It appears that the last supported OS is Microsoft Windows 2000 Pro. Looking at
this page, there are a large amount of updates and drivers that you could install and run in compatibility mode when installing them to try. It also seems that there are firmware updates for your GPU, and HDDs. There is also a BIOS update. If none of these resolve your issues, move to the next steps.
First, please remove all peripherals and non essentials from the system. Then please open up your PC and unplug and re-seat all connections. If necessary, replace any cables running to your HDD. Also, please remove your RAM, blast the slots with canned air and re-seat them, ensuring that they are seated properly and locked in with the retaining tabs. Please follow these ESD prevention measeures while doing so;
1. It is a good idea to buy an anti-static wristband, and follow the instructions for use.(They are sold at most electronics stores.) If you are going to do quite a lot of bench work, you might do well to invest in an anti-static mat.
2. If you don't have a wristband, you are not necessarily out of luck. Assuming that your PC is grounded, you can ground yourself by just keeping one hand in contact with the bare metal frame (not a painted or coated surface) of the computer case. Keep the PC power cord plugged in to a (3-prong) grounded outlet and turn off the rocker switch on the back of the power supply. If the power supply does not have a switch on the back, this won't work, however. Never work on a PC with the power on. In that case, you should buy an anti-static band or try another method of grounding.
3. As an alternative, alter a standard 3-conductor power cord by snipping off the two flat blades, leaving only the grounding portion of the plug. Or simply purchase a cord like this from an electronics supply house. This accomplishes the same thing as turning off the rocker switch.
4. You can employ an LCD Static Discharger. As a simple measure, you can hang it on your key ring and just dangle it. This is less reliable, but when it touches a ground, it should discharge the static electricity. Procedure:①Lightly touch the oval button with a finger. ②Make sure that the end of the conductive material touches a grounded conductor. (such as vehicle, human body, computer, metal or other) to release static electricity, and observe the LCD display.
5. Some people claim that damage can be reduced by wearing little or no clothing, it is said that the less cloth that is in contact with your body, the less static is produced, though these claims remain unproven.
The average person can carry up to 25,000 volts of static energy at any given time. This sounds like a lot, but because the current level is low, you usually won't notice it. Follow safe ESD procedures any time you open a computer.
If the equipment is cold, wait until it has reached room temperature. ESD builds up much faster when it's cold and dry (low humidity).
If you don't take steps to prevent ESD, you may regret it. Your computer can sustain serious damage without you knowing it. CPUs and memory chips of any kind are highly vulnerable to ESD. If you fry your PC with static electricity, you may soon start to notice random memory errors, blue screens, and lock-ups. Normally, you can't see (or even feel) ESD, but it is almost always there, so be sure to do the right thing. Your PC will thank you!
Try not to open up computers while on thick carpets, petting long-haired pets, dressing, emptying the dryer, etc. Use common sense; don't do anything that would cause you to get a shock from touching something made of metal.
Second, I know you said that you ran Memtest86, please do so again. This time, wait for the BSOD to occur and then upon reboot, run Memtest86. Leave it running for as long as you can. We find, very often, that memory does not always show as bad in Memtest86. There have been instances where an OP has had to run Memtest86 numerous times before the offending memory errors are caught.
Third, please run a
disk check. You may have already done so, but please do it again.
Another thing. The memory you are using may not be compatible with your processor.
This is from the HP Specs; The Intel E7525 chipset supports ECC Registered 400 MHz (PC2-3200) DDR2 memory only.
This is from your system report;
DIMM # 1
SMBus address 0x50
Memory type DDR2
Module format Regular RDIMM
Manufacturer (ID) Hyundai Electronics (AD00000000000000)
Size 1024 MBytes
Max bandwidth PC2-3200 (200 MHz)
Part number HYMP512R72BP4-E3
Serial number 04008044
Manufacturing date Week 24/Year 06
Number of banks 1
Data width 72 bits
Correction ECC
Nominal Voltage 1.80 Volts
EPP no
XMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 3.0-3-3-8-11 @ 200 MHz
JEDEC #2 4.0-3-3-8-11 @ 200 MHz
JEDEC #3 5.0-3-3-8-11 @ 200 MHz
DIMM # 2
SMBus address 0x51
Memory type DDR2
Module format Regular RDIMM
Manufacturer (ID) Hyundai Electronics (AD00000000000000)
Size 1024 MBytes
Max bandwidth PC2-3200 (200 MHz)
Part number HYMP512R72BP4-E3
Serial number 00006024
Manufacturing date Week 24/Year 06
Number of banks 1
Data width 72 bits
Correction ECC
Nominal Voltage 1.80 Volts
EPP no
XMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 3.0-3-3-8-11 @ 200 MHz
JEDEC #2 4.0-3-3-8-11 @ 200 MHz
JEDEC #3 5.0-3-3-8-11 @ 200 MHz
DIMM # 3
SMBus address 0x52
Memory type DDR2
Module format Regular RDIMM
Manufacturer (ID) Hyundai Electronics (AD00000000000000)
Size 1024 MBytes
Max bandwidth PC2-3200 (200 MHz)
Part number HYMP512R72BP4-E3
Serial number 00007053
Manufacturing date Week 24/Year 06
Number of banks 1
Data width 72 bits
Correction ECC
Nominal Voltage 1.80 Volts
EPP no
XMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 3.0-3-3-8-11 @ 200 MHz
JEDEC #2 4.0-3-3-8-11 @ 200 MHz
JEDEC #3 5.0-3-3-8-11 @ 200 MHz
DIMM # 4
SMBus address 0x53
Memory type DDR2
Module format Regular RDIMM
Manufacturer (ID) Hyundai Electronics (AD00000000000000)
Size 1024 MBytes
Max bandwidth PC2-3200 (200 MHz)
Part number HYMP512R72BP4-E3
Serial number 00006114
Manufacturing date Week 24/Year 06
Number of banks 1
Data width 72 bits
Correction ECC
Nominal Voltage 1.80 Volts
EPP no
XMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 3.0-3-3-8-11 @ 200 MHz
JEDEC #2 4.0-3-3-8-11 @ 200 MHz
JEDEC #3 5.0-3-3-8-11 @ 200 MHz
If you are unable to change the timings and frequency in the BIOS, do you have another set that matches the requirements that you could test?
I know this is a lot of info. Please do them one step at a time and test for stability after doing each. Be sure to note any changes in stability as a result of each step and post back with the results.
Happy hunting.