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#1
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3700+ can barely touch 2.5Ghz
Running a A64 3700+ San Diego and can barely run it at 2.5Ghz, in fact
I have to run it at the following. 275 HTT x 9 = 2475 @ 1.4v RAM runs around 230 M/B is ASUS A8N32-SLI, RAM is 1Gb of Geil 3500 which will run up to about 250Mhz with sloppy timings. Cooling is a Zalman 9500LED. I've tried vcore up to 1.55v but it make no difference other than temperature increase. Anything over 2500 cause prime failures and stability issue in games, anything over 2560 wont even boot into windows. All other voltages are running at default/automatic setting, PEG-Link is disabled (my 7900GT didnt like FSB230 with it enabled) HTTbus is set 4x275 (1100) I see others reaching 2.6Ghz if not 2.7Ghz on air with 3700+, so am VERY disappointed in what im getting. Have I just got a turkey of a CPU or am I likely missing a setting or something? Any advice appreciated. |
#2
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3700+ can barely touch 2.5Ghz
It's worth trying one notch lower on the HTT ratio. It's only supposed to go
to 1000. The difference shouldn't be detectable on benchmarks, I think. -- Ed Light Smiley :-/ MS Smiley :-\ Send spam to the FTC at Thanks, robots. Bring the Troops Home: http://bringthemhomenow.org |
#3
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3700+ can barely touch 2.5Ghz
On Mon, 12 Jun 2006 03:42:59 +0100, Hopeful wrote:
All other voltages are running at default/automatic setting, PEG-Link is disabled (my 7900GT didnt like FSB230 with it enabled) HTTbus is set 4x275 (1100) I see others reaching 2.6Ghz if not 2.7Ghz on air with 3700+, so am VERY disappointed in what im getting. Have I just got a turkey of a CPU or am I likely missing a setting or something? Any advice appreciated. I agree with Ed. lower the HT bus to 3x, and while you're at it, lower the base ram bus to 133MHz, 166MHz max. Raise vcore to 1.5v and you should be able to go a lot higher on the FSB. I assume you want to get to 9x300. -- Want the ultimate in free OTA SD/HDTV Recorder? http://mythtv.org http://mysettopbox.tv/knoppmyth.html Usenet alt.video.ptv.mythtv My server http://wesnewell.no-ip.com/cpu.php HD Tivo S3 compared http://wesnewell.no-ip.com/mythtivo.htm |
#4
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3700+ can barely touch 2.5Ghz
Wes Newell wrote: On Mon, 12 Jun 2006 03:42:59 +0100, Hopeful wrote: All other voltages are running at default/automatic setting, PEG-Link is disabled (my 7900GT didnt like FSB230 with it enabled) HTTbus is set 4x275 (1100) I see others reaching 2.6Ghz if not 2.7Ghz on air with 3700+, so am VERY disappointed in what im getting. Have I just got a turkey of a CPU or am I likely missing a setting or something? Any advice appreciated. I agree with Ed. lower the HT bus to 3x, and while you're at it, lower the base ram bus to 133MHz, 166MHz max. Raise vcore to 1.5v and you should be able to go a lot higher on the FSB. I assume you want to get to 9x300. Thanks for replying.. Tried dropping HTTBus to 3x but its not making any difference 300x9 (2700) wont even post 300x8.5 (2550) will boot into windows but fails prime in less than 60sec 300x8 (2400) is stable (so I know 300fsb is fine) Tried upping vcore to 1.55 and it made no difference, upping it to 1.6v and that allows it to boot into windows at a little over 2.6Ghz but very flakey (prime fail and random BSOD). Looks like this processor is a real lemon (compared to most). p.s. What sort of temperatures should I be getting roughly? At the stable setting of 275x9 Im currently getting around 60c underload and around 51c at idle (this is with room temp atm is currently 28c but is usually more like 23/24c). p.p.s. Just noticed reports of some people getting warped versions of the same heat sink im using, judging by my temps is there a chance I might have such a heat sink? |
#5
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3700+ can barely touch 2.5Ghz
My Winnie at 2.4 and 1.45v idles at 27C. I would say, yes, you have cooling
problems. I really wouldn't want to get over 50C, ever. -- Ed Light Smiley :-/ MS Smiley :-\ Send spam to the FTC at Thanks, robots. Bring the Troops Home: http://bringthemhomenow.org |
#6
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3700+ can barely touch 2.5Ghz
Hopeful wrote:
