Phenom 9850BE low voltage overclocking results!

[eidairaman1]

Hey is the part number on that chip the same for all Phenom 9850s? It would save me time and effort form having to remove mine out.

http://fab51.com/cpu/guide/cpu_guide-64-e.htm#am2plus

http://fab51.com/cpu/guide/opn-am2plus-e.html

Go there for AM2+ Info.

 

[eidairaman1]

congrats. now put it on and tell us what it feels like!!!

Your CPU was Produced, Week 45 of 2007.

 

[kenkickr]

It is stable at that speed with that low low voltage??? It's a great clocking kenkickr, congratulations!

So far so good!! prime95, memtest, and MVP 05 stable. Tomorrow I'll make sure it's GRID stable! Thanks and I'm glad my 2nd try with the Phenom is paying off since my first one was a dud.

 

[servermonkey]

my stable starting point

http://valid.x86-secret.com/show_oc.php?id=386060

 

[OzzmanFloyd120]

Not sure if there's a 9550 out there OCed yet, but here's my screenie, it's 100% stable over 24 hours on the Everest Stability Test (Say what you will, but I think if it can last 24 hours it's good enough for me) I've had this chip up to 2.75Ghz, but I can't get it there again (I may have had some freak luck) But I can get it 2.72 on the 10x multi.(Didn't test for stability) I've pushed this chip up to 1.7V looking for 3ghz, but couldn't break the 2.72 again. Maybe it's just me.
Any feedback or thoughts would be appreciated.

 

[Kei]

I think I just need to either go back to that setup and try to push all the bit and peices as far as they can go. Like memory speed and timings. What would you say to do Kei, on the 293x9.5 setup?

Okay if you're gonna try that setup out I'd say...

1. use the 1.66:1 divider (667Mhz) for the ram which will give you 486Mhz (972Mhz total) try that at relaxed timings first say 6-5-5-15 then go down from there

2. HT Link I'd try with 1.4Ghz (7x multi) setting which will give 2.051Ghz try that for stabilty

3. Same mutli for the Northbridge until we find that's stable then move up to 8x (2.34Ghz but leave HT Link alone)

Voltage wise try the HT Link at stock voltage and the same for the Northbridge (1.20v is stock for 2.0Ghz) unless you find that you need more after testing the others.

First thing to test is the ram of course at that setting so use memtest to see if it'll work if not then drop the divider to 1.33:1 (533Mhz setting) and try again.

After you've done the ram I'd test the cpu with Everest so you can target the cpu itself to see if that's stable before stressing the whole system and then guessing which one is unstable.
----------------------------------------------------

And thanks for the compliments on the car I don't have any pics of it up on the net but when I put it all back 'in service' (aka when fuel doesn't cost $9/gal j/k) I'll do something for you guys. Just know it's a second generation car (the best all around car...focused but not so focused you can't drive it on the street...yet not relaxed enough that you can get groceries by any means haha) with no body modifications as remember it's very very stealthy.

K

 

[Kei]

am i correct in guessing my h/w is max fsb?

Yes, that is indeed your homework but make sure you follows the rules so everybody does it the same so we have a good reference for all.

Side Note:...damn I'm the only lonely man using Vista32 eh? Guess I'd better get with the program already haha

K

 

[Kei]

Not sure if there's a 9550 out there OCed yet, but here's my screenie, it's 100% stable over 24 hours on the Everest Stability Test (Say what you will, but I think if it can last 24 hours it's good enough for me) I've had this chip up to 2.75Ghz, but I can't get it there again (I may have had some freak luck) But I can get it 2.72 on the 10x multi.(Didn't test for stability) I've pushed this chip up to 1.7V looking for 3ghz, but couldn't break the 2.72 again. Maybe it's just me.
Any feedback or thoughts would be appreciated.

Welcome Ozz...what voltage are you using right now and is that the correct HT Link speed as well as the Northbridge? If so, did you drop it that far down for stability reasons? I imagine that we can indeed raise that up if we put our heads together as my 9500 could do significantly better but I may have more experience with Phenoms.

We just need to put our heads together and get this thing sorted out.

As for 9550's you are the sole one so far, but there is a new 9500 in here (cdwall) and I've also owned a 9500 and still have lots of my information so you're not nearly alone.

Try out the test I gave two pages back (max ht bus speed rules) and let me know what results you get. That'll give us a better idea of how to work with your specific chip/combo. I'm not so much as worried about the cpu speed as it's quite good even though we may be able to get better, but the HT Link and especially Northbridge I believe we can get more out of which will see very very nice gains in overall system performance w/o too much effort.

K

 

[OzzmanFloyd120]

Yo guys, I just found this link where they got the new 9950 past 3ghz on stock volts. It might be old news, but I just found it
http://www.legitreviews.com/article/735/12/

 

[Kei]

For those that missed the homework assignment on the board

Vis and Aphex have you guys tried again with the 8x multi yet? I posted another bit about them stating that I forgot the first time to change the 'rules' for this portion of the test.

8x cpu multi
1.30v cpu
5x northbridge multi
1.0Ghz ht link setting
400Mhz ram setting (1:1 divider)
2T enabled ram setting

That's it, this should give you a significantly higher result if you give it another go and it will give us another glimpse of how far you can take your chip/combo after looking at the final result.

Sorry I forgot to put that up the first time, but hopefully you guys aren't all pooped out from your other testings. And Full...I know it's the weekend but I don't remember giving you 'off' hahahaha

Thanks again,

K

Above are the rules for testing the Max HT Bus speed with 8x cpu multi.

