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Problem with Opteron 165 in OC

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April 19, 2007 4:00:14 PM

Hello everybody,
I have an Opteron 165 and I have heard about opty's potential of OC, but unfortunately I still could not go anything above 1926 Mhz(9x214) with a little raise of voltage (about 0.1) offcourse I had my ram work at 333Mhz and HT at 4x :( 
My MB is Asus A8NE. My RAM is Apacer DDR400(2x1mb) VGA Leadtek 7950 256Mb
with this MB and an AMD Athlon64 3200+ (my previous CPU) and a pair of 512Mb DDR400 Kingstone I have reached 2600 Mhz ,but now I can not go any further
What do you think is my problem :?:

More about : problem opteron 165

April 19, 2007 4:45:43 PM

Quote:
Hello everybody,
I have an Opteron 165 and I have heard about opty's potential of OC, but unfortunately I still could not go anything above 1926 Mhz(9x214) with a little raise of voltage (about 0.1) offcourse I had my ram work at 333Mhz and HT at 4x :( 
My MB is Asus A8NE. My RAM is Apacer DDR400(2x1mb) VGA Leadtek 7950 256Mb
with this MB and an AMD Athlon64 3200+ (my previous CPU) and a pair of 512Mb DDR400 Kingstone I have reached 2600 Mhz ,but now I can not go any further
What do you think is my problem :?:


Well, there are only 4 things that can be the limit really:
1) CPU
2) RAM
3) HT Bus
4) FSB

If you're sure it's not (2) or (3), then it must either be your CPU or your board - is the BIOS up to date?
April 19, 2007 5:09:09 PM

Try using a ratio in your ram,try some diffrent ram(borrow from a buddy),just a couple of suggestions...no HT over 1000 gl :D 
Related resources
April 19, 2007 5:39:38 PM

yes I have the latest BIOS installed.
Do you know the exact voltage tolerance of my CPU?
Maybe upper voltage will help :?
April 19, 2007 5:42:08 PM

When you say you raised the voltage by .01, what exactly do you mean, ram, or cpu?

And it is possible you either got a defective cpu, or you could have damaged it by static electricity. Were you grounded while handling your cpu?
April 19, 2007 5:45:58 PM

i know it can get past 1.5v easily.
April 19, 2007 6:01:43 PM

I have raised the CPU voltage.
but do you know how far the RAM can go?
April 19, 2007 6:11:53 PM

No, but just use the memory ratios to keep it under or at ddr400. Then you absolutely know your ram is not holding you back. And either way, on an AMD system, unless you have some uber overclocking ram, your gonna get the best performance by using it at ddr400 at lowest possible timings.

Hope this helps!
April 19, 2007 6:28:47 PM

got my sig, holla!
April 19, 2007 6:29:21 PM

What stepping is your CPU?
April 19, 2007 7:02:43 PM

this is what cpu-z shows
Stepping 2 Revision JH9-E6
April 19, 2007 7:05:27 PM

Unfortunately, you actually have to look at the CPU itself to find the stepping we're referring to. Its gonna say something like ccbbe0615, or something similar.
April 19, 2007 7:07:25 PM

No it is on th top of the CPU itself, on the IHS. Regardless, ad some Vcore, set the RAm on a divider and set HT to 4X.My old Opte 165 (stepping CCBBE) ran at 3004MHz 1.49v Vcore for refernce pruposes. Without watercooling you'll probably be limited to 2.8GHz due to heat.
April 19, 2007 7:10:59 PM

Quote:
yes I have the latest BIOS installed.
Do you know the exact voltage tolerance of my CPU?
Maybe upper voltage will help :?


.2V above the standard voltage is safe, anything higher is regarded as risky.

It's an amazingly poor overclock for a 165 - are you sure the CPU is not overheating?
April 19, 2007 7:30:11 PM

I have the EXACT same specs (different brand ram) and cannot get above what the original poster listed. I have:

-Updated BIOS
-No Overheating (50c on full load 40 idle)
-I reduced the MHZ on the RAM too

I cannot get above 1945 MHZ, the comp will just loop and the monitor gives me the no signal stuff...

I had my athlon 64 3200 at 2500 MHZ before this...and it was stable with good temps.
April 19, 2007 7:45:12 PM

- Set FSB to 245 (2205MHz on CPU)
- Set CPU voltage (Vcore) to 1.41v
- Set memclock to DDR333 (5:4 divider), leave RAM and Vdimm alone.
- Set HT to 4x

See if it will boot. Watch the temps as 50c is slightly high for a below 2000MHz overclock. As I said, a good stepping 165 can do 3000Mhz on 1.5v, give or take .02v either way, on water or peltier cooling. Expect 2800MHz-2900Mhz max on air.

