Overclock.net › Forums › Case Mods & Cases › Computer Cases › Turning AT into ATX
New Posts  All Forums:Forum Nav:

Turning AT into ATX

post #1 of 13
Thread Starter 
Just a quick question: I never used an AT case, but is it possible to physically modify that kind of case to fit ATX motherboards? If so, how?
    
CPUMotherboardGraphicsRAM
AMD Athlon 64 2650e 1.6GHz MSI K9N2 Diamond 256MB Nvidia Quadro FX 1500 3.5GB DDR2 
Hard DriveOptical DriveOSPower
750GB IDE RAID 1 Array  DVD-RW drive Windows Server 2003 550W Power Supply 
CaseAudioOtherOther
Aopen HX08 Full Tower Case Soundblaster Live Value (PCI) 3Ware Escalade 7506-8 IDE Raid Controller card  PCI Express x1 USB 3.0 card 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
AMD Athlon 64 2650e 1.6GHz MSI K9N2 Diamond 256MB Nvidia Quadro FX 1500 3.5GB DDR2 
Hard DriveOptical DriveOSPower
750GB IDE RAID 1 Array  DVD-RW drive Windows Server 2003 550W Power Supply 
CaseAudioOtherOther
Aopen HX08 Full Tower Case Soundblaster Live Value (PCI) 3Ware Escalade 7506-8 IDE Raid Controller card  PCI Express x1 USB 3.0 card 
  hide details  
Reply
post #2 of 13
here is a quick pic of what a AT mobo looks like

as you can see, there was no IO cluster like the ATX so you've got alot of cutting to do. some drilling to get the ATX mobo mounting standoff's on there too.
post #3 of 13
Thread Starter 
I see now, just cut the rectangular space for the back IO and drill screw holes for the Mobo. Sounds simple enough. Hopefully I can soon bring life back into one of those old AT towers! Thanks
    
CPUMotherboardGraphicsRAM
AMD Athlon 64 2650e 1.6GHz MSI K9N2 Diamond 256MB Nvidia Quadro FX 1500 3.5GB DDR2 
Hard DriveOptical DriveOSPower
750GB IDE RAID 1 Array  DVD-RW drive Windows Server 2003 550W Power Supply 
CaseAudioOtherOther
Aopen HX08 Full Tower Case Soundblaster Live Value (PCI) 3Ware Escalade 7506-8 IDE Raid Controller card  PCI Express x1 USB 3.0 card 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
AMD Athlon 64 2650e 1.6GHz MSI K9N2 Diamond 256MB Nvidia Quadro FX 1500 3.5GB DDR2 
Hard DriveOptical DriveOSPower
750GB IDE RAID 1 Array  DVD-RW drive Windows Server 2003 550W Power Supply 
CaseAudioOtherOther
Aopen HX08 Full Tower Case Soundblaster Live Value (PCI) 3Ware Escalade 7506-8 IDE Raid Controller card  PCI Express x1 USB 3.0 card 
  hide details  
Reply
post #4 of 13
dont forget to cut ATX powersupply hole too. AT powersupplies were rather LARGE
post #5 of 13
but if you are REALLY into doing a project have you considered a HTPC based on the ancient XT cases?
post #6 of 13
It's possible to mod anything to fit almost anything. That said, everything is different between ATX and AT. Orientation, I/O, stand-off holes, all in different places.
Primary
(15 items)
 
Secondary
(13 items)
 
In progress
(10 items)
 
