Radeon 9800 Pro 256: Adding the LM63 Chip - Page 3

snipper_cr · 10th Dec 2004, 12:32 PM

A newly wired capacitor and new transitor in a new location i added tonight.. After several hours of extremely fine point soldering i put the card in...

Same results. No overdrive tab and ATItool detects LM63 chip but still only displays 51/31 or 83/63.

There is one more capacitor that is not on this board that is on the XT board but right now i dont think there is much more i can do.

Ive already ripped several solderpads and traces off the PCB (which requires me to bypass them with a peice of wire).

I have my 9800XT out and i seriously have spent up to 30 minutes with a flashlight just staring at them, following traces to solder points, checking capacitor/resistor addresses...

Next week out of the way and winter breast soon approaching i should be able to draw a definitive conclusion to this riddle i have formed.

Until then...geek on

Adrian Wong · 10th Dec 2004, 01:20 PM

Woah... I hope you find a way, man...

snipper_cr · 12th Dec 2004, 09:18 AM

Thanks for the encouragement Adrian

A bit of Advancement(?) was made tonight. I noted another solder location not on the Radeon 256 car thats on the XT card. I placed a low level capacitor and while the temps were wrong, they were refreshing themselves (51/0) and they would occasionally change like 52/1 or 52/-1.

Incase anyone doesnt know and still is reading this thread, the temps X/Y is R360 temp/ LM63 temp.

Im going to try following where C1524 comes from and where it goes.

Edit: As predictedl, it is the SMB_DAT line which from my reading is the way the LM63 chip outputs data. There is another line, the SMB_CLK which i need to trace/follow and see what it does.

I still think there is something im missing that can be corrected. Im going to try the fan tachometer mod tonight and see if i can get the tachometer up and running.

-Snipp

Chai · 12th Dec 2004, 11:43 AM

Just curious, does LM63 temp mean it's measuring the chip itself? Where is the thermal sensor for core temp?

snipper_cr · 13th Dec 2004, 02:04 AM

The LM63 monitors two tempatures:

The first is a remote diode tempature probe inherant to the R360 core.

The second is an onboard tempature probe that measures its own tempature, regardless of an external one being connected.

Chai · 13th Dec 2004, 02:21 AM

ic...thanks for the explaination.

snipper_cr · 17th Dec 2004, 02:35 AM

Ive gathered this much so far: My main problems is not between the R360 probe and the LM63 chip, but inbetween the LM63 and the SMBus.

Measuring resistance and stuff i traced the SMBus and SM_CLK lines and found two unbridged capacitors. Checked with the reference XT board they are identical capacitors.

I started with .5 uF on both and that didnt work. I went up to 1.0 uF and same results. I went up to 2.2 and the LM63 chip was no longer detected.

This leads me to beleive that i have to go less than .5 uF. I will be talking with our electronics teacher here at our High School and see if i can barrow a capacitance meter so i can get a a better reading and make sure the temps are accurate.

I'll know its working cause the ATItool will be displaying a LIVE tempature for itself. While it may not accurately read out the R360 probe it will at least read what its own tempature is.

Winter break starts tomarrow!!! Ill have plenty of time so wish me luck and hopefully ill have some good news to report... im going to get tthis!!!

Adrian Wong · 17th Dec 2004, 02:26 PM

All the best, snipper_cr!!

PsYkHoTiK · 17th Dec 2004, 05:16 PM

ATB!

I wouldnt have the guts to do this. So you're gonna make a write up on this..

That'd be so cool...

Infection · 24th Sep 2005, 03:26 PM

Well 9 months later.

So did it ever turn out to be a success?

10th Dec 2004, 12:32 PM	#21 (permalink)
snipper_cr Just Started Join Date: 15 Nov 2004 Posts: 32 Reputation: 5 Rep Power: 0	A newly wired capacitor and new transitor in a new location i added tonight.. After several hours of extremely fine point soldering i put the card in... Same results. No overdrive tab and ATItool detects LM63 chip but still only displays 51/31 or 83/63. There is one more capacitor that is not on this board that is on the XT board but right now i dont think there is much more i can do. Ive already ripped several solderpads and traces off the PCB (which requires me to bypass them with a peice of wire). I have my 9800XT out and i seriously have spent up to 30 minutes with a flashlight just staring at them, following traces to solder points, checking capacitor/resistor addresses... Next week out of the way and winter breast soon approaching i should be able to draw a definitive conclusion to this riddle i have formed. Until then...geek on __________________ Radeon 9800 Pro 256 True flash to XT (Water) P4 2.8@3.5 (350 Watt Peltier) DFI LanParty 875ProB RevB (Water) 2x Maxtor Sata 160 RAID 0 VIA Intel ICH5 onboard SATA RAID 1 Gig of PC4000 2x Maxtor IDE 40 Gig RAID 1 (important stuff) Via High Point 372 onboard IDE RAID Audigy 2 ZS Plat Aspire 500 Watt PSU Xconnect 500 Watt PSU (For peltier) TDK 12X DVD Burner Samsung 48x24x48 CD Burner ATI HDTV Wonder