Also, the A8N-E and A8N SLI boards have RAM problems above 240 FSB so you may have to got to 2T timing. Iwould recommend you get a nice used A8N32 SLI board with 8 phase power. They are cheap now and great overclockers.
April 19, 2007 7:48:48 PM

50c even on full load?
April 19, 2007 7:55:21 PM

Yes I'd say that 50c at 1926MHz is slightly high considering what the tope end of a good 165 is. Add some volts and raise the frequency and you will be at 60c very quickly. 60c is the warning temp for me on the A64 chips. Just watch it is all. It may hang at 50c for awhile and won't be a problem or it could be at 60c before you hit 2400MHz.
April 19, 2007 8:01:03 PM

lock pci bus to 33mhz
April 19, 2007 8:02:14 PM

Could my 420W power supply not be giving enough juice?
April 19, 2007 8:03:23 PM

Quote:
No it is on th top of the CPU itself, on the IHS.


Well duh did you really think I meant the die?
April 19, 2007 8:03:58 PM

Yes it could depending on its quality and the amps on the 12v rail.
April 19, 2007 8:06:25 PM

Quote:
- Iwould recommend you get a nice used A8N32 SLI board with 8 phase power. They are cheap now and great overclockers.


Or you could be a real overclocker and get a DFI Lanparty DR.

And btw, on that board, and with the right stepping, you will break 3.0ghz on air. Peace.
April 19, 2007 8:06:47 PM

Quote:
No it is on th top of the CPU itself, on the IHS.


Well duh did you really think I meant the die?

Hey funkee, I was typing at the same time as you and didn't even see your post. Chill out mate. :roll:
April 19, 2007 8:07:07 PM

It is one that came with the case, but it served me well for over 4 years. It also lacks the 24 pin connecter in which I had to buy an adapter for it.

I was toying with getting a new PS but I hate to toss one that is working..

Anyway, the OP and I seem to have the same issue, we both were able to OC our A64's with no prob but now are having problems.
April 19, 2007 8:11:26 PM

Yeah I would definitely recommend you upgrade your PSU.
April 19, 2007 8:12:07 PM

It may be an issue and getting to 3.0 on air, regardless of what funkee says, is very, very difficult without risking damage to the CPU. You can gety there sometiimes but you can't run Orthos for more than a few minutes. I have seen very few solid (Orthos stabe for at least 4 hours) 3.0 overclocks on a 165 on air.
April 19, 2007 8:13:53 PM

Quote:
No it is on th top of the CPU itself, on the IHS.


Well duh did you really think I meant the die?

Hey funkee, I was typing at the same time as you and didn't even see your post. Chill out mate. :roll:

Please do not tell me to chill out ever again. Thank you for your cooperation.
April 19, 2007 8:16:25 PM

What is a good PS for around 50-70$
April 19, 2007 8:17:17 PM

This ahole 15 year old funkee has hijacked your thread mates so PM me if you have any other questions. Glad to help.
April 19, 2007 8:18:39 PM

Here we go again, another overreacting british guy, whos input is the only correct input.
April 19, 2007 8:26:50 PM

Actually my friend has a similar problem. He has an opty 165, 2 gigs of OCZ preformance ram and a DFI Lanparty board and he can't get his proc over I think 2015 or so. Don't know why, it only gets to 36 degrees on load.
April 19, 2007 8:57:51 PM

Thank you everybody there for your helps.
I think I should read these links that you sent more carefully and
do some detailed work on them
ofcourse I had never raised the vcore as high as you guys said so maybe it's time to do that 8)
again thank you and bye :D 
April 19, 2007 9:01:03 PM

Yep. Somethings wrong. From what I hear, that mobo is pretty poor for overclocking, but I still suspect something else. I do suspect the Power supply. I have a high quality 480 watt, and my Opty 165 runs great with stock cooling. At stock speed, the cpu had about 44 C load temps. At 2.7ghz it runs full load (Orthos) at about 57 C, which is a little high for my tastes, but not bad.

You should be able to run at least 2.6, thats a pretty sure bet. Make sure that your PCI bus is locked at 33 mhz. My 165 will run at 3.0 ghz on 1.4 vcore...but I don't like the temps....maybe someday after I get a decent cooler.

EDIT: I also have the newest stepping, which apparently is not as good at overclocking. Mine is a LCBE9 or something like that. (NOT CCBBE (Best)or CCBWE (worst))

Best of Luck
April 19, 2007 9:12:29 PM

Quote:
I had never raised the vcore as high as you guys said so maybe it's time to do that 8)
Opty 165 is specified for 1.35V so I don't think 1.4V is something HIGH. It's Toledo core (OK, Denmark if you prefer) for which 1.5V is considered SAFE. BTW, the same specs says 110W & 80A, so if you do a simple math 110/80=1.375V NOT 1.35V :lol: 
April 21, 2007 3:16:40 PM

OK Friends I have finally done 8)
HT 2x
DDR200 timinng: 2-3-3-7 at 1T memory voltage is 2.7
CPU Vcore: 1.35 8x340=2720MHz
I run it with it's stock cooling and it is around 39' cel at idle and 51 to 53
under full load(2 to 3 hour playing Company Of Heroes with high detail)
Anything higher cause the system to do not boot and if it does the temp is too high for me to accept.
Again thank you for all your advices :) 
April 21, 2007 3:26:45 PM

Congrats. I'm glad to see that you got a good overclock out of that chip.

