Jump to content

I have the powermac g5 with the dual g5 watercooled processors. It has no operating system on it and when it turns on it shows nothing on the monitor and slowly bumps the fan speed up little by little until its at amx and stays there with nothing on the screen. Ive tried reseating the ram and that hasnt helped. Thanks.

Link to comment
https://linustechtips.com/topic/812560-powermac-g5-not-posting/
Share on other sites

Link to post
Share on other sites

4 minutes ago, DK_BLEU said:

I have the powermac g5 with the dual g5 watercooled processors. It has no operating system on it and when it turns on it shows nothing on the monitor and slowly bumps the fan speed up little by little until its at amx and stays there with nothing on the screen. Ive tried reseating the ram and that hasnt helped. Thanks.

Have you tried resetting the PMU/SMU? To do that, press the button shown on the picture below.

300341_1.gif

Intel® Core™ i7-12700 | GIGABYTE B660 AORUS MASTER DDR4 | Gigabyte Radeon™ RX 6650 XT Gaming OC | 32GB Corsair Vengeance® RGB Pro SL DDR4 | Samsung 990 Pro 1TB | WD Green 1.5TB | Windows 11 Pro | NZXT H510 Flow White
Sony MDR-V250 | GNT-500 | Logitech G610 Orion Brown | Logitech G402 | Samsung C27JG5 | ASUS ProArt PA238QR
iPhone 12 Mini (iOS 18.3) | iPhone 15 (iOS 18.3.1) | KZ AZ09 Pro x KZ ZSN Pro X | Sennheiser HD450bt
Intel® Core™ i7-1265U | Kioxia KBG50ZNV512G | 16GB DDR4 | Windows 11 Enterprise | HP EliteBook 650 G9
Intel® Core™ i5-8520U | WD Blue M.2 250GB | 1TB Seagate FireCuda | 16GB DDR4 | Windows 11 Home | ASUS Vivobook 15 
Intel® Core™ i7-3520M | GT 630M | 16 GB Corsair Vengeance® DDR3 |
Samsung 850 EVO 250GB | macOS Catalina | Lenovo IdeaPad P580

Link to comment
https://linustechtips.com/topic/812560-powermac-g5-not-posting/#findComment-10197101
Share on other sites

Link to post
Share on other sites

There's one with water-cooled CPUs? I've got a PowerMac G5 (runs like a charm, but can't really do much compared to my PC and work Mac), but I think it's air cooled. And try resetting the SMC like @BlueChinchillaEatingDorito said. And do you have an OS X install disc?

Gaming PC NAS Laptop Workstation

CPU: i5 12600KF 6P+4E Ryzen 7 3700X M4 SoC 4P+6E Xeon X5690 6c12t

Cooler: Noctua NH-D15S Wraith Stealth w/NF-A9 Passive Apple CPU Cooler

Motherboard: ASRock Z690 ITX/ax ASUS Pro B550M-C/CSM Apple J713AP Mac-F221BEC8 (Mac Pro 5,1)

RAM: 2x16GB 3600Mhz DDR4 2x16GB 2400MHz DDR4 24GB Micron LPDDR5 4x8GB 1333MHz ECC DDR3

GPU: Sapphire Pulse Radeon 9060 XT 16GB Radeon WX2100 M4 SoC 10C Radeon RX 5700

Storage: 1TB MP34 + 2TB P41 500GB SSD + 2x4TB IronWolf Pro in ZFS Mirror Apple AP0512Z 1TB Crucial MX500

ODD: LG WH14NS40 None LG GP65NB60 USB DVD Writer Don't know

PSU: EVGA 850W GM Silverstone SST-TX300 53.8Wh LiPo Battery Delta DPS-980BB

Case: Silverstone Sugo 14 Dell Inspiron 530S Mac16,12 chassis (13" MBA) 2009-2012 Mac Pro "Cheese Grater"

OS: Gentoo Linux TrueNAS Scale macOS 26 Tahoe Fedora Linux

 

Display: LG 27UK650-W (4K 60Hz IPS panel)

Mouse: EVGA X17

Keyboard: Corsair K55 RGB

 

Mobile/Work Devices: 14" M5P MacBook Pro (work) - iPhone 17 Pro - Apple Watch S11

 

Other Misc Devices: iPod Video (Gen 5.5E, iFlash Solo w/128GB SD Card, Rockbox), Nintendo Switch

 

Vehicles: 2002 Ford F150, 2003 Harley-Davidson Sportster 1200, 2022 Kawasaki KLR650, 1994 DR350SE

Link to comment
https://linustechtips.com/topic/812560-powermac-g5-not-posting/#findComment-10197115
Share on other sites

Link to post
Share on other sites

3 minutes ago, Zando Bob said:

There's one with water-cooled CPUs? I've got a PowerMac G5 (runs like a charm, but can't really do much compared to my PC and work Mac), but I think it's air cooled. And try resetting the SMC like @BlueChinchillaEatingDorito said. And do you have an OS X install disc?

