Re: Dead super socket 7 ASUS P5A
Posted on Today, 09:31
Skalabala wrote on Yesterday, 16:20: I need to figure out where the power btn get its 5V from. Some schematics here Acer V58 diagnosis
Re: Voodoo 2 4444SX
Posted on 2024-05-02, 17:54
Beautiful. Quick question regarding an eventual release of the design files - I wanted to get a rough idea of how expensive it'd turn out, and looking up that FPGA it seems it already costs ~€2500 by itself [edit: Found another, similar one... -1FF instead of -2FF, but it still costs ~€2100), is …
Re: Dual Core CPUs on Intel i915 and i925 chipsets
Posted on 2024-04-28, 09:53
Hello everyone! I tried to do everything according to your method on an epox ep-5edai motherboard with a 915p chipset with a core 2 duo e6550, according to the post encoder it hangs on C1 or even on FF (no post codes) can you help me with this, thanks in advance Hello and welcome to Vogons! 1) epox …
Re: Intel D865PERL cpu stuck in RESET, no post
Posted on 2024-04-18, 18:37
Re-flowing the mosfets did not resolve the issue. Any ideas? Any power problem can cause active RESET signal ! Usually ICH gets PWROK (power OK) signal from VRMs and sets PLTRST (platform reset) into inactive state as an answer. Sometimes RESET for PCI bus (PCIRST) is controlled by a SIO chip …
Re: Asus P5N-D Crash Issue
Posted on 2024-04-12, 19:39
Hi and welcome to Vogons :) Maybe Win 10 loads the hardware harder than older OSes. Under high loading temperature of components is higher and it causes crashes. Also the mainboard is based on an old hot NVidia chipset that is not so reliable. Try to give more loading in Win 7 or XP to eliminate …
Re: MSI X-79 GD45, Help Resizable Bar for 6GB+ GPUs & ECC RAM
Posted on 2024-03-30, 17:43
Maybe you will be able to add Re-Bar into the BIOS by yourself if you make use of some tutorials. As example: https://github.com/xCuri0/ReBarUEFI https://youtu.be/vcJDWMpxpjE?si=t7cIOasdVFzXkKtc
Re: Help Save my Voodoo-3 build.
Posted on 2024-03-30, 17:17
Try to run the system in the minimal configuration with default settings (no overclocking!). If it won't help then eject a graphic card - the mainboard should beep a sequence "Videocard error". Depending on behavior you can also eject a RAM stick - the system should beep a sequence "RAM error".
Re: Retro motherboards that can fit 2 different PCI-e GPUs for Win98/XP gaming
Posted on 2024-03-29, 10:27
The main question is whether Windows 98 supports multiGPU configuration at all. What about more modern OSes - a bios should have option to enable multiGPU support. An application (game or whatever) should have ability to choose a directx graphic device. Also there were Hydra chips that tried to make …
Re: Asrock 775i65G R2.0 or 4CoreDual-VSTA
Posted on 2024-03-17, 10:57
Imperator, I've read somewhere that a bios of the 775i65g rev3 supports the rev2.03 one and newer cpu-s better then original. I've got this old revision mainboard but I haven't tried to flash the newer bios. Maybe someone already did it and will confirm it here.
Re: PCChips M575 - repair help - need a few V readings
Posted on 2024-03-16, 21:19
Sorry, but now the mainboard is in a place difficult to get from. But I suppose the schematics of LDO is pretty straightforward here and looks like on the picture. You can try to compare it and also measure nominal of resistors.
Re: PCChips M575 - repair help - need a few V readings
Posted on 2024-03-16, 10:42
Readings: with PSU on 1. 3.3V pin of the voltage selector for SIMM ram (close to slots) 2. CS4986 chip, close by simm (see pics down), pins 1 and 49 3. mosfets readings with and without cpu inserted (single voltage i.e.) ... Hello, 1. JP4 (both A and B) in 3.3v position - measured 3.5V on jumpers; …
Re: Dual Core CPUs on Intel i915 and i925 chipsets
Posted on 2024-03-13, 13:29
Thanks for explanation! I haven't known about this subtle difference. I've always mistaken thinking that they all use SMP. I've picked inside and it looks like 775XFire-VSTA bios has init code for Conroe but not for Wolfdale. Maybe I'll try to add Wolfdale support later. Asus p5gd1-vm bios was …
Re: Dual Core CPUs on Intel i915 and i925 chipsets
Posted on 2024-03-12, 17:29
Now time for second topic, Conroe and 925X chipset. I used Core 2 Extreme X6800 (only C2D with unlocked multiplier) and ASRock 775XFire-VSTA board. ... Vlad, I've made a topic about ASRock 775XFire-VSTA and Radeon HD incompatibility . Maybe it will be useful for you too . Have you managed to make …
Re: Dual Core CPUs on Intel i915 and i925 chipsets
Posted on 2024-03-11, 15:49
Now time for second topic, Conroe and 925X chipset. I used Core 2 Extreme X6800 (only C2D with unlocked multiplier) and ASRock 775XFire-VSTA board. ... Vlad, I've made a topic about ASRock 775XFire-VSTA and Radeon HD incompatibility . Maybe it will be useful for you too . Have you managed to make …
Re: Asrock 775XFire-VSTA (i925x chipset) BIOS mod
Posted on 2024-03-11, 15:34
P.S. At the time It was tested only in WinPE
Asrock 775XFire-VSTA (i925x chipset) BIOS mod
Posted on 2024-03-11, 15:32
Hi All, Inspired by Vlad94's experiments in his topic Dual Core CPUs on Intel i915 and i925 chipsets I acquired Asrock 775XFire-VSTA. I even hadn't started to tinker with dual-core CPU-s yet as the mainboard denied working with my Radeon HD5450 PCIe graphics. It just didn't post. I was disappointed. …
Re: Acer V58 diagnosis
Posted on 2024-02-28, 04:56
Can I check which one is CPURST? I have a RESET on the pinout, AK20 - that goes high for a moment and then it goes low as expected. Then it's OK. Also I would inspect for scratches places near board's mounting holes and socket7 CPU-FAN hooks. Once I repaired a mainboard that behaved like this ( …
Re: Acer V58 diagnosis
Posted on 2024-02-27, 18:02
tony359 wrote on 2024-02-27, 12:17: There is clock, voltage and reset works. But the CPU does not start. Do you mean CPURST signal is 0 (inactive) ?
Re: Acer V58 diagnosis
Posted on 2024-02-26, 20:36
Hi all, ... I would like to understand better what happens when a system is powered up. ... Thanks for now! Hi! I think you know about a thing called "Power-On Sequence diagram". Though I really doubt that there're ones for vintage motherboards. IMO, a datasheet of chipset is a good starting point …
Re: MSI MS-7366 V3 no post
Posted on 2024-02-16, 18:30
All nforce chipset with embedded graphics potentially faulty. It's just a matter of time. Though nvidia nforce chipsets (not others!) can be revived temporarily. Hot air (200-300 degree of Celsius for 20-30sec) applied to a die crystal makes magic. It's better to warm up slightly an area around the …
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