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Can not enable EPP with 8500C5D and EVGA 680i MoBo


boulee

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Have tried to enable EPP in the BIOS with out succsess.

 

I think I may have screwed up ram (Bad SPD) because regardless of what EPP setting I use, (0% - 5%, or expert) memory timing stays at 5-5-5-18. the frquency goes up from 800 to 1066, but the timing doesn't change.

 

I have aslo tried setting the memory voltage to Auto and 2.2V manualy with no luck.

 

Any time I have tried to enable EPP, upon reboot and post; 1 long beep and "C1" error code on the to 7 segment displays on the motherboard. I believe that this signifies a memory error. have to jumper the BIOS Reset pin to get the comp to boot again.

 

The sticks are mounted in DIM Slots 0 and 1 (the blue ones)

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The program im using is the BIOS. when I enable EPP in the bios, every thing changes to what it should be except for the timing and voltage.

 

I am currently running the P21 BIOS. and what it comes down to is that any memory setting other that stock Bios settings cause a C1 memory error at boot up and post.

 

I thought I could just enable EPP and be done with it and I guess I was wrong.

 

The problem simplified is : enable EPP in the bios ----> save and exit bios----> reboots with a "C1 Memory Error" post code.

 

 

3 possabilities i came across at the evga forums is to:

 

1) get 1 "starter stick" of DDR2 Ram rated at 1.8 or 1.9 volts. Boot into bios with this, then exit & save and replace with the 2.2v 1066 sticks

 

2) reflash the BIOS with P21. then shut down and jumper the BIOS pins and remove the battery for 30-60 minuts.

 

3) Install the Ram in the black slots

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Got a link to this page on the evga forums. http://www.hardforum.com/showthread.php?t=1129333

 

"Redbeard Official Corsair Rep." claims that

"there were a small number that left the factory with an SPD error due to a faulty SPD writer."

 

Evidently the SPD error sets the spd to 0-5-5-15.

 

and he gave a link to : http://corsairmemory.com/labimages/8500c5fix.zip

 

I'll load CPU-z when I get home from work tonight and see what the SPD file looks like before I download and run the .zip

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ok will do. I belive I have a copy of cpu z on a disk I got with a maximum pc mag that I got.

 

I was just going off of what other people with the same ram on the EVGA forum said and that post with the link to the zip.

 

so the rep is wrong when he says:

12-06-2006, 12:17 PM #9

Redbeard Official Corsair Rep.

 

Quote:

Originally Posted by LgEnder

Doesn't matter that that SPD image given isn't Dominator?

 

 

The SPD on dominator and non-dominator modules is the same except for the name field. The actual value are identical.

 

Keep in mind this will only work with 8500C5 parts, and nothing else. Also, if you have non-8500C5 parts and use this file, you'll likely screw up your memory and also be out of warranty.

 

This will not void the warranty on 8500C5 parts, though, since there were a small number that left the factory with an SPD error due to a faulty SPD writer.

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Well I just down loaded and ran CPU-Z. and the SPD on both sticks has the CAS# Latency set to 0.0

 

What next RAM GUY?

 

http://i58.photobucket.com/albums/g275/boulee82/CPU-ZRAMSlot2.jpg

 

http://i58.photobucket.com/albums/g275/boulee82/CPU-ZRAMSlot1.jpg

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I also grabed PC Wizard 2006 from the makers of CPU-Z.

 

this is what is has as far as memory info:

General Information :

A0 (RAS 0, RAS 1) : 1024 (Double Bank)

A1 (RAS 2, RAS 3) : 1024 (Double Bank)

A2 : Empty

A3 : Empty

 

Information SPD EEPROM (A0) :

Manufacturer : Corsair

Part Number : CM2X1024-8500C5D

Serial Number : Unspecified

Type : DDR2-SDRAM PC2-6400 (399 MHz)

Format : Regular UDIMM (133.35 x 3)

Size : 1024 MB (0 rows, 2 banks)

Module Buffered : No

Module Registered : No

Module EPP : Yes

Width : 64-bit

Error Correction Capability : No

Max. Burst Length : 0

Refresh : Reduced (.5x)7.8 µs, Self Refresh

Voltage : SSTL 1.8v

Prefetch Buffer : 4-bit

Manufacture : Week 255 of 2255

Supported Frequencies : 270 MHz, 400 MHz

CAS Latency (tCL) : 4 clocks @270 MHz, 5 clocks @400 MHz

RAS to CAS (tRCD) : 4 clocks @270 MHz, 5 clocks @400 MHz

RAS Precharge (tRP) : 4 clocks @270 MHz, 5 clocks @400 MHz

Cycle Time (tRAS) : 13 clocks @270 MHz, 18 clocks @400 MHz

Min TRC : 15 clocks @270 MHz, 22 clocks @400 MHz

 

