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I just checked and that is indeed the document i'm using now for figuring out the startup protocol. (y) In the AMD Athlon Model 4 CPU datasheet PDF i found a reference to the push/pull driver adjustment resistor configuration when using open-drain mode which verifies that at least the...

I already promised @Tzk a while ago to send him one but i just can't find the PCB's anymore. :rolleyes: My next project will probably be a new revision for the FireRAM, the current design was made a couple of years ago and contains some design errors. I've also got some more experience in...

I've (finally) got a status update on the slotket project. I received the PCB's this week and assembled one adapter. Unfortunately both VIA and AMD boards won't post with it. I've also tried a couple of different cpu's but the post code keeps hanging on FF or FE which means that the CPU is doing...

I just got a status update from JLC that the PCB's have been made and assembled. :d Delivery is expected in about ~1.5 week according to FedEx. I still have to solder on the through-hole parts which are the CPU socket and DIP switches. This means soldering 490 joints by hand for each adapter...

The latest bios i could find for the 7IXE even showed 7IXE/7IXE4 at the post screen when i was testing the board. It seems like they are using the same bios. I also have the freezing problem at the hardware monitor tab, i found on somewhere on the internet that this is caused by a missing -5v...

The adapter is now officially in production, all production files have been verified and modified where needed. :d I also managed to find two more Slot A boards for testing: - Biostar M7MKE (VIA KX133) - Gigabyte 7IXE (AMD751) The Gigabyte board is particularly interesting because it is the...

The PCB order for the open-drain version has been placed, hopefully this time things will go a bit smoother:

Well, that's what I'm thinking. :) First it's important to understand how the SysPushPull parameter works. It's a 1-bit parameter in the ROMSIP that defines the state of the PushPull drivers. A value of 1 enables the PushPull drivers and puts the cpu in Push/Pull mode, a value of 0 leaves the...

Another update here. The PCB order was cancelled (un)fortunately due to a fault in the assembly file that i provided, it ended up being a small f*ckup in Excel that lead to the faulty file. I took this chance to revise the adapter once again, leading to the 8th major revision now. (V0.8) From...

I've been busy today with researching the SysPushPull parameter to enable the push-pull drivers on the cpu. For the AMD751 chipset, things seem to be more difficult than anticipated. For the VIA KX133 chipset however, things are looking brighter. With the KX133 chipset, the SysPushPull parameter...

Well, here we go... :coffee2: The PCB's are ordered now with assembly for the SMD components. I already bought some New-Old-Stock Sockets a while ago so this should be everything that's needed for the prototypes.

I was already talking with @Sparksnl about finding a way to mount his single stage on there. ;)

Tweakers.net has just posted a nice article about the slotket too: :) https://tweakers.net/geek/209052/tweaker-ontwerpt-na-23-jaar-eindelijk-een-amd-slot-a-naar-socket-a-adapter.html

I was fuzzing around a bit in SolidWorks 2001 on my Socket 7 system and decided to draw a setup for the Slotket to see how it would fit in a motherboard:

I just organized my Socket A CPU's and it's getting a bit confronting how big the hardware collection has gotten over the time. Most of this stuff was collected 5~10+ years ago when this kind of hardware was offered for pickup for next to nothing. That was about the only way i could afford my...

Oh nice, i see there is a car thread. 8-) Apart from overclocking old hardware, i also like old Volvo's and uhh well... "overclocking" them. This is my daily driver now for three years already: In those three years i did some modifications to the car. I really like the OEM (sleeper) look of...

Hmm, that looks promising. I wasn't even sure the 751 chipset would have a setting for the PushPull bit. Is it a Read/Write bit or a Read Only bit that's hardcoded with a strapping pin on the chipset? One other thing that could be interesting for reverse-engineering is that Gigabyte based the...

Making a PCB for it is very possible, but i don't know what those sockets will do to the signal integrity and how sensitive DDR1 is. Maybe it will work for testing at lower speeds but i don't see it working at the ragged edge for binning chips. When designing the PCB, you will probably want to...

@digitalbath Thank you for wanting to help me out with the bios stuff. I've attempted to understand the AMI and Award bios reverse-engineering guides but it looks like magic for me. The basic AMIBCP/MODBIN stuff is where i draw the line currently. I've made an archive with several Bios Patcher...

Hello everyone, i just registered so this is my first post. I've done some overclocking over the past few years and still do some hardmodding/helping every now and then, mostly for @Sparksnl. It's always a blast working together. I recently saw in the Bastelthread that the concept of a Slotket A...