The Official X2 Overclocking Thread (Please Post Your OC's)

[Brutus013]

My RAM is good for as high as I can OC, DDR400 at 333mhz. If I lower the HT to 3x won't I then have to OC higher so that my performance doesn't drop? Or is the performance from HT 3. the same? I am at 1.50v, not 1.55v. I will try HT 3x at 1.475v and see if the performance is the same.

[Brutus013]

I can't get it to boot at 1.45v no matter the settings. I don't know why. I have it at 1.475v and it is good. I can't even get it to boot at 2.8ghz though. I tried 1.50v with HT at 3x and it didn't boot. 2.7ghz is my limit.

[freakBYnature]

I can't get it to boot at 1.45v no matter the settings. I don't know why. I have it at 1.475v and it is good. I can't even get it to boot at 2.8ghz though. I tried 1.50v with HT at 3x and it didn't boot. 2.7ghz is my limit.

It just may be the stepping on your cpu won't allow you any higher, or your motherboard won't overclock as good. Try setting your ram to 2T and see if you get any changes, I've noticed something about my power supply, when I have more than two harddrives plugged in I am more limited with my OC, but if I only have one or two harddrives, everythings fine. Not enough amp's I guess. Only a peak of 31 amps on two 12volt rails. 29 amp stable, 31 peak. So I guess I'm living on the peak!

[freakBYnature]

My RAM is good for as high as I can OC, DDR400 at 333mhz. If I lower the HT to 3x won't I then have to OC higher so that my performance doesn't drop? Or is the performance from HT 3. the same? I am at 1.50v, not 1.55v. I will try HT 3x at 1.475v and see if the performance is the same.

As long as you don't drop down to 5-600 mhz on your HT (hypertransport) you won't "feel" any difference. Your cpu only handles 1000mhz anyway, so 8-900 mhz is fine here. HTT * HT MULTI = HT FREQUENCY. So - HTT 280 MHZ * HT MULTI 3X = HT FREQUENCY 840 MHZ

CORRECTION: CPU handles hypertransport of 1000mhz EACH DIRECTION AT THE SAME TIME, so when I set it to 840 mhz it will go 840 * 2 = 1680 MHZ, but it will say 840 anyhow in cpu-z or any other program you use

[Peter Burg]

My 3800+ (0618BPMW) runs at 2800Mhz (10x280) with 1.392V. RAM-frequency: 255Mhz.



Half an hour is missing on one core because i was using the webcam with my gf

[starostise]

lcbie 0627tpmw
it's now dead and i'm waiting for a new lcbie chip. i hop it'll do better results

all under freezer 64 pro






max htt




max screen

[Peter Burg]

You are hoping for better results? sry but don't be greedy ...

[starostise]

i know

[Peter Burg]

3.2Ghz insane for 1.35V. if overclocking is you hobby (like mine), i understand you, but if i had a cpu that is under de 1% of the best 3800+, i would be very satisfied.

if you go for performance, go for c2d

[starostise]

1.35v is a bug from cpu-z
real vcore was ~1.65v and it was just to test max htt

[ben rogers]

Ive got an lcbie 0619RPMW x2 3800+

it can only do 2.8GHz max on stock vcore....and more vcore doesn't even help it overclock more - maybe its my mobos htt limit though, an old nforce3.

i run it 24/7 folding @ 2700 due to high temperatures, need to buy a better heatsink/fan.

[Peter Burg]

What about removing the IHS?

[ben rogers]

I'll look into removing the IHS, is it safe to do this though?

I've got a feeling the wall at 2.8GHz is my old mobo not liking over 280htt.

[ben rogers]

got it upto 3 gig stable on 1.55v but I have to lower my memory divider to 100MHz (133MHz Divider doesnt POST) so Im best off leaving it how it is as its actually slower at 3 gig with that divider than it is at 2800 with the 166 divider.

http://valid.x86-secret.com/show_oc?id=140583

[Smy]

http://valid.x86-secret.com/show_oc?id=117133

old but still working max 3.21ghz stabil not bad with hs on and bad tunet SS

[Paxi]

That´s what i got so far, 2,6ghz@1,48V, also Primestable (primed for ~8h). Highest Boot into windows without overvolting was 2,9ghz@1,65V. But i´m still testing

[showmanlkz]

4200+ X2 CCBWE 0532MPM cooled W/Thermalright XP-120

252Mhz * 10 = 2517Mhz ( not worse than a 2800Mhz X2 3800+ actually )

System
ASUS A8R32-MVP Deluex 0602 BIOS
ATI X850XT PE 250MB
2x 1GB CORSAIR CMX102403500LL (252Mhz 3-3-2-7-1T)
WD Raptor 150GB 16MB
550 Antec TruePower PSU

OS-Win XP Pro SP2

VID= 1.400v (BIOS(
VID SPECIAL= ?
CHIPSET= Disable
LDT= ?
LDT= ??