CPUMotherboardGraphicsRAM
5820K @ 4.3/3.6GHz core/uncore, 1.225/1.2v Gigabyte X99 SOC Champion (F22n) 2x Sapphire R9 290X Tri-X OC New Edition (10036... 4x4GiB Crucial @ 2667, 12-11-12-27-T1, 1.37v 
Hard DriveHard DriveHard DriveCooling
Plextor M6e 128GB (fw 1.05) M.2 (PCI-E 2.0 2x) 2x Crucial M4 256GB 4x WD Scorpio Black 500GB Cooler Master Nepton 280L 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 BenQ BL3200PT Filco Majestouch Tenkeyless (MX Brown) Corsair RM1000x 
CaseMouseAudio
Fractal Design Define R4 Logitech G402 Realtek ALC1150 + M-Audio AV40 
CPUMotherboardGraphicsRAM
X5670 @ 4.4/3.2GHz core/uncore, 1.36 vcore, 1.2... Gigabyte X58A-UD5 r2.0 w/FF3mod10 BIOS Reference R9 290X w/Stilt's MLU 1000e / 1375m E... 2x Samsung MV-3V4G3D/US @ 2000, 10-11-11-30-T1,... 
RAMHard DriveHard DriveHard Drive
1x Crucial BLT4G3D1608ET3LX0 @ 2000, 10-11-11-3... OCZ (Toshiba) Trion 150 120GB Hyundai Sapphire 120GB 3x Hitachi Deskstar 7k1000.C 1TB 
CoolingOSPowerCase
Noctua NH-D14 Windows 7 Pro x64 SP1 Antec TP-750 Fractal Design R5 
Audio
ASUS Xonar DS 
CPUMotherboardGraphicsRAM
i7-6800K @ 4.3/3.5GHz core/uncore, 1.36/1.2v ASRock X99 OC Formula (P3.10) GTX 780 (temporary) 4x4GiB Crucial DDR4-2400 @ 11-13-12-28-T2, 1.33v 
Hard DriveHard DriveCoolingOS
Intel 600p 256GB NVMe 2x HGST Travelstar 7k1000 1TB Corsair H55 (temporary) Windows Server 2016 Datacenter 
PowerCase
Seasonic SS-860XP2 Corsair Carbide Air 540 
  hide details  
Reply
Primary
(15 items)
 
Secondary
(13 items)
 
In progress
(10 items)
 
CPUMotherboardGraphicsRAM
5820K @ 4.3/3.6GHz core/uncore, 1.225/1.2v Gigabyte X99 SOC Champion (F22n) 2x Sapphire R9 290X Tri-X OC New Edition (10036... 4x4GiB Crucial @ 2667, 12-11-12-27-T1, 1.37v 
Hard DriveHard DriveHard DriveCooling
Plextor M6e 128GB (fw 1.05) M.2 (PCI-E 2.0 2x) 2x Crucial M4 256GB 4x WD Scorpio Black 500GB Cooler Master Nepton 280L 
OSMonitorKeyboardPower
Windows 7 Professional x64 SP1 BenQ BL3200PT Filco Majestouch Tenkeyless (MX Brown) Corsair RM1000x 
CaseMouseAudio
Fractal Design Define R4 Logitech G402 Realtek ALC1150 + M-Audio AV40 
CPUMotherboardGraphicsRAM
X5670 @ 4.4/3.2GHz core/uncore, 1.36 vcore, 1.2... Gigabyte X58A-UD5 r2.0 w/FF3mod10 BIOS Reference R9 290X w/Stilt's MLU 1000e / 1375m E... 2x Samsung MV-3V4G3D/US @ 2000, 10-11-11-30-T1,... 
RAMHard DriveHard DriveHard Drive
1x Crucial BLT4G3D1608ET3LX0 @ 2000, 10-11-11-3... OCZ (Toshiba) Trion 150 120GB Hyundai Sapphire 120GB 3x Hitachi Deskstar 7k1000.C 1TB 
CoolingOSPowerCase
Noctua NH-D14 Windows 7 Pro x64 SP1 Antec TP-750 Fractal Design R5 
Audio
ASUS Xonar DS 
CPUMotherboardGraphicsRAM
i7-6800K @ 4.3/3.5GHz core/uncore, 1.36/1.2v ASRock X99 OC Formula (P3.10) GTX 780 (temporary) 4x4GiB Crucial DDR4-2400 @ 11-13-12-28-T2, 1.33v 
Hard DriveHard DriveCoolingOS
Intel 600p 256GB NVMe 2x HGST Travelstar 7k1000 1TB Corsair H55 (temporary) Windows Server 2016 Datacenter 
PowerCase
Seasonic SS-860XP2 Corsair Carbide Air 540 
  hide details  
Reply
post #7 of 13
well... I believe the expansion card height was the same
post #8 of 13
What blameless said. It can be done but the amount of time and effort to mod the case to make everything fit to me doesnt seem worth while. I messed around with quite a few AT systems. Sockets 3, 5 and 7 and even between the different sockets there are some differences. (There were a lot of propitiatory motherboards back in the day) If it were me personally I would just buy a cheap ATX case and be done with it. But if you want to tinker around go for it.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 4.6ghz Asus P8P67 Pro EVGA SC GTX 570 G.SKILL Ripjaws X DDR3 2133 8GB [2 x 4GB] 
Hard DriveOSMonitorPower
Crucial M4 128gb, x2 WD6400AAKS Windows 7 Ultimate 64-Bit Samsung SyncMaster T240 Silverstone DA800 800w 
Case
Lian Li PC-A70B 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 4.6ghz Asus P8P67 Pro EVGA SC GTX 570 G.SKILL Ripjaws X DDR3 2133 8GB [2 x 4GB] 
Hard DriveOSMonitorPower
Crucial M4 128gb, x2 WD6400AAKS Windows 7 Ultimate 64-Bit Samsung SyncMaster T240 Silverstone DA800 800w 
Case
Lian Li PC-A70B 
  hide details  
Reply
post #9 of 13
Thread Starter 
Well I'm not going to be modding those XT cases just yet.... though it would look real cool! My plan is to find an AT full tower and mod it so I can move my complete HP computer system into a bigger, more luxurious case.
    
