Dropped X1800XT load temps to 49C on air

[eva2000]

Unhappy with temps all round decided to take apart my entire bench rig and move it from behind my new 1HP portable air con unit to in front of it to see if I can cool the system now and guess what it's pretty cool now

Pics at http://www.fileshosts.com/DFI/NF4_SL...n_cooled/html/



X1800XT @621/747

Idle & Load


Air con is @26C reported temps
- reduced X1800XT idle temps from 43-44C at 100% fan speed to 32-33C at 100% fan speed
- reduced X1800XT voltage regulator temp from 52-55C to 39-42C
- reduced PWM and Chipset idle temps from 33-38C to 24-26C
- reduced X1800XT load temps from 67-71C to 47-49C



Hope it helps some


Update Jan 2, 2006:
this AC helps alot core nearly managed 783mhz at same volts 1.5v but it hung in 3dmark05 GT3 nature near the end hehe

now working on mem and like the progress

909-918mhz no mem volts needed
927mhz mem undervolted from 2.097v to 2.034v
936mhz mem undervolted from 2.097v to 2.037v okay
945mhz mem undervolted from 2.097v to 2.058v okay

HIS X1800XT stock hsf air
@776/936

3dmark05 = 11,435
http://service.futuremark.com/compare?3dm05=1642508



Update: Jan 6, 2006
Roughly seems it scales as

GPU
1.425-1.45v = 756mhz
1.475v = 762mhz
1.5v = 783mhz
1.525v = 789mhz
1.55v = 796mhz
1.575v = 803mhz

Mem seems to have gone from
2.097v = 909-936mhz
1.933v = 945mhz
1.949v = 954mhz
1.955-1.965v = 963mhz
1.979-1.987v = 972mhz with slight artifact in 3dmark05 GT3

To give you an idea of power draw at load for

Opteron 170 @2950mhz at 1.62v
Corsair Hydrocool 200EX
HIS X1800XT @803/972 1.575v/1.985v
4x 80GB Hitachi 7K80 SATA II raid 0
1x 250GB Maxtor Maxline Plus2 PATA

3dmark05 load = 580W

Load includes
- 61W from BenQ FP2091 + BenQ FP91G LCD monitors
- 34W from MCP655 pump + 5x 120x25mm fans + dual LCD monitor probe
- ~14W Corsair Hydrocool 200EX
- 580W - 104W = 476W for system at load

And so far 11,852 3dmark05!






Update: Jan 8, 2006

Closer and closer we get to 12k

512MB HIS X1800XT with Acetal Maze4 waterblock
@810/972

3dmark05 = 11,904
http://service.futuremark.com/compare?3dm05=1666337





AM3 = 116,845






Update: Jan 14, 2006

Changed to 2x 512MB Gskill PC4400LE TCCD 431 @295mhz 2.5-3-3-6 and finally breaks 12k by 1pt LOL

512MB HIS X1800XT with Acetal Maze4 waterblock
@816/981

3dmark05 @816/981 = 12,001
http://service.futuremark.com/compare?3dm05=1698234