CPC = Enabled
CAS Latency(CL) = 3.0
RAS to CAS(Trcd) = 3
Min RAS# Active time(Tras) = 7
Row Precharge Time(Trp) = 2
Row Cycle Time(Trc) = 11
Row Refresh Cycle Time(Trfc) = 13
Row to Row Delay(Trrd) = 2
Write Recovery Time(Twr) = 3
Write to Read Delay(Twtr) = 2
Read to Write Delay(Trwt) = 3
Refresh Period (Tref) = 0128 =200 3.9us
Write CAS Latency(Twcl) = 1
DRAM Bank Interleave = Enabled
Skew = Off
Skew Value = 0
DRAM Drive Strength = Auto
DRAM Data Drive Strength = Auto
DDRAM Response Time= Normal
Max Async Latency = 7ns
Read Preamble Time = 5.5ns
Idle Cycle Limit = 16 clks
Dynamic Counter = Enable
R/W Queue Bypass = 8x
Bypass Max = 4x
32 byte Granularity = Disable(4burst)

http://valid.x86-secret.com/show_oc?id=144228

All prime stables for 5 hrs b4 I stopped it
Pass Super PI 32M test

Couldnt do better than that.. the m/b offer the CPU voltage up to 1.400 -_-

[Rufus7]

This is my little X2 3800



And thats what the Baby does make on Standardvcore of 1,35Vc in the Bios

[mAJORD]

Bit confused about where the in place to post OC's is atm since their are quite a few in the discussion thread!

Anyway, thought I'd post my results since I prolly won't be running these clocks day to day.

AM2 5200+



http://valid.x86-secret.com/show_oc.php?id=156186

I did some breif stability testing at 11 multiplier (form earlier testing)



Now I'm pretty happy with these clocks, but for pure experimental purposes I am NOT happy with the bug this CROSSHAIR mobo seems to possess.

Essentially 1.55v is the highest Vcore I can get out of it, Regardless of what I set it to in bios (can set upt o 1.85 iirc).

Very frustrating as I can do suicide runs at 3.25ghz if I get the water cold enough, and keep load temps under 50. but I'm confident I could actually get it to run much faster at 1.6 (not willing to go higher than that anyway, even on water) coupled with chilled water.

Not an issue day to day though, as Due to my sys being a comprimise between silence (passive watercooling) and performance, my day to day clocks are 3.06Ghz @ 1.45 set Vcore. Runs this extremely stable (havent 24hr orthos yet, but been running non stop for days and days, + playing games, etc).

[Mi©hel]

http://valid.x86-secret.com/show_oc?id=156078
(suicide shot of course )

x2 3800+ Manchester (LDBHE 0604 WPAW)
DFI LP UT NF4 SLI DR Expert
1.7 vCore
Zalman 9500AM2
2x 512 MB Twinmos

it has one bad core that does 2.6 GHz prime stable (1.65 vCore) and the ohter goes up to 2.8 (too bad both cores have to have the same clock)

[binormalkilla]

I have an 3800+ X2 Socket 939, stepping available if you want it!
VCore=1.450V
HT=295 MHz
Multi=9X
CPU clock=2655
CoreTemp readings:
idle:
Core0=30C
Core1=35C
Load: (Orthos after 1minute)
Core0:45C
Core1: 60C

Probably could go higher but I need to get my RAM stable and to spec....having some issues and will probably have to RMA :\

[chrisf.uk]

x2 3800 lcbie 0628dpmw
picked this gem up from ebay a week ago :P

1.37 volts for 3 gig on basic watercooling

[newbiehn]

I have an 3600+ X2 Socket AM2 Windsor ( I didn't see any one OC that CPU)
http://valid.x86-secret.com/show_oc?id=157057
VCore=1.2750V
HT=240 MHz
Multi=10X
Vdimm=df
http://valid.x86-secret.com/show_oc?id=160373
VCore=1.2250V
HT=230 MHz
Multi=10X
Vdimm=df
I'm trying Super PI and pass 32M but when try Orthos option Blem test not pass 15m but test CPU only pass >5h. Are the memories false or Vcore is too low?

[mAJORD]

Hey Newb. Nice OC for that chip

I think you'll find your CPU-Z is reporting V-core wrong though. Mine does the same. Maybe it's Windsor compat thing. Try a mobo supplied app like PC probe for asus (example), OR dl Speedfan http://www.almico.com/speedfan.php , and check the VCORE 1 voltage (NOT vcore 2) , it reports correctly for me.

Cheers

[Peter Burg]

New CPU: CCBBE 0615DPMW