June 26th, 2003, 11:55 PM
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#1 (permalink)
| | Junior Member
Join Date: Jun 2003
Posts: 5
|  Upgrade BIOS = less heat?
Ok - I'm back with some very weird news, but I had heard it some time ago. The only thing I changed was my BIOS version.
First, PC specs: - Mobo is ASUS A7V333
- 512MB PC2700 RAM
- ATI Radeon 9500 Pro
- AMD XP 2000+ with a Tornado 7+ on it (have new fan on order).
- Fan in back blowing in, with a single fan in the PS blowing out and no vents in the bottom (this will soon change when a new PS comes in).
No overclocking (yet) and ambient temp is under 80F (27C), and guessing even under 70F at times. With my Volcano 7+ running at max speed (6500RPM), the base temp would never drop below 45C but frequently hung around 50C, and under load would easily get up to and over 55C. At about 57-60C it would become unstable. Temperatures are gathered from the Asus Probe.
To the meat of the matter:
I looked around Asus's site and found that there was a much newer BIOS than I had (1006 was on the PC), so I upgraded it (1017). The next boot I did, My CPU Temp matches my mobo temp at 37C. That never happened before, so I was suspicious. Even from a cold startup, the CPU was always a little warmer.
Right now, I'm looking to perform some burn-in tests to see how warm the CPU will get with the Volcano 7+ set at its lowest speed (4000RPM). At idle it is about 42C - the lowest I've ever seen it, even when it was running 6500RPM.
CPU: AMD XP2000+ (not overclocked)
Fan/heatsink: Volcano 7+
Rear fan blowing toward the Volcano 7+, no bottom vents in the PS, and the case's top and side are off.
Before BIOS upgrade:
No load at 6500RPM: 47C
Load at 6500RPM: 55C
After BIOS upgrade:
No load (at least 10 minutes):
4000RPM: 40C
5500RPM: 35C
6500RPM: 33C
Load (10 Minutes):
4000RPM: 44C
5500RPM: 41C
6500RPM: 36C
I have finally seen my mobo temp match or higher than my CPU! 
I wouldn't have believed it if I hadn't seen it. 
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June 27th, 2003, 12:15 AM
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#2 (permalink)
| | Ultimate Member
Join Date: Oct 2001 Location: Montreal, QC
Posts: 1,950
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I know some of the Via chipsets had problems misreporting CPU temperature, but all of my CPU temperatures have always been higher than the system temperature, as well.
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June 27th, 2003, 01:39 AM
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#3 (permalink)
| | Ultimate Member
Join Date: May 2003 Location: Idaho
Posts: 1,966
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I know my temperatures on my A7N8X went down when I flashed my bios once.
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Asus A7N8X Deluxe | AMD AthlonXP 2600+ | 512mb Corsair XMS Extreme DDR
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June 27th, 2003, 02:26 AM
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#4 (permalink)
| | Member
Join Date: Oct 2001 Location: philippines
Posts: 57
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happened to me too.
my system:
xp 1800+
a7v266-c
256mb ddr pc2100
volcano 9 hsf at 4440rpm
my temps dropped around 10 degrees celcius after a bios flash.
asus said the new bios had something to do with recalibrating my mobo's hardware monitor.
old temp:
58 degrees c at idle
new temp:
48 or 47 degress c
and it gets pretty hot here in the philippines.
pretty hot! | |
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June 27th, 2003, 04:25 AM
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#5 (permalink)
| | Senior Member
Join Date: Dec 2002 Location: California
Posts: 504
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Issues with the calibration of temp sensors can cause temp sensors to misreport temperatures. Newer BIOS revisions can change the Temp readouts of those sensors, by adjusting the values based on however badly those sensors are mis-calibrated.
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June 27th, 2003, 05:13 AM
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#6 (permalink)
| | just passin thru
Join Date: Oct 2001 Location: SW, OHIO
Posts: 5,774
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Same thing here with my MSI 845PE-Max (MS-6580). But MSI listed it as a "FIX". To be honest I think they fixed it a little TOO much IMO. The temps are extremely low.
MB: 27c
CPU: 32c
Case: 26.1c (Tt XaserII)
__________________
P4 2.4C@3.2GHz, 2GB Patriot Extreme DDR400 @ 426MHz, GeCube Radeon x1950xt 256mb AGP, MSI 865PE Neo2-P, WD 60GB HD / WD External 500GB HD / Enermax Whisper 460w PSU MYSPACE | |
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June 27th, 2003, 05:37 AM
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#7 (permalink)
| | Ultimate Member
Join Date: May 2002 Location: Stow, Ohio, Sol III
Posts: 1,190
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Sweeper, those temps do appear a little low. (You could keep Leftoves in that! )
HighTechHick, Your temps appear a little low too. It might be where your probe is in relation to the CPU. Have you tried MBM 5 ?
CPU: AMD XP2100+
MOBO: MSI 6380 RU+
CASE: Tt Xaser II
PSU: Tt 431 watts (dual fans 1600rpm)
CPU HSF: Tt Volcano 7+ (3500 rpm)
Total 8 fans
TEMPS;(Idle)
CPU: 45c
MoBo: 38c
Room: 23c MBM 5
Last edited by nomaxim : June 27th, 2003 at 05:44 AM.
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June 27th, 2003, 05:43 AM
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#8 (permalink)
| | Ultimate Member
Join Date: Nov 2002 Location: Kalispell, Montana
Posts: 1,675
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My cpu(2000+ OCed to 2100+) idels at like 35C fill loads at 40C. Stock hs/f. Custom mad cool air intake system.
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Urban is back.
And yes that is how you spell my name. I am living proof that 2+2=5
dontforget/rgdesb
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