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x2 3800 oc speed

Last response: in Overclocking
April 18, 2007 1:27:58 AM

I'm about to replace my 3200 with the x2 3800 (99$ cad!!) and was just wondering what kind of oc speeds I could expect with the new cpu ?

Thx !

More about : 3800 speed

April 18, 2007 2:01:45 AM

Aftermarket cooling= 2.5-2.8 Ghz
April 18, 2007 2:37:49 AM

I have the zalman cnps-7000 and right now I am at 2.5 oc stable on my 3200.
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April 18, 2007 2:47:09 AM

wouldve though you could get higher than 2.5 with a 3200+... but, i agree with oinkypig on the speeds... i can push my s939 X2 3800+ up to 2.73 (any higher and it wont post), just have it running at 2.4 currently (@ stock voltages, 1.35v), so the temperatures are kept relatively cool (normally idles at 41-42C, and full load ~55C+, TT blue orb 2), also depending on the ambient temperature, right now its idling at 46-47C (my room is warm, lol)
April 18, 2007 2:54:10 AM

I had it going at 2.65 with 1.55 volts but got high temps so took it donw to 1.5 and 2.5 with just a bit above stock temps.
April 18, 2007 2:58:51 AM

oh ok, that makes sense then. performancewise theres no complaints for an X2 with even a minor OC, thats for sure
April 18, 2007 2:59:47 AM

I have a Big typhoon, and i use my AMD 3800 x2 at 2.7Ghz all the time. I have gotten it to 2.8 Ghz to run benches though. i also have arctict silver5 thermal on it.
FSB= 270

i have 2x1gb G skill ddr400(2-3-2-5) on ddr333/ddr166 in bios.
right now ive kept the timings the same but the they are running at 448Mhz/224Mhz

use this A64 OC calc to calculate everything!
April 18, 2007 3:01:23 AM

Thx for the link very useful !!
April 20, 2007 1:18:16 PM

I ordered the x2 3800 this morning. I'll get it next week and post some info on oc speeds I got for those interested.
April 21, 2007 1:18:26 PM

My CPU is a socket 939 4400+ X2, but I have managed 2.5Ghz. I am only using stock air cooling, so its probably best for me not to push it too far :lol: . The 3800 + X2 model should overclock fairly well and its cheap too :D  .
April 21, 2007 2:28:28 PM

Aftermarket cooling= 2.5-2.8 Ghz

You might get a bit more out of stock cooling. I'm running mine at 2.25GHz on stock and I'm sure I could get more if my motherboard had a variable HT multiplier. Temps are perfectly normal. And I don't even have that heatpipe stock cooler.
April 21, 2007 3:21:46 PM

Aftermarket cooling= 2.5-2.8 Ghz

You might get a bit more out of stock cooling. I'm running mine at 2.25GHz on stock and I'm sure I could get more if my motherboard had a variable HT multiplier. Temps are perfectly normal. And I don't even have that heatpipe stock cooler.

Yeah, I have the 4 pipe cooler....running at 2.7 at about 55 C full load. Not too bad, AMD has really upgraded their cooling solutions. If you get the heatpipe cooler, you can probably hit 2.5 at least on stock cooling. :D 
(From what I hear though, the heatpipe cooler only comes with Opty's and 4000+'s and up. :? )
April 21, 2007 4:37:29 PM

(From what I hear though, the heatpipe cooler only comes with Opty's and 4000+'s and up. :? )

I've just started OC'ing my X2 3800 using the stock cooler (non-heatpipe). I can't push it much higher than I have it right now without lowering the RAM speeds to "333MHz" on the motherboard because of my ValueSelect memory. I was going to try for 2.4GHz (unrealistic I know) so that I could get back to basically stock memory speeds using the "333MHz" setting. Oh well... I'll see how far I can get it without having to cripple the memory and post back. (I'm at work right now so I'll have to do it tomorrow or something.) I have a pretty old X2, I got it at Fry's back when they were new although I forget the stepping.