EPP Profile Type : Full Performance

Profiles : 2

Voltage Level (P1) : 0V

Address Command Rate (P1) : 0T

Cycle Time (P1) : 0ns @1.#INF MHz

CAS Latency (tCL) (P1) : 0 clocks

Voltage Level (P2) : 0V

Address Command Rate (P2) : 0T

Cycle Time (P2) : 0ns @1.#INF MHz

CAS Latency (tCL) (P2) : 0 clocks

 

Information SPD EEPROM (A1) :

Manufacturer : Corsair

Part Number : CM2X1024-8500C5D

Serial Number : Unspecified

Type : DDR2-SDRAM PC2-6400 (399 MHz)

Format : Regular UDIMM (133.35 x 3)

Size : 1024 MB (0 rows, 2 banks)

Module Buffered : No

Module Registered : No

Module EPP : Yes

Width : 64-bit

Error Correction Capability : No

Max. Burst Length : 0

Refresh : Reduced (.5x)7.8 µs, Self Refresh

Voltage : SSTL 1.8v

Prefetch Buffer : 4-bit

Manufacture : Week 255 of 2255

Supported Frequencies : 270 MHz, 400 MHz

CAS Latency (tCL) : 4 clocks @270 MHz, 5 clocks @400 MHz

RAS to CAS (tRCD) : 4 clocks @270 MHz, 5 clocks @400 MHz

RAS Precharge (tRP) : 4 clocks @270 MHz, 5 clocks @400 MHz

Cycle Time (tRAS) : 13 clocks @270 MHz, 18 clocks @400 MHz

Min TRC : 15 clocks @270 MHz, 22 clocks @400 MHz

 

EPP Profile Type : Full Performance

Profiles : 2

Voltage Level (P1) : 4.975V

Address Command Rate (P1) : 2T

Cycle Time (P1) : 15ns @66.66666 MHz

CAS Latency (tCL) (P1) : 0 clocks

RAS to CAS (tRCD) (P1) : 5 clocks

RAS Precharge (tRP) (P1) : 5 clocks

Cycle Time (tRAS) (P1) : 17 clocks

tRC (P1) : 17 clocks

tWR (P1) : 5 clocks

Voltage Level (P2) : 2.2V

Address Command Rate (P2) : 2T

Cycle Time (P2) : 1.875ns @533.3333 MHz

CAS Latency (tCL) (P2) : 0 clocks

RAS to CAS (tRCD) (P2) : 5 clocks

RAS Precharge (tRP) (P2) : 5 clocks

Cycle Time (tRAS) (P2) : 15 clocks

tRC (P2) : 30 clocks

tWR (P2) : 8 clocks

 

Memory Controller Information :

Memory Controller : Standard, EDO

Number of connectors : 4

Max. Module Size : 32 MB

Max. Memory Size : 128 MB

Supported Speed : 70ns, 60ns

Supported Voltages : 5v

Error Detection Method : No

Error Correction Capability : Unspecified

Current/Supported Interleave : 1-way/1-way

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no it doesn't. I stated that in my first post.

Any time I have tried to enable EPP, upon reboot and post; 1 long beep and "C1" error code on the to 7 segment displays on the motherboard. I believe that this signifies a memory error. have to jumper the BIOS Reset pin to get the comp to boot again.

 

 

What about this:

 

The cas latency in the EPP profile is 0. wouldn't that explain why my comp wont boot when I enable EPP in the BIOS.

 

EPP Profile Type : Full Performance

Profiles : 2

Voltage Level (P1) : 4.975V

Address Command Rate (P1) : 2T

Cycle Time (P1) : 15ns @66.66666 MHz

CAS Latency (tCL) (P1) : 0 clocks

RAS to CAS (tRCD) (P1) : 5 clocks

RAS Precharge (tRP) (P1) : 5 clocks

Cycle Time (tRAS) (P1) : 17 clocks

tRC (P1) : 17 clocks

tWR (P1) : 5 clocks

Voltage Level (P2) : 2.2V

Address Command Rate (P2) : 2T

Cycle Time (P2) : 1.875ns @533.3333 MHz

CAS Latency (tCL) (P2) : 0 clocks

RAS to CAS (tRCD) (P2) : 5 clocks

RAS Precharge (tRP) (P2) : 5 clocks

Cycle Time (tRAS) (P2) : 15 clocks

tRC (P2) : 30 clocks

tWR (P2) : 8 clocks

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  • Corsair Employees
It tells me that this program is still buggy and or is not reading the chipset properly just like CPU-Z if the modules did not have any information in the SPD it would not post at all and the fact when you load setup defaults the SPD timings are getting set properly. But like I said what happens when you enable EPP ready memory what does CPU-Z say under the Memory Tab?
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what happens when I enable EPP in my BIOS is THE COMP WON'T BOOT

 

How can I tell you what CPU-Z says after I enable EPP, if when EPP is enabled, the computer will not pass POST.

 

All the screan shots I have taken has been with UNMODIFIED bios settings.

 

When I asked what does that mean, I was refering to the RMA process Corsair uses.

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