CPUMotherboardGraphicsRAM
AMD Athlon 64 2650e 1.6GHz MSI K9N2 Diamond 256MB Nvidia Quadro FX 1500 3.5GB DDR2 
Hard DriveOptical DriveOSPower
750GB IDE RAID 1 Array  DVD-RW drive Windows Server 2003 550W Power Supply 
CaseAudioOtherOther
Aopen HX08 Full Tower Case Soundblaster Live Value (PCI) 3Ware Escalade 7506-8 IDE Raid Controller card  PCI Express x1 USB 3.0 card 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
AMD Athlon 64 2650e 1.6GHz MSI K9N2 Diamond 256MB Nvidia Quadro FX 1500 3.5GB DDR2 
Hard DriveOptical DriveOSPower
750GB IDE RAID 1 Array  DVD-RW drive Windows Server 2003 550W Power Supply 
CaseAudioOtherOther
Aopen HX08 Full Tower Case Soundblaster Live Value (PCI) 3Ware Escalade 7506-8 IDE Raid Controller card  PCI Express x1 USB 3.0 card 
  hide details  
Reply
post #10 of 13
Another thing you may have to consider is the power switch. AT vs ATX is completely different. You would have to buy a separate ATX power switch for the case and mod that to fit. I.E drill a fat hole in the front.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 4.6ghz Asus P8P67 Pro EVGA SC GTX 570 G.SKILL Ripjaws X DDR3 2133 8GB [2 x 4GB] 
Hard DriveOSMonitorPower
Crucial M4 128gb, x2 WD6400AAKS Windows 7 Ultimate 64-Bit Samsung SyncMaster T240 Silverstone DA800 800w 
Case
Lian Li PC-A70B 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
2500k @ 4.6ghz Asus P8P67 Pro EVGA SC GTX 570 G.SKILL Ripjaws X DDR3 2133 8GB [2 x 4GB] 
Hard DriveOSMonitorPower
Crucial M4 128gb, x2 WD6400AAKS Windows 7 Ultimate 64-Bit Samsung SyncMaster T240 Silverstone DA800 800w 
Case
Lian Li PC-A70B 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Computer Cases
Overclock.net › Forums › Case Mods & Cases › Computer Cases › Turning AT into ATX