Wes Newell wrote: On Mon, 12 Jun 2006 03:42:59 +0100, Hopeful wrote: All other voltages are running at default/automatic setting, PEG-Link is disabled (my 7900GT didnt like FSB230 with it enabled) HTTbus is set 4x275 (1100) I see others reaching 2.6Ghz if not 2.7Ghz on air with 3700+, so am VERY disappointed in what im getting. Have I just got a turkey of a CPU or am I likely missing a setting or something? Any advice appreciated. I agree with Ed. lower the HT bus to 3x, and while you're at it, lower the base ram bus to 133MHz, 166MHz max. Raise vcore to 1.5v and you should be able to go a lot higher on the FSB. I assume you want to get to 9x300. Thanks for replying.. Tried dropping HTTBus to 3x but its not making any difference 300x9 (2700) wont even post 300x8.5 (2550) will boot into windows but fails prime in less than 60sec 300x8 (2400) is stable (so I know 300fsb is fine) Tried upping vcore to 1.55 and it made no difference, upping it to 1.6v and that allows it to boot into windows at a little over 2.6Ghz but very flakey (prime fail and random BSOD). Looks like this processor is a real lemon (compared to most). p.s. What sort of temperatures should I be getting roughly? At the stable setting of 275x9 Im currently getting around 60c underload and around 51c at idle (this is with room temp atm is currently 28c but is usually more like 23/24c). p.p.s. Just noticed reports of some people getting warped versions of the same heat sink im using, judging by my temps is there a chance I might have such a heat sink? I forget the actual limit of the CPU (I think it gets crispy at 70 C), but your idle temps should never be over 50 (under 40 is pretty realistic) and I get nervous at 60C under load. Keep in mind that as your system and heasink collect dust, your temps will creep higher. These values also assume a less than optimal stock heatsink. Good aftermarket heatsinks should drop these numbers substantially. -Dylan C |
#7
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3700+ can barely touch 2.5Ghz
Ed Light wrote: My Winnie at 2.4 and 1.45v idles at 27C. I would say, yes, you have cooling problems. I really wouldn't want to get over 50C, ever. Now that room temperature has dropped to a more "normal" 22C system is idling at around 46c and under load its reaching about 54c. If you can get those sort of temperatures (I presume your using air cooling?) on a processor model which supposedly runs hotter than mine then it indeed sounds like I have cooling issues . Going to have to take off this 9500LED and check its not one of the warped ones, because if this isnt touching at centre of the die it may go some way to explaining my p**s poor results. All I'm looking for is 2.6Ghz, anything else is a bonus of course . |
#8
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3700+ can barely touch 2.5Ghz
Going to have to take off this 9500LED
My, that's a good unit. Can't remember if you mentioned your case fan situation? Is the heat being removed quickly? What did you do for grease? I'm using an Arctic Freezer 64 without the fan, ducted to the 1900 rpm 80mm panaflo case fan with aluminum tape. Running 3D sims it can get to 45C. I used Arctic Silver company's Alumina, following their instructions for pre-cleaning and application. -- Ed Light Smiley :-/ MS Smiley :-\ Send spam to the FTC at Thanks, robots. Bring the Troops Home: http://bringthemhomenow.org |
#9
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3700+ can barely touch 2.5Ghz
Ed Light wrote: Going to have to take off this 9500LED My, that's a good unit. Can't remember if you mentioned your case fan situation? Is the heat being removed quickly? What did you do for grease? I'm using an Arctic Freezer 64 without the fan, ducted to the 1900 rpm 80mm panaflo case fan with aluminum tape. Running 3D sims it can get to 45C. I used Arctic Silver company's Alumina, following their instructions for pre-cleaning and application. Case cooling is :- front intake - 1 x 120mm fan (running at 7v) rear exhaust - 2 x 80mm Akasa (adjustable speed fans - lowest speed atm) top exhaust - 1 x 80mm low noise/noname piece of cr*p (but its got the brightest LEDs I've *ever* seen on a fan) and almost forgot.. side panel intake - 1 x 80mm low(ish) speed So I don't think case cooling is an issue ;-) I don't trust the case temps from the motherboard readings as they seem to be right in the power regulation area of the motherboard. The fact the little sh***y optional fan which only cools this PR area (only supposed to be used in H2O cooled systems) drops the reported temperature by over 15c confirms that. I did measure it with an external probe and while I cant remember the readings it wasn't excessive, probably a little higher than average as this system does have 4xhdd in it. :-O Before anyone pipes up about 4xHDD causing excessive power load and maybe my o/c problems it makes no difference, tried with just one HDD powered up no difference. While 460W might be a little on the low side, its a quality supply and I've seen no evidence its being stressed (12v and 5v are rock solid stable and 3.3v line wobbles only a tiny amount (much less than any other system I've seen). |
#10
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3700+ can barely touch 2.5Ghz
Side fans can actually retard cpu cooling by interrupting the flow-through,
but not as much as you're experiencing, AFAIK. -- Ed Light Smiley :-/ MS Smiley :-\ Send spam to the FTC at Thanks, robots. Bring the Troops Home: http://bringthemhomenow.org |
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