One issue though: I would try to raise the HT to 2.5x or 3x. I'm not sure at what point that can become a bottleneck, but I was always told to try to keep the HT frequency between 1000 and 700. Yours comes out to (340*2) = 680, which to me, seems slightly low.

Good Job!
April 21, 2007 3:36:08 PM

Unfortunately my MB does not support 2.5x HT and at 3x it is somehow unstable.
Any suggestion :?:
April 21, 2007 3:50:32 PM

Will the system run at 9*300 = 2700 instead? At 3x HT that would give you HT frequency of 900, which should be very stable. You could run the ram at DDR266 speed, which would result in 400mhz effective ram speed. Perfect for your DDR400 ram. (Or you could push the ram to DDR33 speed, and run it at 491mhz :twisted: )

If that won't work, just leave it as it is. It doesn't sound all that bad to me!
April 21, 2007 4:41:56 PM

Edit: Oops... didn't read the rest of the thread.

-mcg
April 21, 2007 4:55:31 PM

I use the stock cooler that has come with the CPU and the stock paste that where under it's sink.My case is nothing especial as it is a very cheap one and I let it be open forever because I love to see my hardware. So because it is open everytime the ventilation is not so good, I know, and I just use 2 normal 8 centimeter fan which are blowing air into my case.
(I know it is not kind of professionalism but just serve me well :roll: )
April 22, 2007 1:10:41 PM

Quote:
OK Friends I have finally done 8)
HT 2x
DDR200 timinng: 2-3-3-7 at 1T memory voltage is 2.7
CPU Vcore: 1.35 8x340=2720MHz
I run it with it's stock cooling and it is around 39' cel at idle and 51 to 53
under full load(2 to 3 hour playing Company Of Heroes with high detail)
Anything higher cause the system to do not boot and if it does the temp is too high for me to accept.
Again thank you for all your advices :) 


Good to hear you got a decent overclock out of that thing at last! You've restored my faith in the good old 165 :) 
April 25, 2007 7:29:23 PM

Hi !

I've got the same problem as animel.

I cant get my opteron 165 over 220x9 = 1980, and more windows xp sp2 reads it as 1.81ghz.

Cpu-z ver 1.39 reads it as 1.81 too.

I tried 8x340 and ht x2, didnt work.

Animel does your windows read the correct cpu speed ?

My last cpu a64 3000+ venice core was good for 270x9 atleast.
Mem had it at 221mhz.

Must be bios related right ?

Sorry forgot my specs

A8N-E bios 1013
Opteron 165
PSU Hiper 580W
Chassi Antec P180
7800gtx
2048 mb ram kingston value ram , good for at least 221mhz.

Full load temp with prime 95 60C @1980 or 1810 depens on what to trust win xp or bios.

Anyone got any ideas ?
April 25, 2007 7:46:17 PM

Ok. Since you have a decent PSU, that seems to be out of the question. (For now....)

From what I read of your problem, the BIOS is actually NOT overclocking your cpu, for whatever reason. If CPUZ is reading your CPU at 1.81ghz, your PC is actually running at stock speed.

Let me first ask some simple questions that are fairly obvious, but necessary to ask.

1. What does the motherboard report as the clock speed on the cpu? Is it higher, or is it 1.81ghz?

2. Does the motherboard give any warnings when the computer starts up? By this I mean, any low cmos battery warnings, etc.

3. Are you running the newest BIOS?

4. Your CMOS jumper isn't in the reset position, is it? (Had this happen once...it did bad things.)

5. What are the timings on your ram? What are they set as?

These questions should help to diagnose your problem.

Also, for reference, what is the stepping on your CPU? It says on the CPU heat spreader. If you didn't write it down, thats ok. Nevermind then.


Best of Luck
April 26, 2007 5:08:24 AM

1. Do you mean in bios ? in that case it reports 1980, it also says that in the bootupscreen.

2.No no warnings, though it said when i flashed the bios that I should clear cmos. I never did that. I did load default value in bios.

3.Yes the newest.

4. No

5.Default , I'll check when i get home. Divider tried at 333 and 266 when overclocking. CPU-Z reads the memory as 201, even when its really at 220mhz.

Dont know which stepping I've got.

/Thanks
April 26, 2007 12:58:15 PM

First thing I'm going to ask you to do is reset the CMOS. Since the data in the CMOS is related to the BIOS version, this could be your problem.

Second thing: Make sure that your PCI bus is locked at 33mhz, and that the PCIe is locked a 100mhz.

Set the Ram speed to 333mhz speed, and set the timings to 3-4-4-8, which will prevent issues.

Tell me if anything results from this.
!