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just got my ocuk 3800 X2 good stepping?

It's official, I have the worlds worst clocking X2 3800+ :mad:

2500Mhz needs 1.55V for Prime95 stability (tested 1 hour for now)
2650Mhz Core1 fails with 1.70V in 1 minute
2700Mhz Core1 fails with 1.75V in 1 minute

Now testing 2550Mhz @ 1.60V and so far 15 minutes Prime stable but actually very disappointing, I had hoped I would be at 2700Mhz with 1.60V :(



Can anyone confirm that if Prime hard locks instead of giving a rounding error stability is way off and lots more VCore is needed?
 
Dutch Guy said:
Can anyone confirm that if Prime hard locks instead of giving a rounding error stability is way off and lots more VCore is needed?
Click to expand...

Yeah a lockup is real bad :(

You could try popping the IHS, I had a chip with bad IHS contact, clocked so much better without the IHS.
 
Sorry to hear of your bad overclocking Dutch Guy :(
it seems that its luck of the draw ,like mine its a 4200x2 and im runnig it @2.6 @ 1.3v stable ,just a fluke .Anyway hope u get a stable clock @ a speed Your happy with :)
 
more tests only confirm my chip only works with high voltage, 2500Mhz needs 1.59V

I guess I am givng up getting it any higher, popping off the IHS isn't really worth all the hassle as the CPU temp indicated is 44C when priming which is only 2C higher than my SD 3700+ which ran at 1.525V so I doubt it is a heat problem.
 
Doppleganger said:
Ok I've gotten mine to 2.6Ghz at 1.53V and OCCT and 3DMark 2006 stable. I will prime test it overnight.

Seems like a few of these chips are not great clockers. :(
Click to expand...

Hi Doppleganger. :)

I'm in Edinburgh too. Wester Hailes. Maybe because were Scottish were getting thrown duds :(.

I got my X2 on Wednesday morning but I have to burn 500GB of my system as I'm changing a lot of parts in my system so I need a clean install. You must have put your chip in fairly quickly as I seen the first report of my stepping coming in and I was deflated to say the least.

I have a 3700+ SD and I can run it stable @ 1.6v @ 46'C max temps but run it 24/7 @ 2.64Ghz @ 1.55vcore. I bought it last July and it was just a month or two behind the wave of great overclocking 3700+'s. I was gutted then and I wasn't letting it happen to me again with X2. I stupidly opened the box to see if I got the shady AMD cooler or the opty one so I couldn't return the X2 3800+.

It's on ebay now and one's on the way from USA for £91 shipped. LDBHE 0601 XPMW. I got it off a member of an overclocking site I use. Extreme Overclockers. Here is his results with the chip I'm getting now ;) :
Used only on water for a few months. Has never seen 40c. Will boot and run 24/7 at 2850mhz @1.48v and has been to 3005mhz 3d stable @ 1.55v.IHS on This is a "T" stepping
Click to expand...

I then sent him this:

Hi there *********.

I'm very interested in your X2 3800.

I'm just wondering what kind of overclock would you think you'd get with an Artic Cooling Freezer 64 pro?

I just got one today in the UK and the first report I've heard for my exact stepping is 255x10 @ 1.60v. I'm sure I have the right to return it within 7 days so I'm looking for a decent overclocking X2 3800.
Click to expand...

It was on water most of the time, but I did use it on air(zalman 7700alcu) on a pos Gigacrap board. I think it was at 2800mhz at 1.55 if I remember right. It was only for a week until my sli-dr came back from rma...mine is one of the best steppings out there currently.

***
Click to expand...

It was your posting that has made me decide to sell the chip and I got a flimmin' great X2 3800+ in the process. Thankyou. 2.6Ghz @ 1.52v is ok though. FX60 speeds ;).
 
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Been reading this thread with interest and as i have recently got myself a 3800 X2 myself and i thought i would throw my findings into the mix with a twist. The steppings on mine are as per pic (its 0603 at the end)

DSCF1621.jpg


The problem i have is im limited to 240fsb and have no voltage control in the bios on my SFF setups mobo :rolleyes: which is an Asus A8N-VM CSM. I maxed the fsb out straight away no probs though the board does seem to overvolt slightly as cpuz reports 1.43 volts on the core so i guess this helps (stock is 1.35v correct?)

Anyway anyone else got this stepping / know anything about it? If so any ideas as to how would it perform in a mobo with better bios options?


Edit hmm seem i was posting at the same time as previous post was being posted, looks like it might be a reasonable stepping after all....hmmmm
 
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rxmac said:
The problem i have is im limited to 240fsb and have no voltage control in the bios on my SFF setups mobo :rolleyes: which is an Asus A8N-VM CSM. I maxed the fsb out straight away no probs though the board does seem to overvolt slightly as cpuz reports 1.43 volts on the core so i guess this helps (stock is 1.35v correct?)
Click to expand...

Volts can be either 1.3v or 1.35 as default. Mine is 1.3 default and currently stable at 240x10 as well at default.
 
J.D said:
It was your posting that has made me decide to sell the chip and I got a flimmin' great X2 3800+ in the process. Thankyou. 2.6Ghz @ 1.52v is ok though. FX60 speeds ;).
Click to expand...