P.S. as much as I'd like to invest in an aftermarket cooler I just REALLY can't invest any money in computer parts right now because of other expenses... car payment and the cost of living. :? It all just barely adds up right now as it is.
April 26, 2007 1:39:33 AM

Just got the cpu today but not with stock cooling I bought an oem. But doesn't matter I have a zalman cnps7000. So after running it stock for an hour or so I decided to go ahead and oc this little cpu. I got to 2.5 without any boost in voltage and mem running at 333mhz 250 bus speedand 4x ht multiplier. I'll leave it like that for a couple of days to test stability then will try and push it further. My temps are around 50 full load 35 idle. Not too bad !
April 26, 2007 2:33:26 AM

I played Oblivion and Stalker for a couple of hours with no crash. If I run SuperPI 32m and then Prime95 torture test and no crash will this be enough to consider my system stable ?
April 27, 2007 5:06:57 AM

I would just run 2 instances of prime95 at the same time. Run it for 12 hours, and this should be sufficient to say that your PC is fairly stable. Then up the speed and repeat!
April 27, 2007 5:14:37 AM

Not really.

There is a problem with super pi and prime 95. They just test your cpo and memory. You need to put some load on your graphic card cos the system isnt behaving the same then.
Try prime95 and 3dmark on continuous look for about 12 hours that should be enough.
Remember, small FFTs (8-32) for testing the CPU and big FFTs (4096) for testing your memory.
April 27, 2007 9:22:33 AM

It's not a problem with SuperPi or Prime, it's a problem with PRIORITY and # of threads. Use Orthos with Priority 9. And IF PCIe (or AGP) is LOCKED properly at default speed - shouldn't have nothing to do with OC. Some people say OCing PCIe to ~120 will help your overall OC. I personally don't believe it, since I didn't observe it in any rig I've built.
April 27, 2007 1:46:02 PM

A graphic card draws power. The more work it does the more power it draws. It affects your overclock and I am not talking about the pci lock.

Take your graphic card out and connect and old PCI one. You will probably gain 100-200MHz more on your CPU overclock.

This is probably cos of the interference the graphic card causes.

You can have a rig oced and tested for a week in prime95 or anything else but then you run a game and it freezes after 30min.
April 27, 2007 4:14:57 PM

Then the am2's biggest advantage is the heat. I can run my athlon 64 3200 AM2 at 2.5 ghz with the stock cooling. After 5 hours of C&C3, I saw 50 celcius.
The rams are at 500mhz. Everything else is set to auto.

I wonder if I can do this with am2 x2 with stock cooling.
April 27, 2007 5:04:22 PM

So it's no PCI lock testing - it's PSU testing.
May 6, 2007 5:20:49 AM

Got the cpu to 2.6 and even at that speed it still doesn't need a volt boost .... this is really good !
May 28, 2007 5:04:29 PM

Congrats! I personally would like to get my S939 X2 3800+ to 2.4 so that I can at least be running my memory at 400MHz again. It takes a pretty big hit running below full speed even with faster timings.

May 28, 2007 5:45:23 PM

i have a x2 3800 (toledo)
i can only get it to 2.4
my specs are:
asus a8n sli motherboard
kingston value ram 1.5 gb cl-3
bfg 6600 gt sli
450 watt power supply- no name lol :-(

CPU Multiplier: 10
LDT Multiplier: 4
cpu htt: 240
RAM Frequency Ratio Division: 166MHz (5/6)(ddr 333)
cpu voltage: 1.45 V
May 28, 2007 6:37:05 PM

Do you have stock or after market cooling ?
May 29, 2007 1:36:33 AM

after market cooling
water cooling
ide 34 load 48
May 29, 2007 1:40:25 AM

I have a zalman cnps-7000cu and idle 34,36 load around 48. I get some crashes in some games, not all of them and it's stable with superpi 32m.
May 29, 2007 2:16:24 AM

I can safely overclock my X2 3800 to 2.6ghz on Stock cooling. Easily.

I haven't really found much reason to push it further, though im fairly sure I could. The maximum I've seen it reach under load is about 55-56 Celsius. Idles around 36-40.

Before anyone cries "OMG NOT ON STOCK COOLING LOLOL YOU NEED SUPERWATER COOLINK, LIKE MEIN". My computer sits right next to the window, venting the cold air straight in and out.
August 7, 2007 4:56:40 PM

Hey my friend OCed his x2 3800 that i sold to him to 2.6Ghz stable. Also i have created an extensive excel sheet that can help you plan your OC, it is good for CPUs with 10x and 9x multi's and any extras that you want to add.