w98se.com is a win98 Chinese resource collection website with very good compatibility. It can be opened with IE5.

WangYouGX wrote on 2025-09-03, 01:46:

I used 512MB of DDR3-2400 memory (OC down to 2800, memory performance plummeted under Win98). That's right! 512MB of DDR3 memory, modified specifically for Win98.
Z87 + 4790K + GeForce 7900GTX – the record is set.
Thanks to the author of w98se.com. Using your Win98 img image allowed me to easily deploy Win98 on my new machine. It's very easy on the Z87, Z390, and B365.

Nice! have you tried with hyperthreading disabled? It might just get you to 70K :edit or maybe another 500 points or so.

Dothan Burger wrote on 2025-09-03, 02:21:

WangYouGX wrote on 2025-09-03, 01:46:

I used 512MB of DDR3-2400 memory (OC down to 2800, memory performance plummeted under Win98). That's right! 512MB of DDR3 memory, modified specifically for Win98.
Z87 + 4790K + GeForce 7900GTX – the record is set.
Thanks to the author of w98se.com. Using your Win98 img image allowed me to easily deploy Win98 on my new machine. It's very easy on the Z87, Z390, and B365.

Nice! have you tried with hyperthreading disabled? It might just get you to 70K :edit or maybe another 500 points or so.

Hyperthreading has been disabled, currently 100Mhz*49 (Win98 displays abnormally), try setting the base FSB to 101Mhz or raising the Ratio to 50, and currently only one core is enabled

WangYouGX wrote on 2025-09-03, 02:33:

Dothan Burger wrote on 2025-09-03, 02:21:

WangYouGX wrote on 2025-09-03, 01:46:

I used 512MB of DDR3-2400 memory (OC down to 2800, memory performance plummeted under Win98). That's right! 512MB of DDR3 memory, modified specifically for Win98.
Z87 + 4790K + GeForce 7900GTX – the record is set.
Thanks to the author of w98se.com. Using your Win98 img image allowed me to easily deploy Win98 on my new machine. It's very easy on the Z87, Z390, and B365.

Nice! have you tried with hyperthreading disabled? It might just get you to 70K :edit or maybe another 500 points or so.

Hyperthreading has been disabled, currently 100Mhz*49 (Win98 displays abnormally), try setting the base FSB to 101Mhz or raising the Ratio to 50, and currently only one core is enabled

I'd love to see this modified 512mb DDR3 module.

Dothan Burger wrote on 2025-09-03, 11:12:

WangYouGX wrote on 2025-09-03, 02:33:

Dothan Burger wrote on 2025-09-03, 02:21:

Nice! have you tried with hyperthreading disabled? It might just get you to 70K :edit or maybe another 500 points or so.

Hyperthreading has been disabled, currently 100Mhz*49 (Win98 displays abnormally), try setting the base FSB to 101Mhz or raising the Ratio to 50, and currently only one core is enabled

I'd love to see this modified 512mb DDR3 module.

4G modified 512m,SPD modified

WangYouGX wrote on 2025-09-04, 00:38:

Dothan Burger wrote on 2025-09-03, 11:12:

WangYouGX wrote on 2025-09-03, 02:33:

Hyperthreading has been disabled, currently 100Mhz*49 (Win98 displays abnormally), try setting the base FSB to 101Mhz or raising the Ratio to 50, and currently only one core is enabled

I'd love to see this modified 512mb DDR3 module.

4G modified 512m,SPD modified

So it's not a physical modification? I was picturing a stick off DDR3 with most of the modules de-soldered. Hats off to you for taking it to the next level.

Dothan Burger wrote on 2025-09-04, 01:01:

WangYouGX wrote on 2025-09-04, 00:38:

Dothan Burger wrote on 2025-09-03, 11:12:

I'd love to see this modified 512mb DDR3 module.

4G modified 512m,SPD modified

So it's not a physical modification? I was picturing a stick off DDR3 with most of the modules de-soldered. Hats off to you for taking it to the next level.

