opteron 150 on a shuttle

NqR · 11 Jun 2006 at 00:55

Hello.Since i am a bit of a lazy newbe(yes NOOB

) on overclocking i want to
be proposed some setup for my pc.
I ve got an opteron 150(2.4ghz) the venus core(90nm).I was told that this is the E4 Revision.
I am on a shuttle sn25p with ocz platinum cas2 2gb ram.

I would like you to suggest me a setup that i will not face any major increase in heat cause i want to run my fans at ultra low if it is possible.
Thank you for your time

Raikiri · 11 Jun 2006 at 02:02

Just increase the FSB not the voltage, heat output shouldnt increase much and 2.8 should be possible with a 150 on stock volts.

Stephen B · 11 Jun 2006 at 10:20

as above, I have a 170 in my SN26p running 1.35v and 250htt, in bios I am showing a temp of 40-42 degrees

I had a 140 in my sn25p at 280htt and iirc never saw over 50 degrees at load in bios

mc_bob · 11 Jun 2006 at 10:23

You may want to stick the RAM on a divider away so that doesn't limit your clock.

MC_Bob

NqR · 11 Jun 2006 at 12:20

as i said i am a bit noob

Can you please specify me what values/settings shall i put on the bios?
If i change the fsb wouldnt this affect my ram?

Stephen B · 11 Jun 2006 at 12:31

250htt should be achievable with no voltage increase, change the HTT multi to 4x[default is auto] and as above poster set a ram divider of 5:4 [htt:mem speed], unless you have ddr500 ram, in which case leave ratio 1:1

NqR · 11 Jun 2006 at 13:19

Thank you very much
I will try them and post back

NqR · 11 Jun 2006 at 13:28

I need to set the following settings
CPU Frequency(default is 200).shall i set it to 250?
HT Freq(def auto) set it to 4x?
ht width(16down , 16up)

I ve got the dram configuration(i have it at cas2 ddr 3200 settings)
Also what to you mean by 5:4 divider?
edit:i ve just read carefully about the divider.250htt so i should set the ram freq 200?That the stock ram freq right?

Murzo · 11 Jun 2006 at 14:21

Set Cpu Frequency = 250
Set HT Freq = 2.5 or 3

Put your RAM on a divider if your system is not stable at these settings.

Stephen B · 11 Jun 2006 at 14:46

Murzo said:
Set Cpu Frequency = 250
Set HT Freq = 2.5 or 3

Put your RAM on a divider if your system is not stable at these settings.

SN25P has a 1000 hyperbus [or whatever its called]

4x & 250 is spot on

default is 5x and 200

NqR · 11 Jun 2006 at 14:54

Stephen B said:
SN25P has a 1000 hyperbus [or whatever its called]

4x & 250 is spot on

default is 5x and 200

If i set the cpu freq to 250 and ht freq to 4x it wont boot.
It will show me a message in bios that the safe settings are on and that i should readjust cpu freq.

Stephen B · 11 Jun 2006 at 15:02

have you set mem speed to auto ?, it should automatically set a divider for you

you may need to enable reset config data option in bios also

I can assure you 4x and 250 htt is not your issue

Raikiri · 11 Jun 2006 at 15:09

NqR said:
If i set the cpu freq to 250 and ht freq to 4x it wont boot.
It will show me a message in bios that the safe settings are on and that i should readjust cpu freq.

Well, I have been running 4x250 in one of my systems for around 6 months so I doubt that will be a problem.

@ OP set the ram to 166mhz and then OC, with the FSB at 250 the ram will run at 208mhz

NqR · 11 Jun 2006 at 15:46

the bios wont let me boot with 250htt(known as cpu frequency in my bios).
Even if i lower the ram at 166 or at auto settings.
Btw what's ht width?it is set at 16up and 16 down.
I ve got it flashed to the latetest bios btw.

I tried some settings by myself though i didnt knew what i was doing

I tried 250htt x3 auto ddr settings -->bios massage again
225hht didnt get the bios message but the pc wont boot in windows,restarts.

Any help please?

edit:dont know if it is important right now but the current bios only goes up to 250cpu freq.From what i read on forums this may be a bios version issue since the majority of sn25p go up to 300htt

Stephen B · 11 Jun 2006 at 16:09

sounds like you may have a poor clocker and may need a cpu voltage hike

what temps do you see in bios for cpu @default speeds ?

and flashing to latest bios will indeed limit your htt to 250, bios "y" will let you do up to 300 iirc

NqR · 11 Jun 2006 at 16:19

at stock in bios the cpu temp is 40C and system temp is 47C

Speedfan temps are around CPU 49 idle and 50-51 under 100% cpu usage

NqR · 12 Jun 2006 at 00:26

any further help?
I will flash the bios to the y version.
Something i did understood is what the ht freq does(the 4x,5x etc).
I really appriciate your time and effort

trojan698 · 12 Jun 2006 at 00:40

You guys are forgetting that 12x250 = 3Ghz. Which I seriously doubt is possible on stock volts even with an Opty 150. Try lower the CPU multiplier to 11x, HT 4x, Ram Divider 5/6 - this will allow a slight oc on the ram which it should be capable of.

NqR · 12 Jun 2006 at 00:51

trojan698 said:
You guys are forgetting that 12x250 = 3Ghz. Which I seriously doubt is possible on stock volts even with an Opty 150. Try lower the CPU multiplier to 11x, HT 4x, Ram Divider 5/6 - this will allow a slight oc on the ram which it should be capable of.

noob alert here.how do i lower the cpu multiplier?
The ram devider is a setting i change?or just a reference so that if the htt is set to 250 lets say i set my ram freq to 208?
Also does ht width affect anything?

trojan698 · 12 Jun 2006 at 01:12

Ignore HT Width, dont change it. The ram needs to be put on a divider as it'll clock with the HTT if you dont which the ram would need looser timings in order to achieve. Tight timings > ram speed.
The CPU multi might be labelled CPU Ratio, not really sure tbh.