good, wont limit you there. Just remember next time you post to include load temps too rather than just idle, since a cpu may be stable at 40C, but as soon as you put it under load and it hits 55C, your stability goes out the window.
September 15, 2006 5:55:37 AM

I have now been able to run a FSB of 359, which equates to over 2.5, dual SuperPI stable and dual prime95 stable.

Dual SuperPI stable at 365 took relaxing the timings down to 4-5-4-15.

Seemingly with a sixth sense (considering Ive had experienced a unstable machine many times), I can feel a wall coming. I still have Vcore at a mild 1.35 but I dont forsee changing that.

With no temperature problems (idle 31C/35C, dual Prime95 40C/41C Core/System(Northbridge?)) I dont know what I should change further. Dimm voltage is already up to 2.1V, supposedly the rated voltage for the ram. What else should I look at?

The memory, link below, is rated at 44415 for 800Mhz, but SPD claims 55515, which is more accurate? I suppose I could always relax the timing...shouldnt they at least perform to spec?

http://www.newegg.com/Product/Product.asp?Item=N82E1682...
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September 15, 2006 6:46:29 AM

Yea advertised spec/SPD are the settings the RAM is guarenteed to run at, if it doesnt, then its faulty. It may or may not be able to run any faster at all. It doesnt have to to meet specs. Try upping the the northbridge voltage a little. +0.1V should be enough, +0.2 max, since large increases make no more difference than small ones, except for excess heat and shorter lifetime.
September 15, 2006 7:16:33 AM

Im thinking about not RMAing it because im building it for a friend and they are frankly content with the OC.

However, if my friend chose to return it, couldnt they always call OCZ and tell them it doesnt run at its advertised speeds and get a replacement?

Now walled at 359FSB. Keep failing dual prime at 365FSB...

Temperatures are loaded at 41-44C
September 15, 2006 2:25:07 PM

Just for sh1ts and gigles try lowering your vdimm to +.1 and see if you can get past 359. I know it sounds odd but i had problems like yours and it was my memory, lowering the vdimm let me push it further.
September 15, 2006 9:07:22 PM

For shiz and giggles indeed. It is now running stable at 360 after 5 passes on memtest #5 and on the second our of dual prime95 after reducing VDIMM to +.1V. Maybe the 2.1V recommendation is only for running at 800Mhz.

But as I mentioned before, couldnt I return this to OCZ this at anytime if it doesnt run to spec?
September 16, 2006 11:42:52 AM

Yah wusy your correct, only things you really need to change to reach 400 on the E6300 and E6400 is:
Mem Timing/Voltage (specific for your mem)
And manually set your vcore to 1.35 (if u leave it at normal it runs it at 1.4 ?)

heres a pic

September 16, 2006 1:08:01 PM

F5 bios fixed my FSB wall. I'm sitting at 365 and seems pretty stable, gonna OC it a bit more now.
September 16, 2006 1:50:15 PM

what are the changes with F6b?
September 17, 2006 1:11:17 AM

I agree. Easily, but tentatively, carried stability into 400FSB.
For this specific ram:

OCZ Platinum Rev 2 OCZ2P800R22GK
I would recommend a DIMM voltage of +0.1V and 4-4-4-15 timings.

My other specs include:
All extraneous settings/options disabled
Auto PCIe
Manual Timings
1.35V Vcore (although I do see it dip to 1.32 usually via cpuz)
F5 Bios

How high has everyone else gotten their FSB with air cool?
September 17, 2006 11:32:35 AM

ill let you know when i get my new mem =) im thinking around 480 ish
September 17, 2006 1:38:10 PM

Quote:
I agree. Easily, but tentatively, carried stability into 400FSB.
For this specific ram:

OCZ Platinum Rev 2 OCZ2P800R22GK
I would recommend a DIMM voltage of +0.1V and 4-4-4-15 timings.

My other specs include:
All extraneous settings/options disabled
Auto PCIe
Manual Timings
1.35V Vcore (although I do see it dip to 1.32 usually via cpuz)
F5 Bios

How high has everyone else gotten their FSB with air cool?


i'm stuck at 390FSB, but im at +.2 for VDIMM, gonna try it out a bit later on.
!