**Official e8400/e8500 Retail OC Thread

[Cordovader]

Here´s mine



Q740A519
500x8 1,27v
Thermalright Ultra Extreme + Zalman ZM-F3

[Chicco85]

Mine is an E8500 Q743A... You will see some results as soon as possible.

[emoners]

@TSFroggy: oh i didn't know you can do a .5 multi on the E8400... i thought it was just in whole numbers...

[icywater]

@TSFroggy: oh i didn't know you can do a .5 multi on the E8400... i thought it was just in whole numbers...

yes you can choose 0.5 multi for E8x00 .

[sofarfrome]

Here is my initial 24/7. 4.3GHz at 1.344vcore.

Blood Iron
E8400 Q743A
eVga 8800Gt 512MB (700:1000 clocks)
Crucial Ballistix DDR2-667 2x1GB
Corsair HX620
WC: D-Tek Fusion, BIX lll, Swiftech D655
Vista 32

I need to get my temps down (lapping, reseating, etc.)

[zakelwe]

Dynamic VID's.

Mine is stationary, however when I had an old Asus P5K BIOS it showed 1.000 in coretemp program and now I have updated the BIOS it shows 1.125. I always thought the VID was programmed into the cpu but i guess the BIOS sets the VID. Have to confess I am no expert in these things.

Regards

Andy

[Zeus]

Dynamic VID's.

Mine is stationary, however when I had an old Asus P5K BIOS it showed 1.000 in coretemp program and now I have updated the BIOS it shows 1.125. I always thought the VID was programmed into the cpu but i guess the BIOS sets the VID. Have to confess I am no expert in these things.

Regards

Andy

I've seen several people reporting this, rather strange occurence, one would expect the VID of the cpu to be programmed into the cpu, just like the cpu-id.

So after all, you have the same cr@ppy cpu like me.

Did you try somethin' like 1.6V+ on that cpu yet Andy, cause i'm about to?

[Grnfinger]

been running my 8400 for almost 2weeks with no problems

last 2 days I'm getting BSOD "IRQL not less or equal to" on a cold boot only, and have made NO changes to my setup. Once the pc heats up this goes away and it never happens the rest of the day. If however I turn the pc off for an extended period of time, when I start it up again the BSOD is back.
What exactly is this error, I have adjusted FSBT volts and upped my ram volts, is there anything I should be looking at?
I updated Intel Matrix Storage
Any help/advice would be appreceiated

[eva2000]

Here's my E8500 Q740A493T 2L7**** / **1808 for Prime95 @4000Mhz on 2 different motherboards with different cpu cooling.

Asus Blitz Formula with Dtek Fuzion/Thermochill HE120.3/Alphacool AP1510 @15v
vs
DFI LP LT X38-T2R with Corsair Nautilus 500

As you can see the Dtek Fuzion H20 setup is much better at cooling cpu with 47C load at 33.8C max room temps versus Corsair Nautilus 500 at 57C load temps in much cooler 29.5C max room temps. Hence, the cpu on DFI X38 + Nautilus 500 setup needing slightly more vcore of 1.312v load instead of 1.304v load.

Dtek Fuzion cooling = 13.2C CPU load to Room max temp delta
vs
Corsair Nautilus 500 cooling = 27.5C CPU load to Room max temp delta


================================================== ====
System

• Intel Core 2 Duo E8500 Q740A493T 2L7**** / **1808
• CPU Cooling: Dtek Fuzion Rad Tower Box (Thermochill HE120.3/Alphacool AP1510 @15v)
• Asus Blitz Formula 1205 bios
• 128MB Gainward FX5200 PCI
• 2x1GB Crucial Ballistix Tracer PC2-8500 dual channel kit (white dimm slots)
• Memory cooling: 120x25mm Thermaltake 81cfm fan
• 80GB Hitachi 7K80 SATAII
• Pioneer DVD-RW
• 620W Corsair HX620 PSU supplied by Corsair
• WinXP Pro SP2 Nlite Fully Updated.

Room temp: 30.4C to 33.8C

4000Mhz - 9.5x421FSB at 1.3375v bios (1.304v windows load)




================================================== ====
System

• Intel Core 2 Duo E8500 Q740A493T 2L7**** / **1808
• CPU Cooling: Corsair Nautilus 500 H20
• DFI LP LT X38-T2R 12/28 beta
• 128MB Gainward FX5200 PCI
• 2GB Crucial Ballistix Tracer PC2-8500 dual channel kit (green dimm slots)
• 750GB Samsung HD753LJ
• Pioneer DVD-RW
• 700W OCZ GameXStream
• WinXP Pro SP2

Room temp: 28.1C to 29.5C

4000Mhz - 9.5x421FSB at 1.2875v bios (1.312v windows load)

[mele]

BatchQ746A377

The best I can get to is 4G @ 444 FSB on my EVGA 680i. This is on a replacement MB that I received on RMA old MB did the same so I'm not sure if it's the MB or if the MB has screwed my RAM and it's the problem as I can't seem to get my ram to go over 900Mhz now.

