just got my ocuk 3800 X2 good stepping?

Dutch Guy · 27 Jul 2006 at 12:21

Credo said:
Nice one - is the stepping a LDBFE 0623WPEW like mine? If you can, have a look at what the vcore is on both cores. It's like my 2nd core is in power saving mode or something...

I can't check now as I am at work and the CPU is at home.

Credo · 27 Jul 2006 at 12:25

Dutch Guy said:
I can't check now as I am at work and the CPU is at home.

Ah, no problem. I'll have a further play around tonight anyway. I think I may have just run the dual core optimiser, and not the actual X2 driver, which may cause some issues...

What BIOS are you using for your DFI Mobo? I flashed to the latest official one from the DFI website, hopefully this is OK as I'm running TCCD RAM, which my old BIOS (414-3) was optimised for...

Cyber-Mav · 27 Jul 2006 at 12:45

coube be bad ihs contact.

Dutch Guy · 27 Jul 2006 at 12:51

I don't think there is a 2nd VCore.

Perhaps the Core2 voltage is in fact the northbridge/LDT voltage?

Credo · 27 Jul 2006 at 13:02

Dutch Guy said:
I don't think there is a 2nd VCore.

Perhaps the Core2 voltage is in fact the northbridge/LDT voltage?

Good point. I agree, I can't see the point in having 2 vcores. CPU-Z reports exactly the same for both cores, 1.312v, so maybe it's speedfan messing about. There are a couple of AMD monitoring programs I've found on AMD's website, I may try those. Either way I want to get this little bugger up to at least 2.4GHz...

Doppleganger · 27 Jul 2006 at 13:31

dC2006 said:
Hi, noticed one problem with going from single core to dual core, heat ! Even getting my x2 3800 stable at 2.7ghz I found out that what ever I ran, prime, superpi32, games etc.. after about 40mins - 1hr i would get a crash, which most likely means some component getting very hot and making system unstable. Or the cores just making each other unstable due to heat. I guess this is when water cooling kicks in and air cooling phases out. At 2.6ghz there are no problems.

Compared to my opty, if I put my hand over the case blow holes, the warm air is much warmer than before.

I'm finding that I can boot into windows at 2650mhz easily enough but getting it stable is a different matter. I've backed off to 2550mhz for the time being which is rock solid stable. The hot weather isn't exactly helping either. I left prime95 running on both cores over night and came in here this morning and it was like walking into an oven.

Dutch Guy · 27 Jul 2006 at 13:42

Wow, do you need 1.61V to get it stable at 2.55Ghz :eek:

A.N.Other · 27 Jul 2006 at 14:44

Dutch Guy said:
Just a shame there is no stepping information in that otherwise excellent table.

I will post in this thread as well as soon as I get my X2-3800+

If people post their steppings in the thread, I'm more than happy to add another column to the table for that data. There won't be many, as most of the data is compiled from a fairly old thread, where they weren't being posted. However, if new people post theirs and if anyone that sees this can ask anybody already in the thread to post theirs, then it can become fairly comprehensive.

If you all post in here when you've got your final OCs, I'll add you as soon as I can.

Doppleganger · 27 Jul 2006 at 14:45

Dutch Guy said:
Wow, do you need 1.61V to get it stable at 2.55Ghz

Yeah.

I'm hoping I can reduce it after a week or so. Still messing about with settings. I ran a 3000+ at 1.65V for a year with no issues but still, I'd like it lower.

Cal_G · 27 Jul 2006 at 14:51

Any ideas as to why I get a total system lockup at 2.6 but not 2.5? temps are exactly the same on both settings, so I dont think the issue is heat.

Could it be that it needs a higher vcore? as in a previous post, I can supply 1.4 maximum :rolleyes:

, dont fancy the volt mod for an extra 100mhz

Dutch Guy · 27 Jul 2006 at 15:01

Cal_G said:
Any ideas as to why I get a total system lockup at 2.6 but not 2.5? temps are exactly the same on both settings, so I dont think the issue is heat.

Could it be that it needs a higher vcore? as in a previous post, I can supply 1.4 maximum , dont fancy the volt mod for an extra 100mhz

Could be you need more than 1.4V

What is the memory running at, maybe that is overclocked too far?

Doppleganger · 27 Jul 2006 at 15:15

Cal_G said:
Any ideas as to why I get a total system lockup at 2.6 but not 2.5? temps are exactly the same on both settings, so I dont think the issue is heat.

Could it be that it needs a higher vcore? as in a previous post, I can supply 1.4 maximum , dont fancy the volt mod for an extra 100mhz

More volts is what it might need. Max 1.4V isn't giving you a lot of options.

Cal_G · 27 Jul 2006 at 15:20

Dutch Guy said:
Could be you need more than 1.4V

What is the memory running at, maybe that is overclocked too far?

Memory is underclocked at 208, its 3500ll stuff from corsair. Happy with 2.5 but I know it can be pushed further

Cyber-Mav · 27 Jul 2006 at 16:54

what command rate is your memory running at 1t or 2t?

Cal_G · 27 Jul 2006 at 17:48

Have to use 2T on the dual-sata2 with this RAM, 1T wont pass test 7 on memtest no matter what the timings are, my old Geil value ran at 1T fine :rolleyes:

Dutch Guy · 27 Jul 2006 at 18:56

Credo said:
Nice one - is the stepping a LDBFE 0623WPEW like mine?

Yes, my 3800+ is that stepping.

I am going to shutdown and replace my San Diego with the X2 and start testing :cool:

[edit]So far very disappointing, already needs 1.5V @ 2400Mhz, any lower volts and it locks up Prime or fails to boot

Back to testing and maybe the chip will improve after some running

Now at 2500Mhz @ 1.55V Dual Prime95 Small FFT stable for 10 minutes[/edit]

aardvark · 27 Jul 2006 at 20:00

its not looking great for mine here

put the voltage to 1.45 in the bios (shows up as 1.424 in cpu-z - my MB always undervolts)

attempted to put it at 2500mhz (using clockgen) - instant crash

i'll try more at the weekend - more voltage perhaps?

Dutch Guy · 27 Jul 2006 at 20:04

aardvark said:
attempted to put it at 2500mhz (using clockgen) - instant crash

i'll try more at the weekend - more voltage perhaps?

Yes, mine needs 1.55V @ 2500Mhz to run Prime95 stable

aardvark · 27 Jul 2006 at 20:07

Dutch Guy said:
Yes, mine needs 1.55V @ 2500Mhz to run Prime95 stable

what cooling do you have?
i have a freezer pro.

cheers

Justintime · 27 Jul 2006 at 20:18

Perhaps you lot got some older cores? My X2 3800 did 2.6Ghz 1.425v before i sold it and my current Opteron 165 will do 2.5GHz on stock volts, had it up to 3Ghz at 1.55v but ran too hot for my XP120 to handle full time without loud case cooling.