Glad I helped in getting you a nice cpu. :) I'm fairly happy with 2.6Ghz but with the smaller 512kb cache it's not quite an FX60. Close enough though and I haven't totally given up. I think I can eek another 50Mhz outa this bugger. :)

Keep us posted on how the cpu clocks.
 
Doppleganger said:
Glad I helped in getting you a nice cpu. :) I'm fairly happy with 2.6Ghz but with the smaller 512kb cache it's not quite an FX60. Close enough though and I haven't totally given up. I think I can eek another 50Mhz outa this bugger. :)

Keep us posted on how the cpu clocks.
Click to expand...

:D

Yeah I'd be happy too. It's when I first seen 2550Mhz @ 1.61v I started to cry. My 3700+ San Diego I have just now was a month or so short of the immaculate wave of great overclocking 3700+'s and I didn't want to go through the same again.

The cache wouldn't help you too much from what I've been reading and from a few benchmarks I have seen with 512kb vs 1mb cache. So if what I've been reading is correct then your bang on the dot with FX60.

Yeah hopefully after this dry/dull heat has gone you will get more out of it than expected. I hope you can maybe push it to 2700mhz when the cold air creeps back in.

I should get the chip next week. I'll have my system ready to just pop it in. I'm changing to pci-xpress. I've got a 7600gt oc on the way. A MSI Neo 4 Platinum board I've had for a while and a set of G.Skill 2x512mb dual channel to replace my Corsair XMS. This motherboard, ram and Cpu are going to my mother in her new Thermaltake Soprano case. She loves it ;).

I'll deffo keep you posted on my results :). Good luck with your chip.
 
J.D said:
Hi there rxmac.

Check these two links out regarding steppings for the X2 Cpu's. I hope that there's some info for you ;).

http://www.xtremesystems.org/forums/showthread.php?t=73800

http://www.xtremesystems.org/forums/showthread.php?t=92953

Hopefully you've got a cracker there m8y :D Sorted ;) Looks good so far.
Click to expand...

Hmm just had a quick browse and it makes interesting reading cheers for that J.D appreciated, question is do i whip the oppy out of my main rig and stick the 3800 in instead to see what i can actually achieve with a "proper" bios. :D

Decisions decisions. :confused:
 
Well you guys doing better than me; my 3800 X2 won't post :(

Asrock dual sata; OCZ PC4200 EL RAM; BIOS OCW 1.7 no go :mad:

Just took out a working 3000 Winchester @ 270 x 10; set back to defaults in BIOS; installed X2; everything spun up but no post; reset CMOS; still no go.

Put back the winnie; reset all BIOS settings and it it's working fine.

Guess I got a DUD.

:( :mad:
 
Nae problem rxmac ;).

The answer is "Yes". Get the opty out and get that 3800+ in there. While overclocking it can be a pain in the ass but when it's all over you feel empty for a few days. Get yer hands dirty with better bios options. It's the only way it seems ;).

Topitoff said:
Well you guys doing better than me; my 3800 X2 won't post :(

Asrock dual sata; OCZ PC4200 EL RAM; BIOS OCW 1.7 no go :mad:

Just took out a working 3000 Winchester @ 270 x 10; set back to defaults in BIOS; installed X2; everything spun up but no post; reset CMOS; still no go.

Put back the winnie; reset all BIOS settings and it it's working fine.

Guess I got a DUD.
Click to expand...

Hmmm maybe try resetting bios then updating to most recent bios and try it again. If that doesn't help and it is a dud then I can only offer my sympathy.
 
Hmm well mine seems to be doing fine. 2.6ghz on stock volts. (no idea of stepping as I bought it a while ago).

Seems perfectly stable after many hours of solid farcry gaming.
 
Well... so far, mine is sitting at 2.5Ghz (250x10) running at default voltage of 1.35v. Load temp is 50degC, which is only 2 degs more than at default speed! RAM is holding me back, as even with the divider on 166mhz, I think its pushing on 210mhz which is about the limit on value ram. Any recommendations on cheap but high clocking RAM?

Hopefully Ive got a good un here!

LDBFE 0623XPMW
 
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Topitoff said:
Well you guys doing better than me; my 3800 X2 won't post :(

Asrock dual sata; OCZ PC4200 EL RAM; BIOS OCW 1.7 no go :mad:

Just took out a working 3000 Winchester @ 270 x 10; set back to defaults in BIOS; installed X2; everything spun up but no post; reset CMOS; still no go.

Put back the winnie; reset all BIOS settings and it it's working fine.

Guess I got a DUD.

:( :mad:
Click to expand...

RMA it and pay the extra for a X2 4400+ with the extra cache, now that they've come down in price. :)
 
hey all well, got my 4200+ x2 now at 2600mhz prime stable - needs 1.50 volts though to do it, 47c load under an xp-120, gonna leave it prime a while then try and lower the volts a smidge see if its still stable
 
Mine seems to be ok 250*10 at stock volts, trying more stuff atm though, going to aim for 2.6-7 hopefully :)
48h prime stable at stock speeds with 1.13v, can do upto 2110 at that voltage too, but didn't test it with prime95 for that long :)
 
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