Yea, I believe the ones with dual processors and quad processors came with water-cooling. 

 

The early ones were problematic as they had problems with leakage and well... this happened. 

powermac-g5-coolant-leak.jpg

Intel® Core™ i7-12700 | GIGABYTE B660 AORUS MASTER DDR4 | Gigabyte Radeon™ RX 6650 XT Gaming OC | 32GB Corsair Vengeance® RGB Pro SL DDR4 | Samsung 990 Pro 1TB | WD Green 1.5TB | Windows 11 Pro | NZXT H510 Flow White
Sony MDR-V250 | GNT-500 | Logitech G610 Orion Brown | Logitech G402 | Samsung C27JG5 | ASUS ProArt PA238QR
iPhone 12 Mini (iOS 18.3) | iPhone 15 (iOS 18.3.1) | KZ AZ09 Pro x KZ ZSN Pro X | Sennheiser HD450bt
Intel® Core™ i7-1265U | Kioxia KBG50ZNV512G | 16GB DDR4 | Windows 11 Enterprise | HP EliteBook 650 G9
Intel® Core™ i5-8520U | WD Blue M.2 250GB | 1TB Seagate FireCuda | 16GB DDR4 | Windows 11 Home | ASUS Vivobook 15 
Intel® Core™ i7-3520M | GT 630M | 16 GB Corsair Vengeance® DDR3 |
Samsung 850 EVO 250GB | macOS Catalina | Lenovo IdeaPad P580

Link to comment
https://linustechtips.com/topic/812560-powermac-g5-not-posting/#findComment-10197146
Share on other sites

Link to post
Share on other sites

4 minutes ago, BlueChinchillaEatingDorito said:

Yea, I believe the ones with dual processors and quad processors came with water-cooling. 

 

The early ones were problematic as they had problems with leakage and well... this happened. 

powermac-g5-coolant-leak.jpg

Oh... I don't think mine is a dual CPU. I forget which one it is...

Gaming PC NAS Laptop Workstation

CPU: i5 12600KF 6P+4E Ryzen 7 3700X M4 SoC 4P+6E Xeon X5690 6c12t

Cooler: Noctua NH-D15S Wraith Stealth w/NF-A9 Passive Apple CPU Cooler

Motherboard: ASRock Z690 ITX/ax ASUS Pro B550M-C/CSM Apple J713AP Mac-F221BEC8 (Mac Pro 5,1)

RAM: 2x16GB 3600Mhz DDR4 2x16GB 2400MHz DDR4 24GB Micron LPDDR5 4x8GB 1333MHz ECC DDR3

GPU: Sapphire Pulse Radeon 9060 XT 16GB Radeon WX2100 M4 SoC 10C Radeon RX 5700

Storage: 1TB MP34 + 2TB P41 500GB SSD + 2x4TB IronWolf Pro in ZFS Mirror Apple AP0512Z 1TB Crucial MX500

ODD: LG WH14NS40 None LG GP65NB60 USB DVD Writer Don't know

PSU: EVGA 850W GM Silverstone SST-TX300 53.8Wh LiPo Battery Delta DPS-980BB

Case: Silverstone Sugo 14 Dell Inspiron 530S Mac16,12 chassis (13" MBA) 2009-2012 Mac Pro "Cheese Grater"

OS: Gentoo Linux TrueNAS Scale macOS 26 Tahoe Fedora Linux

 

Display: LG 27UK650-W (4K 60Hz IPS panel)

Mouse: EVGA X17

Keyboard: Corsair K55 RGB

 

Mobile/Work Devices: 14" M5P MacBook Pro (work) - iPhone 17 Pro - Apple Watch S11

 

Other Misc Devices: iPod Video (Gen 5.5E, iFlash Solo w/128GB SD Card, Rockbox), Nintendo Switch

 

Vehicles: 2002 Ford F150, 2003 Harley-Davidson Sportster 1200, 2022 Kawasaki KLR650, 1994 DR350SE

Link to comment
https://linustechtips.com/topic/812560-powermac-g5-not-posting/#findComment-10197168
Share on other sites

Link to post
Share on other sites

  • 2 weeks later...
On 7/25/2017 at 1:11 PM, Zando Bob said:

There's one with water-cooled CPUs? I've got a PowerMac G5 (runs like a charm, but can't really do much compared to my PC and work Mac), but I think it's air cooled. And try resetting the SMC like @BlueChinchillaEatingDorito said. And do you have an OS X install disc?