10th Dec 2004, 01:20 PM	#22 (permalink)
Adrian Wong Da Boss Join Date: 10 Oct 2002 Location: In front of my ASUS F8V notebook! Posts: 30,124 Reputation: 3081 Rep Power: 67	Woah... I hope you find a way, man... __________________ Dr. Adrian Wong Tech ARP \| Blog @ Tech ARP \| The Free Trade Zone DYKT : The only offshore account I have is at the sand bank? Keep Tech ARP free! Visit our sponsors! We need PROGRAMMERS and TECHNICAL WRITERS! Contact us if you are a hot shot programmer or technical writer! My items for sale : 50x SD Card \| Memory Stick PRO \| Cyclone Energy Saver \| Seiko SS watch \| Tiger/Carlsberg beer jugs \| Travel Speakers \| Motorola V600 \| Nokia N90 SOLD! \| New Lowepro Mini Trekker AW Other items for sale @ the FTZ : Zalman CNPS9500 LED @ $20 \| Zalman CNPS7700 Cu @ $20 \| Zalman CNPS7000 Cu @ $20 \| Swarovski bracelet watches \| Dell 17" LCD \| Hi-Fi speakers \| English DIVX movies \| HP LaserJet toners! \| Office chairs

12th Dec 2004, 09:18 AM	#23 (permalink)
snipper_cr Just Started Join Date: 15 Nov 2004 Posts: 32 Reputation: 5 Rep Power: 0	Thanks for the encouragement Adrian A bit of Advancement(?) was made tonight. I noted another solder location not on the Radeon 256 car thats on the XT card. I placed a low level capacitor and while the temps were wrong, they were refreshing themselves (51/0) and they would occasionally change like 52/1 or 52/-1. Incase anyone doesnt know and still is reading this thread, the temps X/Y is R360 temp/ LM63 temp. Im going to try following where C1524 comes from and where it goes. Edit: As predictedl, it is the SMB_DAT line which from my reading is the way the LM63 chip outputs data. There is another line, the SMB_CLK which i need to trace/follow and see what it does. I still think there is something im missing that can be corrected. Im going to try the fan tachometer mod tonight and see if i can get the tachometer up and running. -Snipp __________________ Radeon 9800 Pro 256 True flash to XT (Water) P4 2.8@3.5 (350 Watt Peltier) DFI LanParty 875ProB RevB (Water) 2x Maxtor Sata 160 RAID 0 VIA Intel ICH5 onboard SATA RAID 1 Gig of PC4000 2x Maxtor IDE 40 Gig RAID 1 (important stuff) Via High Point 372 onboard IDE RAID Audigy 2 ZS Plat Aspire 500 Watt PSU Xconnect 500 Watt PSU (For peltier) TDK 12X DVD Burner Samsung 48x24x48 CD Burner ATI HDTV Wonder

12th Dec 2004, 11:43 AM	#24 (permalink)
Chai Administrator Join Date: 6 Oct 2002 Location: Maranello Posts: 26,757 Reputation: 3984 Rep Power: 72	Just curious, does LM63 temp mean it's measuring the chip itself? Where is the thermal sensor for core temp? __________________ Chai (Contributor & Forum Admin) http://www.techarp.com/

13th Dec 2004, 02:04 AM	#25 (permalink)
snipper_cr Just Started Join Date: 15 Nov 2004 Posts: 32 Reputation: 5 Rep Power: 0	The LM63 monitors two tempatures: The first is a remote diode tempature probe inherant to the R360 core. The second is an onboard tempature probe that measures its own tempature, regardless of an external one being connected. __________________ Radeon 9800 Pro 256 True flash to XT (Water) P4 2.8@3.5 (350 Watt Peltier) DFI LanParty 875ProB RevB (Water) 2x Maxtor Sata 160 RAID 0 VIA Intel ICH5 onboard SATA RAID 1 Gig of PC4000 2x Maxtor IDE 40 Gig RAID 1 (important stuff) Via High Point 372 onboard IDE RAID Audigy 2 ZS Plat Aspire 500 Watt PSU Xconnect 500 Watt PSU (For peltier) TDK 12X DVD Burner Samsung 48x24x48 CD Burner ATI HDTV Wonder

