**Official e8400/e8500 Retail OC Thread

[GFDuke]

Very Nice Flesh!! Thanks for the info. Can you run 3D marks?

[flesheatinvirus]

Absolutely, up to about 4850 then things get a little wierd. Here is 3DM06 at 4800 with a single 8800. http://service.futuremark.com/compare?3dm06=5187654

[nama]

Hey Nama, that's an interesting thought. Thanks for sharing the info and glad to hear you got your stability back.

For the record, in my case a re-flashed bios and a fresh windows install didn't cure anything. I was really hoping it might, but nope. I do have another P35, P5K-Premium brand new still in the box that I could try, but not another DFI. I'm also going to try a fresh kit of ram tomorrow night.

yea coz i also noticed that when i changed say northbridge voltage i would get a det ram msg on my lcd poser and system wouldnt boot. am no expert but the northridge/memory subsystem is my choice for problem area. try it on the other board and see how it goes.. if it can oc at the same or lower voltages then good or maybe slightly higher. i wish i had a lab to do all this testing

[GFDuke]

Nice job Flesh. I'm going to give some of your settings a shot. I'm not sure it will work out though. we
have different mobos. i havnt had a chance to work with the ballistix and i am new to ddr2. So i think your settings might help me some.

[Ymir]

Nice job Flesh. I'm going to give some of your settings a shot. I'm not sure it will work out though. we
have different mobos. i havnt had a chance to work with the ballistix and i am new to ddr2. So i think your settings might help me some.

They should translate O.K.

[GFDuke]

Whats your vdimm at with those timings.

[Ymir]

Whats your vdimm at with those timings.

Mine, or his? I assume you mean his, correct?

[GFDuke]

lol yea his. Sorry about that.

[flesheatinvirus]

Thats true Im running a P35 which really likes Kents and Wolfs a like but the evGa is a solid board. I have an older Ultra D system with Opty 170 at 3G on water which cranks and is what Im typing this on. These Wolfdales are certainly moody compared to my Quad and may have some issues but so far Im pretty impressed for the price. DDRv is normally 2.4 on my Ballistix.

[HDCHOPPER]

Thanks man... I'll take that as a compliment. Well I really just followed some instructions on the overclocks here and as well with the overclocks over at the 780i discussion thread.

The best part about is my temps never went above 45. Right now i'm prime95 a 3.6 with volts at 1.176, will this be enough? I hope! I want this sucker to last at least a good year or maybe two!

3.6 at 1.176 !! exellent ! and ya you cant go wrong listing to the great overclockers here on the XS forum sum of the best in the world are here

[nama]

Im still testing my 745A576 as well though I have not found any drop in performance yet after about a month and have been pushing it past 4800 for brief periods. My test system has a killer cooling setup with seperate loops for chip and card which helps but theres more to this Im sure. Im currently at 4510mhz at 1.46v bios,CPU PLL 1.50v,FSB term 1.30v,NB 1.40v,SB 1.05v,CPU-GTL 0.57,NB-GTL 0.61,CLK overcharge 1.00v with the ram at 600 running smooth. Running Line Load Cal disabled works better with this Wolfdale then my Quad which needs it. I just ran this ten minutes ago.

can it pass prime?

[techguy2k5]

Got my Q746A483 @ 9x445 1.36V (load, set to 1.465 in BIOS on Abit IP35-E = mad vdrop). Stable in Windows but my cheapo Geil DDR2 800 can't take the o/c no matter the voltage or timings so I think I'll have to replace it. Orthos small FFTs ran for an hour and a half without issue, but I fail memtest #7 and FAH causes reboots within minutes.

[HaTaX]

That's strange about the memory not liking 445 (890mhz). I have really cheap sticks, OCZ vista upgrade 4gb set that I picked up for $75 and it did fine up to 920 or so with no errors. Can't go much beyond that though even with loosening up the timings considerably.

Have you tried one stick at a time to see if you can pass memtest with one stick or the other?

[unclewebb]

SuperPI 1M = 10.750s



I'm close to the wall with air cooling, PC2-6400 ram and an old P965 board.
Anyone doing better without exceeding 1.40 volts?

Here's the link to the previously mentioned store that has lots of Xeon E3110 in stock. Same specs as the E8400 but the Xeon are usually binned and should do higher MHz with less voltage.