They are accessed in parallel, and removing some particles will affect performance, and the particles may not meet the number of channels. At this time, modifying SPD is useless. I always stick to the physical memory control within 1Gb to run win98, and do not rely too much on large memory patches.

WangYouGX wrote on 2025-09-04, 04:22:

Dothan Burger wrote on 2025-09-04, 01:01:

WangYouGX wrote on 2025-09-04, 00:38:

4G modified 512m,SPD modified

So it's not a physical modification? I was picturing a stick off DDR3 with most of the modules de-soldered. Hats off to you for taking it to the next level.

They are accessed in parallel, and removing some particles will affect performance, and the particles may not meet the number of channels. At this time, modifying SPD is useless. I always stick to the physical memory control within 1Gb to run win98, and do not rely too much on large memory patches.

Is it like reprogramming the module to only think it's a 512mb stick?

Dothan Burger wrote on 2025-09-04, 01:01:

Is it like reprogramming the module to only think it's a 512mb stick?

Yes, it's just a matter of modifying the "BIOS" on the memory SPD chip to make it 512MB. I got the idea from seeing a memory factory programmer program. Currently, you can buy native DDR2 800Mhz 512MB and DDR2 667Mhz 256MB on the market. The minimum DDR3 I can change to is 512MB (single memory stick), and the minimum DDR4 can only be changed to 1Gb (single memory stick).

Dothan Burger wrote on 2025-09-04, 10:21:

WangYouGX wrote on 2025-09-04, 04:22:

Dothan Burger wrote on 2025-09-04, 01:01:

So it's not a physical modification? I was picturing a stick off DDR3 with most of the modules de-soldered. Hats off to you for taking it to the next level.

They are accessed in parallel, and removing some particles will affect performance, and the particles may not meet the number of channels. At this time, modifying SPD is useless. I always stick to the physical memory control within 1Gb to run win98, and do not rely too much on large memory patches.

Is it like reprogramming the module to only think it's a 512mb stick?

Modded 512MB DDR3 memory module?
PS
Typhoon Burner is a very useful, but at the same time very "muddy" utility.
I recommend running it in a virtual machine.

shevalier wrote on 2025-09-05, 05:32:

Modded 512MB DDR3 memory module? PS Typhoon Burner is a very useful, but at the same time very "muddy" utility. I recommend runn […]
Show full quote

Modded 512MB DDR3 memory module?
PS
Typhoon Burner is a very useful, but at the same time very "muddy" utility.
I recommend running it in a virtual machine.

Can this method reduce the capacity infinitely? Can DDR4 be reduced to 256Mb? DDR4 4GB 1R*4, thank you

Memory configuration starting with DDR1 (with very few exceptions) is determined solely by SPD, not by direct counting.
So you can definitely change DDR3 SPD, maybe Typhoon Burner knows about DDR4 too.
I wrote the XMP profiles by this method.
I don't have a ready-made recipe for reducing the volume.
There is just room for experimentation.
It is better to have a motherboard with Award BIOS.
SPDTool does not work very well with UEFI.
RWewrething works with UEFI, but you will have to edit it byte by byte, which is sad.

shevalier wrote on 2025-09-05, 08:50:

Memory configuration starting with DDR1 (with very few exceptions) is determined solely by SPD, not by direct counting. So you c […]
Show full quote

Memory configuration starting with DDR1 (with very few exceptions) is determined solely by SPD, not by direct counting.
So you can definitely change DDR3 SPD, maybe Typhoon Burner knows about DDR4 too.
I wrote the XMP profiles by this method.
I don't have a ready-made recipe for reducing the volume.
There is just room for experimentation.
It is better to have a motherboard with Award BIOS.
SPDTool does not work very well with UEFI.
RWewrething works with UEFI, but you will have to edit it byte by byte, which is sad.

If a board lets you adjust timings is their anything to gain by modifying timings on the SPD chip? Can lower latencies be achieved?

Dothan Burger wrote on 2025-09-05, 11:18:

If a board lets you adjust timings is their anything to gain by modifying timings on the SPD chip? Can lower latencies be achieved?

It depends on whether the memory chips support it.