8 hours Orthos max temp 51c (still running as I type this). However the air coming off the top rad on my system is barley lukewarm at best.
Chip seems to run real cool!

Mel

[rge]

been running my 8400 for almost 2weeks with no problems

last 2 days I'm getting BSOD "IRQL not less or equal to" on a cold boot only, and have made NO changes to my setup. Once the pc heats up this goes away and it never happens the rest of the day. If however I turn the pc off for an extended period of time, when I start it up again the BSOD is back.
What exactly is this error, I have adjusted FSBT volts and upped my ram volts, is there anything I should be looking at?
I updated Intel Matrix Storage
Any help/advice would be appreceiated

My E6850 was very stable at 3.9 (orthos 15hrs plus), but I ran it at 4.0 (orthos stable for 6-9 hrs then usually fail). I could do anything for weeks at a time, but eventually start getting BSOD's or reboots. Reinstalling windows from a fresh image (3 minutes) would solve problem, but in time would get other problems. At 3.9, never crashed once.

Yesterday my E8400 was being a little flaky I thought, but then ran memtest on my 6 month old corsair PC8500 and got 12 errors halfway into first pass. I am running my memory faster with E8400, and thus was getting more errors since my memory is going bad (stock settings fills page with errors).

Your running two components on the edge, ram and cpu, either one could over time corrupt windows if unstable, or windows may not be corrupted, your system may just be unstable.

Granted could be other things, but if me, I would
1) run memtest, newest version for 3-5 passes. If errors, back down mem speed/timings, and try again.
2) If memory ok, I would back down OC to 4.2, get orthos stable 12hrs., and try. If still problems, reinstall windows and leave on stable settings for a while and try (windows can get corrupted from crashes from unstable settings).
3) the best OCing software I ever bought was backup imaging software. Fixes all software BSOD's in 3minutes (fresh reinstall of OS and all prgrams)

[kiwi]

Maybe we should open worst chips section too I have 2 chips that require 1.45V (real) to be stable @ 4Ghz. Pretty bad in comparison to others but sure nothing to complain about I will get 2 more chips to test on monday

[karateo]

================================================== ====
System

• Intel Core 2 Duo E8500 Q740A493T 2L7**** / **1808
• CPU Cooling: Corsair Nautilus 500 H20
• DFI LP LT X38-T2R 12/28 beta
• 128MB Gainward FX5200 PCI
• 2GB Crucial Ballistix Tracer PC2-8500 dual channel kit (green dimm slots)
• 750GB Samsung HD753LJ
• Pioneer DVD-RW
• 700W OCZ GameXStream
• WinXP Pro SP2

Room temp: 28.1C to 29.5C

4000Mhz - 9.5x421FSB at 1.2875v bios (1.312v windows load)

is it possible to post full bios settings?
especially voltage settings (VTT and GTLs)

thanks

[Grnfinger]

My E6850 was very stable at 3.9 (orthos 15hrs plus), but I ran it at 4.0 (orthos stable for 6-9 hrs then usually fail). I could do anything for weeks at a time, but eventually start getting BSOD's or reboots. Reinstalling windows from a fresh image (3 minutes) would solve problem, but in time would get other problems. At 3.9, never crashed once.

Yesterday my E8400 was being a little flaky I thought, but then ran memtest on my 6 month old corsair PC8500 and got 12 errors halfway into first pass. I am running my memory faster with E8400, and thus was getting more errors since my memory is going bad (stock settings fills page with errors).

Your running two components on the edge, ram and cpu, either one could over time corrupt windows if unstable, or windows may not be corrupted, your system may just be unstable.

