Athlon64 X2 3800+ Steppings

[Big.Wayne]

Hi,

anyone know the difference between:

LCB9E 0632DPMW

&

LCBQE 0650SPMW

I am in the process of overclocking them both but I'm slow and wondered which is likely to overclock the most?

Thanks

[edit] Both from overclockers.co.uk

 

[Big.Wayne]

LCB9E is likely to max out at around 2.7 to 2.8 GHz with stock volts and possibly upto 3GHz with <=1.5v

LCB9E 0632DPMW - 1.375vCore - Rock Solid!

Ah that seems about right, this chip runs 2600MHz at 1.300vCore but then needs 1.375vCore to reach 2700MHz, thinking maybe it may reach 2800MHz but 3GHz seems a bit far off. .

LCBQE might do a bit better

Good, I thought they may be a dodgy stepping!

 

[Big.Wayne]

Blend is a lot easier on the processor than Small FFTs I find.

Perhaps you were running into memory or chipset issues?

 

[Big.Wayne]

Yup I know that

But if you got a test rig where the mobo can run over 300MHz-FSB and the memory can run 260MHz (tested and tested again!) and your concentrating on just overclocking the chip, wouldn't you run just the Small FFTs test? (its a tougher CPU test than Blend).

I also have been involved in the priority 1 vs 9 debate (going back nearly two years!) and I will not get involved in that again, suffice is to say the machines are left alone testing, no screensavers, nothing to snatch 'priority' away from Orthos etc, just kinda nice when u have to nip in there for 2 mins that you can actually use the machine for a quick screengrab etc.

I use Large FFTs test when Im just testing memory, I find thats good for finding errors in the memory and chipset that Memtest86+ doesn't.

Only really use 24 hour Blend as 'health check' on my PC's once or twice a year.

 

[Big.Wayne]

blend

I believe this test is a 'blend' of the Small FFTs and Large FFTs, so it gives your CPU a good hammering then changes to giving your memory a good hammering but I don't think it does both together?

I say this because when I used to run the Blend test I noticed that my CPU load temps would drop quite a bit during testing whereas the CPu temps are consistant during Small FFTs (albeit with a little fluctuation due to changing ambient conditions).

Anyhow I'm still testing lol, pleased to say both the LCBQE steppings have passed a 24 hour run of Small FFTs @2700MHz using 1.3000vCore (the LCB9E chip needed 1.3750vCore to run stably at the same speed!).

now working on 2800MHz but the chips are starting to get thirsty, up to 1.350vCore on one chip and 1.3750vCore on the second (both LCBQE), although to be fair I have observed on both platforms that the chips are both reading 1.3750vCore under load in Windows so theres a little variation in voltage on both machines. . .

Will post back some more results soon . .

 

[Big.Wayne]

Slowly getting there!

All the chips will do 2600MHz at 1.3000vCore

The LCB9E is up to 2700MHz @ 1.3750vCore

The LCBQE is up to 2700MHz @ 1.3000vCore

One LCDQE is up to 2800MHz @ 1.3625vCore (pictured above, using stock air cooling).

 

[Big.Wayne]

If you manually set the chip to 1.35vCore in the BIOS you should get 2600MHz-2700MHz without too much fuss. If you have a really nice chip you can try and add more vCore and get 2800MHz.

 

[Big.Wayne]

What's taking you so long?!

Not sure if your talking to me but if you are this is the *fifth* X2 3800+ I've overclocked since I started the thread!

All the chips do 2600MHz using 1.3500vCore, a few did 2700MHz and one did 2800MHz.

Didn't get time to push them further but I will really give this latest one a good tonking!

 

[Big.Wayne]

How do you reckon this one would do?
ADA3800DAA5BV
LDBFE 06.25BPDW
Z949439F6****

Not a biggy but these last four digits are unique to your CPU (ie serial code) so its probably better not to publish them.