For those with 9850BE you will also need to do the test with the stock 12.5x multi but...

Load setup defaults (in bios)
CPU Multi is 12.5x
CPU Voltage is 1.30v

No other settings may be changed for the test (literally) otherwise the results will be skewed and it won't help anyone.

For those with 9500/9550 you will also need to do the test at the stock 11.0x multi but...

Load setup defaults (in bios)
CPU Multi is 11.0x
CPU Voltage is 1.25v

Also no other settings may be changed for the test (literally) to ensure the results are not skewed.

The results for all of the tests will be put into a post with everyone's results so that we all have an easy reference for how each chip/combo roughly reacts to change. It will also give everyone a reference to go to when someone asks for help so we don't have to state our system limits each time.

Thanks,

K

 

[Kei]

Yo guys, I just found this link where they got the new 9950 past 3ghz on stock volts. It might be old news, but I just found it
http://www.legitreviews.com/article/735/12/

Haha, yea I posted that in a rant about 'Legit Reviews' though the overclock is nice indeed (btw...I don't really like that site). Thanks though Ozz

K

 

[OzzmanFloyd120]

Welcome Ozz...what voltage are you using right now and is that the correct HT Link speed as well as the Northbridge? If so, did you drop it that far down for stability reasons? I imagine that we can indeed raise that up if we put our heads together as my 9500 could do significantly better but I may have more experience with Phenoms.

We just need to put our heads together and get this thing sorted out.

As for 9550's you are the sole one so far, but there is a new 9500 in here (cdwall) and I've also owned a 9500 and still have lots of my information so you're not nearly alone.

Try out the test I gave two pages back (max ht bus speed rules) and let me know what results you get. That'll give us a better idea of how to work with your specific chip/combo. I'm not so much as worried about the cpu speed as it's quite good even though we may be able to get better, but the HT Link and especially Northbridge I believe we can get more out of which will see very very nice gains in overall system performance w/o too much effort.

K

Thanks Kei, the reason I run only at 260*10 is just because it's summer here and I have no AC (I don't like my room to get TOO hot) The only reason I give my CPU the .025v bump is for a little added insurance, It's completely stable 2.6 on stock though.
I'll jump back a couple pages and see what you're talking about (if it's what I'm thinking I can get my NB far past 310HT)

 

[Kei]

Ozz, I just posted the test on this page (up a couple posts) with specifics for each version of the Phenom.

I understand all about the hot room syndrome though I'm lucky as it's not piping hot in my room though much hotter than I normally keep it. My Phenom does run roughly 3-5C hotter during the summer season but that doesn't really matter much as I have one of the coolest running Phenoms around.

I was just curious about the HT Link mainly but the Northbridge can be upped too, but not if we're worried about your hot like fire room

K

 

[Kei]

A little something that MAY prove to help someone...

I was going through my old stuff and I remember back in may seeing a setup on a Toliman (X3) processor going to 3.3Ghz and doing the 'classic' dropping the HT Link speed to achieve it so I thought I might post it here again in case it spawns some ideas for some of you.

K

 

[AphexDreamer]

Hmm I go to amd support site to try and go thought he process of RMAing my CPU, but I don't see phenom listed as a product to chose from, im lost here?

http://support.amd.com/consumer/EN

Is there something I missed?

 

[Viscarious]

Oi, quick update. Kei, I couldnt get the memory or those settings to work but I didnt try very hard lol, I'll give it another go later or tmrw morning. Also, I tried the 250x12 setting and it made post but I didnt get into windows. I bet its just the HT link. I'll give that another go later.

Off to Warcraft III

 

[Kei]

Koo, thanks Vis have fun in Warcraft

Aphex, why are you trying to RMA your cpu?

K

 

[cdawall]

ok my current clocks this is just through the BIOS i haven't really messed with anything

no idea wtf is up with my new ram right now its stuck on those settings and it wont let me change them to 4-4-4-12 2.1v which is default

 

[Kei]

Sweet clocks, if you have memset (I recommend it so you can adjust max latency which is very important) then try to adjust them in there. You can adjust all ram timings from within there except those which can't be changed from within windows (like cas).

K

 

[cdawall]

Sweet clocks, if you have memset (I recommend it so you can adjust max latency which is very important) then try to adjust them in there. You can adjust all ram timings from within there except those which can't be changed from within windows (like cas).

K

i might just push the ram to really high clocks and leave it at those timings lol

 

[Kei]

Haha, that'll work too but you'll need a way to adjust max read latency as well as it's a very important timing that gives a very large boost if set correctly.

I've attatched two screen shots of max read latency tuning, one before and one after...pay careful attention to the Read speed and Latency value.

K

 

[Viscarious]

Indeed. Max lat is the way of the future.

Wait...what?

Anyways...I just released Archimonde into the world of ... I forgot the worlds name. Anyways, (again), Archimonde made a model of the city of stormwind out of sand and destroyed it. It was awesome.

 

[Kei]

Vis, you make me happy haha

K

 

[Chicken Patty]

Hey Kei. I ran mem test. All night and no errors at 3.3ghz. Do I have to run it at 3.4ghz which is where it is not stable? Just wanted to make sure that at what I am now its ok. Let me know so I can leave it running tonight.

Or if anybody else wants to chime in

 

[Kei]

Okay I think I'm done for today, I'm gonna watch some New Amsterdam or something...that's a really cool show if you're looking for watch anytime soon.

K