I have reset it multiple times and I dont have a dvd

Link to comment
https://linustechtips.com/topic/812560-powermac-g5-not-posting/#findComment-10247670
Share on other sites

Link to post
Share on other sites

9 hours ago, DK_BLEU said:

I have reset it multiple times and I dont have a dvd

Hmmmmm. All the caps on the mobo look fine and the GPU is seated properly and working?

Gaming PC NAS Laptop Workstation

CPU: i5 12600KF 6P+4E Ryzen 7 3700X M4 SoC 4P+6E Xeon X5690 6c12t

Cooler: Noctua NH-D15S Wraith Stealth w/NF-A9 Passive Apple CPU Cooler

Motherboard: ASRock Z690 ITX/ax ASUS Pro B550M-C/CSM Apple J713AP Mac-F221BEC8 (Mac Pro 5,1)

RAM: 2x16GB 3600Mhz DDR4 2x16GB 2400MHz DDR4 24GB Micron LPDDR5 4x8GB 1333MHz ECC DDR3

GPU: Sapphire Pulse Radeon 9060 XT 16GB Radeon WX2100 M4 SoC 10C Radeon RX 5700

Storage: 1TB MP34 + 2TB P41 500GB SSD + 2x4TB IronWolf Pro in ZFS Mirror Apple AP0512Z 1TB Crucial MX500

ODD: LG WH14NS40 None LG GP65NB60 USB DVD Writer Don't know

PSU: EVGA 850W GM Silverstone SST-TX300 53.8Wh LiPo Battery Delta DPS-980BB

Case: Silverstone Sugo 14 Dell Inspiron 530S Mac16,12 chassis (13" MBA) 2009-2012 Mac Pro "Cheese Grater"

OS: Gentoo Linux TrueNAS Scale macOS 26 Tahoe Fedora Linux

 

Display: LG 27UK650-W (4K 60Hz IPS panel)

Mouse: EVGA X17

Keyboard: Corsair K55 RGB

 

Mobile/Work Devices: 14" M5P MacBook Pro (work) - iPhone 17 Pro - Apple Watch S11

 

Other Misc Devices: iPod Video (Gen 5.5E, iFlash Solo w/128GB SD Card, Rockbox), Nintendo Switch

 

Vehicles: 2002 Ford F150, 2003 Harley-Davidson Sportster 1200, 2022 Kawasaki KLR650, 1994 DR350SE

Link to comment
https://linustechtips.com/topic/812560-powermac-g5-not-posting/#findComment-10249306
Share on other sites

Link to post
Share on other sites

  • 2 weeks later...
8 hours ago, DK_BLEU said:

yes, and I have no idea how to test the gpu, only one g5 and its a passive cooled gpu

It should use a PCIe slot, right? So you can pop it in a PC and make sure the card works. 

Gaming PC NAS Laptop Workstation

CPU: i5 12600KF 6P+4E Ryzen 7 3700X M4 SoC 4P+6E Xeon X5690 6c12t

Cooler: Noctua NH-D15S Wraith Stealth w/NF-A9 Passive Apple CPU Cooler

Motherboard: ASRock Z690 ITX/ax ASUS Pro B550M-C/CSM Apple J713AP Mac-F221BEC8 (Mac Pro 5,1)

RAM: 2x16GB 3600Mhz DDR4 2x16GB 2400MHz DDR4 24GB Micron LPDDR5 4x8GB 1333MHz ECC DDR3

GPU: Sapphire Pulse Radeon 9060 XT 16GB Radeon WX2100 M4 SoC 10C Radeon RX 5700

Storage: 1TB MP34 + 2TB P41 500GB SSD + 2x4TB IronWolf Pro in ZFS Mirror Apple AP0512Z 1TB Crucial MX500

ODD: LG WH14NS40 None LG GP65NB60 USB DVD Writer Don't know

PSU: EVGA 850W GM Silverstone SST-TX300 53.8Wh LiPo Battery Delta DPS-980BB

Case: Silverstone Sugo 14 Dell Inspiron 530S Mac16,12 chassis (13" MBA) 2009-2012 Mac Pro "Cheese Grater"

OS: Gentoo Linux TrueNAS Scale macOS 26 Tahoe Fedora Linux

 

Display: LG 27UK650-W (4K 60Hz IPS panel)

Mouse: EVGA X17

Keyboard: Corsair K55 RGB

 

Mobile/Work Devices: 14" M5P MacBook Pro (work) - iPhone 17 Pro - Apple Watch S11

 

Other Misc Devices: iPod Video (Gen 5.5E, iFlash Solo w/128GB SD Card, Rockbox), Nintendo Switch

 

Vehicles: 2002 Ford F150, 2003 Harley-Davidson Sportster 1200, 2022 Kawasaki KLR650, 1994 DR350SE

Link to comment
https://linustechtips.com/topic/812560-powermac-g5-not-posting/#findComment-10295880
Share on other sites

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×