Granted could be other things, but if me, I would
1) run memtest, newest version for 3-5 passes. If errors, back down mem speed/timings, and try again.
2) If memory ok, I would back down OC to 4.2, get orthos stable 12hrs., and try. If still problems, reinstall windows and leave on stable settings for a while and try (windows can get corrupted from crashes from unstable settings).
3) the best OCing software I ever bought was backup imaging software. Fixes all software BSOD's in 3minutes (fresh reinstall of OS and all prgrams)

I have ran OCCT 3 hours and prime blend test 3 hours and it passes without errors, have yet to run memtest cause I was passing the blend test.
I know 3 hours is a quick run but it was 15 hours stable on my final test a week ago.
I have ran my ram at 1247MHz without errors so well I'm not 100% I am confident its not a ram issue. I run my ram at 1199MHz with my quad and have never seen this issue b4. Also my downloads are not corrupt usally with bad ram you get crc errors and I have none.
I will take your advice and check my ram and try a lower clock and see if the issue is still present, I was leaning towards the Matrix Storage Manager, I have read that enabling the write back cache can sometimes have a negative effect.

[mrcape]

Dynamic VID's.

Mine is stationary, however when I had an old Asus P5K BIOS it showed 1.000 in coretemp program and now I have updated the BIOS it shows 1.125. I always thought the VID was programmed into the cpu but i guess the BIOS sets the VID. Have to confess I am no expert in these things.

Regards

Andy

Did you check both with power saving disabled? Sometimes you can get a different vid show up with power saving turned on in bios.

[MAXLD]

4GHz finally... but with "1.38V cpuz" (1.4125V bios), 8.5 multiplier and 1:1 ratio.
3min Orthos is not much yet, but it's a lot better than the previous attempts (<9sec errors). I'm using Intel stock cooling and with stock thermal compound , still waiting for some missing screws for my Noctua NH-U9F. I hope to get at least better temps then.

I've tried:
- lowering voltage to "1.36V cpuz" (1.3875 bios) -> Orthos errors
- raising the memory clock to reach DDR2-1132 (566MHz) -> Orthos errors
- lowering timings to 4-4-4-12 @2.15V -> Orthos errors

[rge]

I have ran OCCT 3 hours and prime blend test 3 hours and it passes without errors, have yet to run memtest cause I was passing the blend test.
I know 3 hours is a quick run but it was 15 hours stable on my final test a week ago.
I have ran my ram at 1247MHz without errors so well I'm not 100% I am confident its not a ram issue. I run my ram at 1199MHz with my quad and have never seen this issue b4. Also my downloads are not corrupt usally with bad ram you get crc errors and I have none.
I will take your advice and check my ram and try a lower clock and see if the issue is still present, I was leaning towards the Matrix Storage Manager, I have read that enabling the write back cache can sometimes have a negative effect.

Actually if you get the error message again, get the whole error message (specifically the name of file at fault). And search google on that file name and see if part of matrix storage, esp if driver file.

A google search on that error message, most found it to be bad ram or driver conflict. And if you updated matrix drivers...can you roll back those drivers.

[ArCElM]

Hmm - I was wondering, does anybody have any idea why everest refuses to bench my L2 cache?



Everytime I have done that cache and memory bench I get a row of 0's in L2 - everything else works 100&#37; fine - ORTHOS, Sandra, Games, 3dmark01/05/06, memtest - EVERYTHING.

[PytonOrm]

Q748A142 fsb testing with Asus commando, cooling tuniq tower 120

http://valid.x86-secret.com/show_oc.php?id=306427

all voltages "auto"

[sofarfrome]

Some more SS with 4.4GHz. Regardless of percieved temp issues these CPUs rock.

Blood Iron
E8400 Q743A
eVga 8800GT 512MB (700:1000 clocks)
Crucial Ballistix DDR2-667 2x1GB
Corsair HX620
WC: D-Tek Fusion, BIX lll, Swiftech D655

[MAXLD]

Hmm - I was wondering, does anybody have any idea why everest refuses to bench my L2 cache?



Everytime I have done that cache and memory bench I get a row of 0's in L2 - everything else works 100% fine - ORTHOS, Sandra, Games, 3dmark01/05/06, memtest - EVERYTHING.

I think your Everest is not updated... it seems not even detecting well your cpu...

[UnSeenSVK]

can somebody tell me how is called that program on the right side of this picture?..please...thanks...

http://img227.imageshack.us/my.php?image=ppppza0.jpg

[ThatGuy16]

can somebody tell me how is called that program on the right side of this picture?..please...thanks...

http://img227.imageshack.us/my.php?image=ppppza0.jpg

I'm not 100&#37; sure, but it looks like Serious Samurize, a program that you design and set it up yourself as to what you want it to monitor and look like.

Thats what it looks like to me, but im not sure. eva2000 can confirm what exactly it is

[Zucker2k]

I'm not 100% sure, but it looks like Serious Samurize, a program that you design and set it up yourself as to what you want it to monitor and look like.

Thats what it looks like to me, but im not sure. eva2000 can confirm what exactly it is

It's Everst OSD!

[UnSeenSVK]

thanks