Tom's Hardware has a good E8400 overclocking review. Page 6 has a picture of exactly where the cores lay beneath the IHS. Looks like they learned the hard way about the solder!

[Xvys]

No problems with this ram, but thought I would try a lower cpu voltage...

[Hughyhunter]

Absolutely, up to about 4850 then things get a little wierd. Here is 3DM06 at 4800 with a single 8800. http://service.futuremark.com/compare?3dm06=5187654

Incredible score for one 8800 ultra.

How on earth do you get it to boot at that FSB? I will be lucky to get mine to 4.5GHZ. I wont go above 1.4v as I want this chip to last as long as possible. But I am very curious as to see if I can break the 20K in 3dmark. That would be something to brag about... and on air! wow!

[g1raffe]

Incredible score for one 8800 ultra.

How on earth do you get it to boot at that FSB? I will be lucky to get mine to 4.5GHZ. I wont go above 1.4v as I want this chip to last as long as possible. But I am very curious as to see if I can break the 20K in 3dmark. That would be something to brag about... and on air! wow!

Go for it, 1.4V is nothing for benchmarking, many of us here would go to around 1.7V or so. Just run <1.4V 24/7.

[flesheatinvirus]

can it pass prime?

I did 13.5 hours of Orthos small FFT continuous with no problems last weekend at 1.46v.

[flesheatinvirus]

Incredible score for one 8800 ultra.

How on earth do you get it to boot at that FSB? I will be lucky to get mine to 4.5GHZ. I wont go above 1.4v as I want this chip to last as long as possible. But I am very curious as to see if I can break the 20K in 3dmark. That would be something to brag about... and on air! wow!

That took about 1.62v on CPU with 1.40 fsb and 1.55nb but it was stable on this P5K prem, my Quad at 4130mhz with the same card did just over 18K. For small bench runs its ok as long as you have great cooling. Here is Aquamark3 at 4850mhz.

[PhilDoc]

SuperPI 1M = 10.750s



I'm close to the wall with air cooling, PC2-6400 ram and an old P965 board.
Anyone doing better without exceeding 1.40 volts?

Here's the link to the previously mentioned store that has lots of Xeon E3110 in stock. Same specs as the E8400 but the Xeon are usually binned and should do higher MHz with less voltage.

Tom's Hardware has a good E8400 overclocking review. Page 6 has a picture of exactly where the cores lay beneath the IHS. Looks like they learned the hard way about the solder!

The time is poor and I'm sure many could do much better.

[unclewebb]

The time is poor and I'm sure many could do much better.

The 9 second or sub 9 second SuperPI runs with these new processors at insane core voltages is very impressive. I'm more interested in what they can do at a safe 1.40 volts. I realize my abused E8400 is far from golden. That's why I wanted to compare it to other users. With an extra 100 MHz you beat my time by less than 0.050 seconds. Good work.

[AriciU]

Got my new one today. Q745A809. 745's love volts, kept VTT and NB at minimum for 24/7 to be on the safe side this time. It was stable at 4.2 at same volts but needed 1.35v VTT... too much for daily use IMO.

CPU Voltage - 1.34v Load / 1.36v Idle
FSB VTT - 1.19v
NB - 1.26v
DRAM - 2.0v
GTL's - 58/58/58

As you can see Coretemp is really messed up with this new one. It's stuck on 62C. Smart Guardian shows correct load temps IMO. Hell with coretemp untill they manage to get it working correctly on Wolfdales.





I bet it'll do 5.35+ on SS this weekend

[Mav451]

Lol. SuperPI is incredibly sensitive to RAM timings - but real world performance isn't. I will never understand the obsession with SuperPI in that respect, b/c it basically says nothing on performance.

[jaredpace]

I never said it was faster. I just think it was more responsive or snappier if you know wut im trying to say.

I know my current rig is much faster then my last. But again, i never had to worry about voltages or anything else.

stop worrying

[Ymir]

Lol. SuperPI is incredibly sensitive to RAM timings - but real world performance isn't. I will never understand the obsession with SuperPI in that respect, b/c it basically says nothing on performance.

Bench, bench, BENCH.

Anyway, AriciU: To hell with Coretemp. Just use Everest and Smartguardian