Forum RSS Feed Follow @ Twitter Follow On Facebook

Thread Rating:
  • 2 Vote(s) - 2.5 Average
  • 1
  • 2
  • 3
  • 4
  • 5
[-]
Welcome
You have to register before you can post on our site.

Username:


Password:





[-]
Latest Threads
[REQUEST] Acer Predator Helios 300 PH315...
Last Post: Wiuu
Today 08:49 PM
» Replies: 14
» Views: 3276
[REQUEST] Acer Aspire 5735(Z) & 5335 BIO...
Last Post: emudem
Today 04:39 PM
» Replies: 64
» Views: 17408
WHITELIST REMOVAL REQUEST for bios sp976...
Last Post: Maxinator500
Today 04:18 PM
» Replies: 3
» Views: 64
[SOLVED] HP Pavilion ZD8000 BIOS RAM Lim...
Last Post: k24a1
Today 01:29 PM
» Replies: 52
» Views: 19535
[REQUEST] Lenovo Z50-70 & Z40-70 (9BCNxx...
Last Post: Dudu2002
Today 12:47 PM
» Replies: 777
» Views: 139029
[REQUEST] Memory Timing and Voltage Over...
Last Post: shoen
Today 12:28 PM
» Replies: 0
» Views: 53
[Request] Lenovo Ideapad Yoga 13 (20175)...
Last Post: Dudu2002
Today 11:35 AM
» Replies: 2
» Views: 779
[REQUEST] Lenovo Thinkpad X240 (GIETxxWW...
Last Post: Dudu2002
Today 11:33 AM
» Replies: 366
» Views: 89205
[REQUEST] Yoga 370 Laptop Type 20JJ - RE...
Last Post: BIOSUSER50
Today 08:37 AM
» Replies: 4
» Views: 52
[REQUEST] Unlock Gateway DX4860 (H67, LG...
Last Post: Billy Jenkis
Today 07:37 AM
» Replies: 2
» Views: 170
[REQUEST] Asus ROG Strix GL702ZC BIOS Un...
Last Post: Roland83
Today 07:04 AM
» Replies: 147
» Views: 50481
[REQUEST] Thinkpad T440(s) - Whitelist, ...
Last Post: Dudu2002
Today 06:53 AM
» Replies: 54
» Views: 20291
[REQUEST] Acer Aspire 4738(G,Z) BIOS Unl...
Last Post: yiyileniabc
Today 06:30 AM
» Replies: 52
» Views: 10412
[Request] Thunderobot Zero
Last Post: genius239
Today 05:57 AM
» Replies: 92
» Views: 13059
[REQUEST] BIOS Unlock ASUS X550IK / K550...
Last Post: genius239
Today 05:44 AM
» Replies: 10
» Views: 1602
[REQUEST] Lenovo Z70-80 (ABCNxxWW) White...
Last Post: Dudu2002
Today 05:33 AM
» Replies: 50
» Views: 7837
[REQUEST] Lenovo Y50-70 (9ECNxxWW) BIOS ...
Last Post: Dudu2002
Today 05:28 AM
» Replies: 2305
» Views: 546525
[REQUEST] HP Pavilion dv6t-3100 CTO Ente...
Last Post: Gh0$t
Today 12:53 AM
» Replies: 0
» Views: 92
Intel T9550 for Dell Inspiron 1420
Last Post: Inspiron1420user
Yesterday 09:00 PM
» Replies: 25
» Views: 851
[REQUEST] Lenovo Flex 2-15 (A0CNxxWW) Wh...
Last Post: adnanidani
Yesterday 08:14 PM
» Replies: 411
» Views: 77456

[SOLVED] HP Pavilion ZD8000 BIOS RAM Limit?
#21
Make full CPU-Z TXT Reports with and without moving range.
find
quote
#22
(12-09-2016, 07:32 AM)DeathBringer Wrote: Make full CPU-Z TXT Reports with and without moving range.

Attached.
Note some programs under Windows 9x (including this older CPU-Z and DXDIAG) do not report more than 2048MB of total memory if it is present. CPU-Z gets the total count wrong but however does see later in the report that there are two 2048MB DIMM's.