13th Dec 2004, 02:21 AM	#26 (permalink)
Chai Administrator Join Date: 6 Oct 2002 Location: Maranello Posts: 26,757 Reputation: 3984 Rep Power: 72	ic...thanks for the explaination. __________________ Chai (Contributor & Forum Admin) http://www.techarp.com/

17th Dec 2004, 02:35 AM	#27 (permalink)
snipper_cr Just Started Join Date: 15 Nov 2004 Posts: 32 Reputation: 5 Rep Power: 0	Ive gathered this much so far: My main problems is not between the R360 probe and the LM63 chip, but inbetween the LM63 and the SMBus. Measuring resistance and stuff i traced the SMBus and SM_CLK lines and found two unbridged capacitors. Checked with the reference XT board they are identical capacitors. I started with .5 uF on both and that didnt work. I went up to 1.0 uF and same results. I went up to 2.2 and the LM63 chip was no longer detected. This leads me to beleive that i have to go less than .5 uF. I will be talking with our electronics teacher here at our High School and see if i can barrow a capacitance meter so i can get a a better reading and make sure the temps are accurate. I'll know its working cause the ATItool will be displaying a LIVE tempature for itself. While it may not accurately read out the R360 probe it will at least read what its own tempature is. Winter break starts tomarrow!!! Ill have plenty of time so wish me luck and hopefully ill have some good news to report... im going to get tthis!!! __________________ Radeon 9800 Pro 256 True flash to XT (Water) P4 2.8@3.5 (350 Watt Peltier) DFI LanParty 875ProB RevB (Water) 2x Maxtor Sata 160 RAID 0 VIA Intel ICH5 onboard SATA RAID 1 Gig of PC4000 2x Maxtor IDE 40 Gig RAID 1 (important stuff) Via High Point 372 onboard IDE RAID Audigy 2 ZS Plat Aspire 500 Watt PSU Xconnect 500 Watt PSU (For peltier) TDK 12X DVD Burner Samsung 48x24x48 CD Burner ATI HDTV Wonder

17th Dec 2004, 02:26 PM	#28 (permalink)
Adrian Wong Da Boss Join Date: 10 Oct 2002 Location: In front of my ASUS F8V notebook! Posts: 30,124 Reputation: 3081 Rep Power: 67	All the best, snipper_cr!! __________________ Dr. Adrian Wong Tech ARP \| Blog @ Tech ARP \| The Free Trade Zone DYKT : The only offshore account I have is at the sand bank? Keep Tech ARP free! Visit our sponsors! We need PROGRAMMERS and TECHNICAL WRITERS! Contact us if you are a hot shot programmer or technical writer! My items for sale : 50x SD Card \| Memory Stick PRO \| Cyclone Energy Saver \| Seiko SS watch \| Tiger/Carlsberg beer jugs \| Travel Speakers \| Motorola V600 \| Nokia N90 SOLD! \| New Lowepro Mini Trekker AW Other items for sale @ the FTZ : Zalman CNPS9500 LED @ $20 \| Zalman CNPS7700 Cu @ $20 \| Zalman CNPS7000 Cu @ $20 \| Swarovski bracelet watches \| Dell 17" LCD \| Hi-Fi speakers \| English DIVX movies \| HP LaserJet toners! \| Office chairs

17th Dec 2004, 05:16 PM	#29 (permalink)
PsYkHoTiK "Little" Devil Join Date: 8 Apr 2004 Location: On the "throne" Posts: 14,320 Reputation: 4003 Rep Power: 59	ATB! I wouldnt have the guts to do this. So you're gonna make a write up on this.. That'd be so cool... __________________ Intel SLAPL 4.3GHz @ 1.35v : 2x2GB OCZ Platinum DDR2 1066 : Asus P5K Premium : WD Raptor X : G92 8800GTS 512mb 800MHz Core WIP : XFi Platinum : Silverstone OP650 : Silverstone TJ-07 : Vista Ultimate Edition : Dtek FuZion CPU : Swiftech MCW60 : MCP655 : Thermochill PA120.3 w Scythe Ultra Kaze : Tygon R3603 1/2" ID 3/4" OD CPU-Z: SLAPL : SLA9U : FX-55 : DDR 600 : VX www.techarp.com

24th Sep 2005, 03:26 PM	#30 (permalink)
Infection Newbie Join Date: 24 Sep 2005 Posts: 4 Reputation: 0 Rep Power: 0	Well 9 months later. So did it ever turn out to be a success?

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