Attached Files
.txt   BEFORE98.TXT (Size: 50.12 KB / Downloads: 3)
.txt   AFTER98.TXT (Size: 50.12 KB / Downloads: 4)

find
quote
#23
Analysing result of these files: your friend just replace one byte in Host Bridge's registers to change TOLUD (Top of Low Usable DRAM).
I've found an interesting code in BIOSCOD2.ROM
Code:
5D1     mov     al, es:[esi+9Ch]  ; 0x9C is offset of TOLUD
5D9     cmp     al, 0A0h
5DB     jbe     short 5E7h
5DD     mov     al, 0A0h          ; set TOLUD to 0xA0000000
5DF     mov     es:[esi+9Ch], al
5E7     ...
Official BIOS has two files: 3082F34.M22 & 3082F34.M24. I don't know which of them you laptop uses.
Make BIOS backup by Universal BIOS Backup ToolKit 2.0.
find
quote
#24
(12-10-2016, 01:33 AM)DeathBringer Wrote: Analysing result of these files: your friend just replace one byte in Host Bridge's registers to change TOLUD (Top of Low Usable DRAM).
I've found an interesting code in BIOSCOD2.ROM
Code:
5D1 mov al, es:[esi+9Ch] ; 0x9C is offset of TOLUD
5D9 cmp al, 0A0h
5DB jbe short 5E7h
5DD mov al, 0A0h ; set TOLUD to 0xA0000000
5DF mov es:[esi+9Ch], al
5E7 ...
Official BIOS has two files: 3082F34.M22 & 3082F34.M24. I don't know which of them you laptop uses.
Make BIOS backup by Universal BIOS Backup ToolKit 2.0.

Interesting. BIOS backup file here. I'm pretty sure that the choice of which file to use depends on the onboard video (there are M22 and M24 references in the ATI INF file in the HP display driver package for this laptop) so in reality both probably need to be patched.

Which actually leads to another issue; can the module for the onboard video be updated/replaced? Dell apparently issued an update for this particular onboard video that no one else seems to have covered. And, I wondered if another video BIOS module might help the onboard video be more compatible with the last official 9x ATI driver which supports other X600 devices but not this exact model? This is of course a less important issue and I'll worry about it later once the memory issue is fixed.

find
quote
#25
Your laptop uses M24 (ATI Mobility Radeon X600). Version of current VBIOS is 008.019M.044.003, date - 02/21/2005. So Dell BIOS (008.017M.192.060) isn't compatible.
Try to flash my mod.
find
quote
#26
(12-10-2016, 03:32 AM)DeathBringer Wrote: Try to flash my mod.

Unfortunately it doesn't work. After flashing it tries to power up and gives two quick beeps then a pause and then one longer beep. No display is output and it repeatedly tries to access the DVDROM drive for whatever reason. I tried ejecting the tray and leaving it out for the heck of it but it doesn't help. After a few seconds of this it will power down and start over again in a continuous loop.

I thought I had bricked it... but removing 1 of the 2GB DIMMs will allow the system to boot again. Big Grin

So, the system can use the RAM once it is booted as already proven, but it can't POST with it all present and enabled.
I would hazard a guess that something else needs to be patched as well as the points you already found? Huh

What did you use to be able to extract the ROM's? I tried the Phoenix BIOS Editor and it will list them but I can't do anything with them or extract them.


(12-10-2016, 03:32 AM)DeathBringer Wrote: Your laptop uses M24 (ATI Mobility Radeon X600). Version of current VBIOS is 008.019M.044.003, date - 02/21/2005. So Dell BIOS (008.017M.192.060) isn't compatible.

So the second VBIOS version field is what matters for compatibility?
I have tried to find another VBIOS update for this particular graphics chip but no luck besides the Dell one. Any chance one from a standard PCI-E version of an X600 card would work?

find
quote
#27
I need new screenshots of Device Manager with my mod & one DIMM.
P.S. I think your BIOS has the latest compatible vBIOS.
find
quote
#28
(12-11-2016, 02:41 AM)DeathBringer Wrote: I need new screenshots of Device Manager with my mod & one DIMM.

[Image: XPDMMOD1.BMP]
[Image: XPDMMOD2.BMP]
[Image: XPDMMOD3.BMP]


(12-11-2016, 02:41 AM)DeathBringer Wrote: P.S. I think your BIOS has the latest compatible vBIOS.

A user on another forum reported being able to use the last official 9x driver from ATI with a Dell laptop that has a Mobility X600 chip but I haven't been able to reproduce this. This is the only reason I would be interested in changing it at all. The last 9x package supports X600 devices generally but not this specific model. I have a couple of other ideas to try but trying to change the VBIOS is a last resort.

find
quote
#29
Well, try to flash my new mod and test with one & two DIMMs.
P.S. Only third screenshot with expanded node Memory is useful.
find
quote
#30
(12-11-2016, 03:32 AM)DeathBringer Wrote: Well, try to flash my new mod and test with one & two DIMMs.
P.S. Only third screenshot with expanded node Memory is useful.

This one works with both DIMM's. A step in the right direction at least!
Apparently something depends on the RAM being limited during POST.

[Image: XPDMMOD4.BMP]
[Image: XPDMMOD5.BMP]

You didn't say what you were using to be able to extract the ROM's.
Could you attach the uncompressed BIOSCOD2.ROM?

find
quote


Forum Jump:


Users browsing this thread: 9 Guest(s)